/* ==========================================================================
   RAQUETE DE TÊNIS - FOLHA DE ESTILOS PRINCIPAL
   Identidade Visual: Esportiva, Moderna, Tecnológica e Premium
   ========================================================================== */

/* 1. VARIÁVEIS CSS (PALETA DE CORES DEFINIDA) */
:root {
    --primary: #005675;
    --primary-dark: #003F56;
    --secondary: #00AEC3;
    --accent: #FF8A00;
    --accent-dark: #FF4D00;
    --cream: #FFF5CE;
    --dark: #141424;
    --gray-dark: #252536;
    --white: #FFFFFF;
    --gray: #F5F5F5;

    /* Variáveis auxiliares de suporte */
    --gray-light: #E9ECEF;
    --gray-medium: #8A92A6;
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.14);
    --shadow-lg: 0 16px 36px rgba(0, 0, 0, 0.22);
    --shadow-glow: 0 0 25px rgba(0, 174, 195, 0.25);
    --shadow-orange-glow: 0 0 25px rgba(255, 138, 0, 0.35);
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --radius-full: 9999px;
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    --container-max: 1240px;
}

/* 2. RESET E TIPOGRAFIA BASE */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    background-color: #0b111a;
    color: #E2E8F0;
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Faixas verticais atléticas dinâmicas de fundo inspiradas na identidade visual */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    background: 
        linear-gradient(90deg, 
            transparent 0%, 
            rgba(0, 86, 117, 0.04) 20%, 
            rgba(0, 174, 195, 0.03) 21%, 
            transparent 22%, 
            transparent 78%, 
            rgba(255, 138, 0, 0.02) 79%, 
            rgba(255, 245, 206, 0.015) 80%, 
            transparent 81%
        ),
        radial-gradient(circle at 15% 30%, rgba(0, 86, 117, 0.2) 0%, transparent 45%),
        radial-gradient(circle at 85% 70%, rgba(0, 63, 86, 0.25) 0%, transparent 50%),
        #0D1520;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

button, input {
    font-family: inherit;
    font-size: inherit;
    border: none;
    outline: none;
}

button {
    cursor: pointer;
}

.container {
    width: 100%;
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
    padding-left: 24px;
    padding-right: 24px;
}

/* 3. ELEMENTOS DE TEXTO E TÍTULOS */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--white);
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.section-title-wrap {
    text-align: center;
    margin-bottom: 48px;
    position: relative;
}

.section-title-wrap::after {
    content: '';
    display: block;
    width: 64px;
    height: 4px;
    margin: 16px auto 0;
    background: linear-gradient(90deg, var(--secondary), var(--accent));
    border-radius: var(--radius-full);
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(0, 174, 195, 0.12);
    border: 1px solid rgba(0, 174, 195, 0.35);
    color: var(--secondary);
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: var(--radius-full);
    margin-bottom: 12px;
}

.section-title {
    font-size: clamp(2rem, 3.5vw, 2.8rem);
    text-transform: uppercase;
    color: var(--white);
}

.section-subtitle {
    font-size: 1.1rem;
    color: #A0AEC0;
    max-width: 600px;
    margin: 12px auto 0;
}

/* Faixas decorativas de estilo esportivo */
.accent-stripe {
    display: inline-block;
    width: 6px;
    height: 24px;
    background: linear-gradient(to bottom, var(--secondary), var(--accent));
    border-radius: 3px;
    vertical-align: middle;
    margin-right: 10px;
}

/* 4. HEADER & NAVEGAÇÃO */
.site-header {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(13, 21, 32, 0.88);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(0, 174, 195, 0.2);
    transition: all var(--transition-base);
}

.site-header.scrolled {
    background: rgba(10, 16, 26, 0.96);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    border-bottom: 1px solid rgba(0, 174, 195, 0.3);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 82px;
    transition: height var(--transition-fast);
}

.site-header.scrolled .header-container {
    height: 72px;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.45rem;
    letter-spacing: 0.04em;
    color: var(--white);
    text-transform: uppercase;
}

.logo-badge {
    position: relative;
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border: 2px solid var(--secondary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    box-shadow: 0 0 15px rgba(0, 174, 195, 0.3);
    overflow: hidden;
}

.logo-badge::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 4px;
    height: 200%;
    background: var(--accent);
    transform: rotate(25deg);
}

.logo-text span {
    color: var(--secondary);
}

/* Nav Menu */
.main-nav {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 8px;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 16px;
    font-size: 0.95rem;
    font-weight: 600;
    color: #CBD5E1;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
    color: var(--white);
    background: rgba(0, 86, 117, 0.25);
}

.nav-link .arrow-icon {
    font-size: 0.7rem;
    transition: transform var(--transition-fast);
}

/* Submenu Dropdown Desktop */
.dropdown-menu {
    position: absolute;
    top: calc(100% + 12px);
    left: 0;
    min-width: 210px;
    background: var(--gray-dark);
    border: 1px solid rgba(0, 174, 195, 0.3);
    border-radius: var(--radius-md);
    padding: 10px 0;
    list-style: none;
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: all var(--transition-base);
    z-index: 1100;
}

.dropdown-menu::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 28px;
    width: 12px;
    height: 12px;
    background: var(--gray-dark);
    border-left: 1px solid rgba(0, 174, 195, 0.3);
    border-top: 1px solid rgba(0, 174, 195, 0.3);
    transform: rotate(45deg);
}

.nav-item.has-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-item.has-dropdown:hover .nav-link .arrow-icon {
    transform: rotate(180deg);
}

.dropdown-link {
    display: block;
    padding: 10px 20px;
    color: #E2E8F0;
    font-size: 0.92rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.dropdown-link:hover {
    color: var(--accent);
    background: rgba(0, 86, 117, 0.3);
    padding-left: 24px;
}

/* Botão Hamburger Mobile */
.menu-toggle {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1150;
}

.hamburger-lines {
    width: 26px;
    height: 20px;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.hamburger-lines span {
    display: block;
    height: 3px;
    width: 100%;
    background-color: var(--white);
    border-radius: 3px;
    transition: all var(--transition-base);
}

.menu-toggle.active .hamburger-lines span:nth-child(1) {
    transform: translateY(8.5px) rotate(45deg);
    background-color: var(--accent);
}

.menu-toggle.active .hamburger-lines span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active .hamburger-lines span:nth-child(3) {
    transform: translateY(-8.5px) rotate(-45deg);
    background-color: var(--accent);
}

/* 5. HERO / BANNER PRINCIPAL */
.hero-section {
    position: relative;
    min-height: 600px;
    height: 72vh;
    max-height: 680px;
    display: flex;
    align-items: center;
    background-color: var(--dark);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 25%;
    transform: scale(1.03);
    animation: heroZoom 20s infinite alternate ease-in-out;
}

@keyframes heroZoom {
    0% { transform: scale(1); }
    100% { transform: scale(1.08); }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg, 
        rgba(10, 16, 26, 0.94) 0%, 
        rgba(10, 16, 26, 0.82) 45%, 
        rgba(0, 63, 86, 0.55) 75%, 
        rgba(10, 16, 26, 0.7) 100%
    );
    z-index: 2;
}

/* Faixas atléticas dinâmicas no Hero */
.hero-decor-stripes {
    position: absolute;
    right: 8%;
    top: 0;
    height: 100%;
    width: 140px;
    display: flex;
    gap: 16px;
    transform: skewX(-18deg);
    opacity: 0.18;
    pointer-events: none;
    z-index: 2;
}

.hero-decor-stripes div:nth-child(1) { width: 14px; background: var(--secondary); }
.hero-decor-stripes div:nth-child(2) { width: 28px; background: var(--primary); }
.hero-decor-stripes div:nth-child(3) { width: 8px; background: var(--accent); }
.hero-decor-stripes div:nth-child(4) { width: 4px; background: var(--cream); }

.hero-content {
    position: relative;
    z-index: 3;
    max-width: 680px;
    padding: 40px 0;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: rgba(0, 174, 195, 0.15);
    border: 1px solid rgba(0, 174, 195, 0.4);
    border-radius: var(--radius-full);
    color: var(--cream);
    font-size: 0.88rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 24px;
    backdrop-filter: blur(8px);
}

.hero-badge-dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent);
}

.hero-title {
    font-size: clamp(2.8rem, 6vw, 4.4rem);
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: -0.01em;
    line-height: 1.05;
    margin-bottom: 20px;
    color: var(--white);
    text-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
}

.hero-title .highlight-cyan {
    color: var(--secondary);
    position: relative;
    display: inline-block;
}

.hero-title .highlight-orange {
    color: var(--accent);
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.35rem);
    color: #CBD5E1;
    margin-bottom: 36px;
    font-weight: 400;
    line-height: 1.6;
}

.hero-cta-group {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
}

/* Botões Modernos */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 30px;
    font-size: 0.98rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    color: var(--white);
    box-shadow: 0 8px 24px rgba(255, 77, 0, 0.35);
}

.btn-accent:hover {
    background: linear-gradient(135deg, #FF9E26 0%, #FF5E1A 100%);
    box-shadow: 0 12px 28px rgba(255, 77, 0, 0.5);
    transform: translateY(-2px);
    color: var(--white);
}

.btn-accent:active {
    transform: translateY(0);
}

.btn-outline {
    background: rgba(0, 86, 117, 0.15);
    color: var(--white);
    border: 1.5px solid rgba(0, 174, 195, 0.5);
    backdrop-filter: blur(6px);
}

.btn-outline:hover {
    background: rgba(0, 174, 195, 0.25);
    border-color: var(--secondary);
    color: var(--cream);
    transform: translateY(-2px);
}

/* 6. BANNER ROTATIVO DE MARCAS */
.brands-section {
    padding: 42px 0;
    background: linear-gradient(180deg, #0d1520 0%, #111a27 100%);
    border-bottom: 1px solid rgba(0, 174, 195, 0.15);
    position: relative;
}

.brands-title {
    text-align: center;
    font-size: 0.95rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--secondary);
    margin-bottom: 24px;
}

.carousel-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    max-width: 1100px;
    margin: 0 auto;
}

.carousel-viewport {
    overflow: hidden;
    width: 100%;
    border-radius: var(--radius-md);
    cursor: grab;
}

.carousel-viewport:active {
    cursor: grabbing;
}

.carousel-track {
    display: flex;
    transition: transform var(--transition-smooth);
    will-change: transform;
}

.brand-card {
    flex: 0 0 calc(100% / 5);
    padding: 8px 12px;
    box-sizing: border-box;
    cursor: pointer;
}

@media (max-width: 992px) {
    .brand-card {
        flex: 0 0 calc(100% / 3);
    }
}

@media (max-width: 600px) {
    .brand-card {
        flex: 0 0 calc(100% / 2);
    }
}

.brand-inner {
    background: #FFFFFF;
    border: 2px solid rgba(0, 174, 195, 0.25);
    border-radius: var(--radius-md);
    padding: 8px 12px;
    height: 74px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
}

.brand-inner::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--secondary), var(--accent));
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.brand-inner:hover {
    background: #FFFFFF;
    border-color: var(--secondary);
    transform: translateY(-4px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.35), 0 0 20px rgba(0, 174, 195, 0.4);
}

.brand-inner:hover::before {
    opacity: 1;
}

.brand-logo {
    width: 100%;
    max-width: 160px;
    height: 50px;
    object-fit: contain;
    object-position: center;
    margin: 0 auto;
    display: block;
    transition: transform var(--transition-base);
}

.brand-inner:hover .brand-logo {
    transform: scale(1.06);
}

.brand-name {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    color: var(--white);
    text-transform: uppercase;
    transition: color var(--transition-fast);
}

.brand-inner:hover .brand-name {
    color: var(--cream);
}

.carousel-btn {
    background: rgba(0, 86, 117, 0.7);
    color: var(--white);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    border: 1px solid rgba(0, 174, 195, 0.3);
    cursor: pointer;
    transition: all var(--transition-fast);
    z-index: 5;
    flex-shrink: 0;
}

.carousel-btn:hover {
    background: var(--secondary);
    color: var(--dark);
    box-shadow: 0 0 15px rgba(0, 174, 195, 0.6);
    transform: scale(1.08);
}

.carousel-btn.prev {
    margin-right: 12px;
}

.carousel-btn.next {
    margin-left: 12px;
}

/* 7. SEÇÃO ENCONTRE SUA RAQUETE (3 CARDS DE CATEGORIA) */
.category-guide-section {
    padding: 80px 0;
    position: relative;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.category-card {
    background: linear-gradient(145deg, rgba(25, 37, 54, 0.8) 0%, rgba(16, 25, 38, 0.95) 100%);
    border: 1px solid rgba(0, 174, 195, 0.2);
    border-radius: var(--radius-lg);
    padding: 36px 30px;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 6px;
    height: 100%;
    background: var(--primary);
    transition: width var(--transition-base);
}

.category-card:hover {
    transform: translateY(-8px);
    border-color: rgba(0, 174, 195, 0.5);
    box-shadow: var(--shadow-md), var(--shadow-glow);
}

.category-card:hover::before {
    width: 100%;
    opacity: 0.05;
}

.category-card.iniciante::before { background: var(--secondary); }
.category-card.intermediario::before { background: var(--primary); }
.category-card.performance::before { background: var(--accent); }

.category-badge-level {
    align-self: flex-start;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 20px;
}

.category-card.iniciante .category-badge-level {
    background: rgba(0, 174, 195, 0.2);
    color: var(--secondary);
    border: 1px solid rgba(0, 174, 195, 0.4);
}

.category-card.intermediario .category-badge-level {
    background: rgba(0, 86, 117, 0.3);
    color: #4FD1C5;
    border: 1px solid rgba(0, 86, 117, 0.6);
}

.category-card.performance .category-badge-level {
    background: rgba(255, 138, 0, 0.18);
    color: var(--accent);
    border: 1px solid rgba(255, 138, 0, 0.4);
}

.category-title {
    font-size: 1.7rem;
    margin-bottom: 14px;
    color: var(--white);
}

.category-desc {
    color: #94A3B8;
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 28px;
    flex-grow: 1;
}

.category-btn {
    align-self: flex-start;
    background: rgba(0, 86, 117, 0.3);
    color: var(--white);
    border: 1.5px solid rgba(0, 174, 195, 0.4);
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.88rem;
    letter-spacing: 0.05em;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.category-btn:hover {
    background: var(--secondary);
    color: var(--dark);
    border-color: var(--secondary);
    transform: translateX(4px);
    box-shadow: 0 4px 15px rgba(0, 174, 195, 0.4);
}

/* 8. SEÇÃO DE PRODUTOS & FILTROS */
.products-section {
    padding: 90px 0;
    background: linear-gradient(180deg, rgba(13, 21, 32, 0.6) 0%, rgba(8, 14, 23, 0.95) 100%);
    position: relative;
}

/* Barra de Filtros e Busca */
.filters-bar-container {
    background: rgba(20, 30, 45, 0.8);
    border: 1px solid rgba(0, 174, 195, 0.2);
    border-radius: var(--radius-lg);
    padding: 18px 24px;
    margin-bottom: 44px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
    backdrop-filter: blur(10px);
}

.filters-btn-group {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 22px;
    background: rgba(0, 86, 117, 0.2);
    color: #CBD5E1;
    border: 1px solid rgba(0, 174, 195, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 600;
    transition: all var(--transition-fast);
}

.filter-btn:hover {
    background: rgba(0, 174, 195, 0.2);
    color: var(--white);
    border-color: var(--secondary);
}

.filter-btn.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--secondary);
    box-shadow: 0 0 15px rgba(0, 174, 195, 0.35);
}

.search-box {
    position: relative;
    min-width: 280px;
    flex-grow: 1;
    max-width: 400px;
}

.search-input {
    width: 100%;
    padding: 11px 18px 11px 44px;
    background: rgba(10, 16, 26, 0.8);
    border: 1px solid rgba(0, 174, 195, 0.25);
    border-radius: var(--radius-full);
    color: var(--white);
    font-size: 0.95rem;
    transition: all var(--transition-fast);
}

.search-input:focus {
    border-color: var(--secondary);
    box-shadow: 0 0 15px rgba(0, 174, 195, 0.3);
    background: rgba(10, 16, 26, 0.95);
}

.search-input::placeholder {
    color: #64748B;
}

.search-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--secondary);
    font-size: 1rem;
    pointer-events: none;
}

/* Grid de Produtos */
.products-grid,
.rackets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 32px;
}


/* Cards de Produto */
.product-card {
    background: linear-gradient(160deg, rgba(23, 34, 50, 0.9) 0%, rgba(14, 21, 33, 0.95) 100%);
    border: 1px solid rgba(0, 174, 195, 0.18);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: all var(--transition-base);
    position: relative;
    box-shadow: var(--shadow-sm);
}

.product-card:hover {
    transform: translateY(-8px);
    border-color: rgba(0, 174, 195, 0.45);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.product-card-thumb {
    position: relative;
    background: radial-gradient(circle at center, #1b283b 0%, #0c1421 100%);
    height: 310px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
}

.product-card-thumb img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform var(--transition-smooth);
}

.product-card:hover .product-card-thumb img {
    transform: scale(1.08);
}

.product-category-tag {
    position: absolute;
    top: 16px;
    right: 16px;
    background: rgba(0, 86, 117, 0.85);
    border: 1px solid rgba(0, 174, 195, 0.4);
    color: var(--cream);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 0.76rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    backdrop-filter: blur(6px);
}

.product-card-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.product-brand {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: 6px;
}

.product-name {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 12px;
    line-height: 1.3;
}

.product-desc {
    font-size: 0.92rem;
    color: #94A3B8;
    line-height: 1.55;
    margin-bottom: 20px;
    flex-grow: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-discount-badge-thumb {
    position: absolute;
    top: 16px;
    left: 16px;
    background: linear-gradient(135deg, #FF5E1A 0%, #E63900 100%);
    color: #FFFFFF;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    box-shadow: 0 4px 12px rgba(255, 94, 26, 0.45);
    z-index: 2;
}

.product-price-box {
    margin-bottom: 20px;
    padding-top: 14px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: baseline;
    justify-content: space-between;
}

.product-price-box.has-discount {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
}

.price-discount-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.price-old {
    font-size: 0.88rem;
    color: #94A3B8;
    text-decoration: line-through;
    font-weight: 500;
}

.price-discount-badge {
    background: rgba(34, 197, 94, 0.18);
    color: #4ADE80;
    border: 1px solid rgba(74, 222, 128, 0.35);
    font-size: 0.75rem;
    font-weight: 800;
    padding: 2px 7px;
    border-radius: 4px;
}

.price-main-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    width: 100%;
}

.price-label {
    font-size: 0.8rem;
    color: #64748B;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.product-price {
    font-family: var(--font-heading);
    font-size: 1.7rem;
    font-weight: 800;
    color: var(--accent);
    letter-spacing: -0.01em;
    text-shadow: 0 0 15px rgba(255, 138, 0, 0.25);
}

.product-card-actions {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
}

.btn-card-learn {
    background: rgba(0, 86, 117, 0.3);
    color: var(--white);
    border: 1px solid rgba(0, 174, 195, 0.35);
    padding: 11px;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 0.88rem;
    text-align: center;
    transition: all var(--transition-fast);
}

.btn-card-learn:hover {
    background: var(--primary);
    border-color: var(--secondary);
    color: var(--cream);
}

.btn-card-ml {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    color: var(--white);
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 0.9rem;
    text-align: center;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    white-space: nowrap;
    box-shadow: 0 4px 14px rgba(255, 77, 0, 0.3);
    transition: all var(--transition-fast);
    text-decoration: none;
    box-sizing: border-box;
}

.btn-card-ml:hover {
    background: linear-gradient(135deg, #FF9E26 0%, #FF5E1A 100%);
    box-shadow: 0 6px 20px rgba(255, 77, 0, 0.45);
    transform: translateY(-2px);
    color: var(--white);
}

/* Mensagem de busca vazia */
.no-results {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    background: rgba(20, 30, 45, 0.5);
    border: 1px dashed rgba(0, 174, 195, 0.3);
    border-radius: var(--radius-lg);
}

.no-results h3 {
    font-size: 1.4rem;
    color: var(--white);
    margin-bottom: 8px;
}

.no-results p {
    color: #94A3B8;
}

/* 9. PÁGINA DE PRODUTO INDIVIDUAL (produto.html) */
.product-detail-section {
    padding: 60px 0 90px;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: #94A3B8;
    margin-bottom: 36px;
}

.breadcrumb a:hover {
    color: var(--secondary);
}

.breadcrumb-separator {
    color: #64748B;
}

.breadcrumb-current {
    color: var(--cream);
    font-weight: 600;
}

.product-detail-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: start;
    margin-bottom: 80px;
}

.product-gallery-card {
    background: radial-gradient(circle at center, #1b283b 0%, #0c1421 100%);
    border: 1px solid rgba(0, 174, 195, 0.25);
    border-radius: var(--radius-lg);
    padding: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    box-shadow: var(--shadow-md);
}

.product-gallery-card img {
    max-height: 520px;
    width: auto;
    object-fit: contain;
    transition: transform var(--transition-smooth);
}

.product-gallery-card:hover img {
    transform: scale(1.05);
}

.detail-badge-cat {
    position: absolute;
    top: 24px;
    left: 24px;
    background: var(--primary);
    border: 1px solid var(--secondary);
    color: var(--cream);
    padding: 6px 16px;
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.product-info-col {
    display: flex;
    flex-direction: column;
}

.detail-brand {
    font-size: 1rem;
    font-weight: 700;
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 8px;
}

.detail-name {
    font-size: clamp(2rem, 3vw, 2.8rem);
    color: var(--white);
    margin-bottom: 18px;
}

.detail-price-box {
    background: rgba(20, 30, 45, 0.65);
    border-left: 4px solid var(--accent);
    padding: 18px 24px;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin-bottom: 24px;
}

.detail-price-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 6px;
}

.detail-price-label {
    font-size: 0.85rem;
    color: #94A3B8;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.detail-discount-pill {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.2) 0%, rgba(16, 185, 129, 0.3) 100%);
    color: #4ADE80;
    border: 1px solid rgba(74, 222, 128, 0.4);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 0.82rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    box-shadow: 0 2px 10px rgba(34, 197, 94, 0.2);
}

.detail-price-old-row {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 4px;
    font-size: 0.95rem;
    color: #94A3B8;
}

.detail-price-de, .detail-price-por {
    font-size: 0.88rem;
    color: #64748B;
    text-transform: lowercase;
}

.detail-price-old {
    text-decoration: line-through;
    color: #94A3B8;
    font-size: 1.2rem;
    font-weight: 600;
}

.detail-price-main-row {
    display: flex;
    align-items: baseline;
    gap: 12px;
    flex-wrap: wrap;
}

.detail-price {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent);
    line-height: 1.1;
}

.detail-discount-text {
    font-size: 0.95rem;
    font-weight: 700;
    color: #4ADE80;
}

.detail-description {
    font-size: 1.05rem;
    color: #CBD5E1;
    line-height: 1.75;
    margin-bottom: 32px;
}

.detail-actions {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 32px;
    width: 100%;
}

.btn-large-ml {
    width: 100%;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    color: var(--white);
    padding: 16px 24px;
    font-size: clamp(0.92rem, 1.1vw, 1.05rem);
    font-weight: 800;
    border-radius: var(--radius-md);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    white-space: nowrap;
    text-decoration: none;
    box-shadow: 0 10px 28px rgba(255, 77, 0, 0.4);
    transition: all var(--transition-base);
    box-sizing: border-box;
}

.btn-large-ml svg,
.btn-large-ml .btn-ml-icon {
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    display: inline-block;
}

.btn-large-ml span {
    white-space: nowrap;
    display: inline-block;
}

.btn-large-ml:hover {
    background: linear-gradient(135deg, #FF9E26 0%, #FF5E1A 100%);
    box-shadow: 0 14px 34px rgba(255, 77, 0, 0.55);
    transform: translateY(-3px);
    color: var(--white);
}

.btn-back-home {
    width: 100%;
    background: rgba(0, 86, 117, 0.25);
    color: var(--white);
    border: 1px solid rgba(0, 174, 195, 0.4);
    padding: 14px 24px;
    font-weight: 700;
    font-size: 0.95rem;
    border-radius: var(--radius-md);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all var(--transition-fast);
    white-space: nowrap;
    text-decoration: none;
    box-sizing: border-box;
}

.btn-back-home:hover {
    background: var(--primary);
    border-color: var(--secondary);
    color: var(--cream);
}

/* ESPECIFICAÇÕES TÉCNICAS */
.specs-section {
    margin-top: 40px;
    margin-bottom: 80px;
}

.specs-title {
    font-size: 1.8rem;
    text-transform: uppercase;
    color: var(--white);
    margin-bottom: 28px;
    display: flex;
    align-items: center;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.spec-item {
    background: linear-gradient(145deg, rgba(23, 34, 50, 0.8) 0%, rgba(15, 23, 35, 0.95) 100%);
    border: 1px solid rgba(0, 174, 195, 0.18);
    border-radius: var(--radius-md);
    padding: 20px 24px;
    display: flex;
    flex-direction: column;
    transition: all var(--transition-fast);
}

.spec-item:hover {
    border-color: rgba(0, 174, 195, 0.4);
    background: rgba(0, 86, 117, 0.2);
    transform: translateY(-3px);
}

.spec-label {
    font-size: 0.82rem;
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 600;
    margin-bottom: 6px;
}

.spec-value {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--white);
}

/* Card de Descrição e Análise Detalhada abaixo de Especificações */
.product-description-card {
    margin-top: 36px;
    background: linear-gradient(150deg, rgba(23, 35, 52, 0.9) 0%, rgba(13, 21, 32, 0.98) 100%);
    border: 1px solid rgba(0, 174, 195, 0.25);
    border-radius: var(--radius-lg);
    padding: 38px 36px;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.product-description-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 6px;
    height: 100%;
    background: linear-gradient(to bottom, var(--secondary), var(--accent));
}

.desc-card-header {
    margin-bottom: 22px;
}

.desc-badge {
    display: inline-block;
    padding: 4px 14px;
    background: rgba(0, 174, 195, 0.15);
    border: 1px solid rgba(0, 174, 195, 0.35);
    color: var(--secondary);
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    border-radius: var(--radius-full);
    margin-bottom: 10px;
}

.desc-card-title {
    font-size: clamp(1.5rem, 2.5vw, 1.9rem);
    color: var(--white);
    font-weight: 700;
    line-height: 1.3;
}

.desc-card-body {
    font-size: 1.05rem;
    color: #CBD5E1;
    line-height: 1.85;
    margin-bottom: 30px;
}

.desc-card-body p {
    margin-bottom: 18px;
}

.desc-card-body p:last-child {
    margin-bottom: 0;
}

.desc-card-body strong {
    color: var(--white);
    font-weight: 700;
}

.desc-card-body em {
    color: var(--secondary);
    font-style: normal;
    font-weight: 600;
}

/* Blocos estruturados da Descrição Técnica */
.desc-feature-block {
    margin: 24px 0;
    padding: 22px 24px;
    background: rgba(14, 23, 35, 0.6);
    border: 1px solid rgba(0, 174, 195, 0.16);
    border-radius: var(--radius-md);
}

.desc-subtitle {
    font-size: 1.15rem;
    color: var(--white);
    font-weight: 700;
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.desc-benefits-list {
    list-style: none;
    padding-left: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.desc-benefits-list li {
    position: relative;
    padding-left: 26px;
    color: #CBD5E1;
    font-size: 0.98rem;
    line-height: 1.6;
}

.desc-benefits-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 0;
    color: #4ADE80;
    font-weight: 800;
}

.desc-tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 14px;
    margin-top: 12px;
}

.tech-card {
    background: rgba(23, 35, 52, 0.65);
    border-left: 3px solid var(--secondary);
    padding: 14px 18px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 0.92rem;
    color: #CBD5E1;
    line-height: 1.55;
}

.tech-card strong {
    color: var(--white);
    display: block;
    margin-bottom: 4px;
    font-size: 0.98rem;
}

.tech-card span {
    color: #94A3B8;
}

.warranty-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 174, 195, 0.12);
    border: 1px solid rgba(0, 174, 195, 0.3);
    padding: 10px 18px;
    border-radius: var(--radius-md);
    margin-top: 14px;
    font-size: 0.95rem;
    color: var(--white);
}

/* Grid de Destaques Rápidos da Descrição */
.desc-highlights-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    padding-top: 26px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.desc-highlight-item {
    background: rgba(10, 16, 26, 0.65);
    border: 1px solid rgba(0, 174, 195, 0.18);
    border-radius: var(--radius-md);
    padding: 20px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    transition: all var(--transition-fast);
}

.desc-highlight-item:hover {
    border-color: rgba(0, 174, 195, 0.45);
    transform: translateY(-2px);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
}

.highlight-icon {
    font-size: 1.7rem;
    line-height: 1;
    flex-shrink: 0;
    margin-top: 2px;
}

.highlight-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.highlight-label {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--secondary);
    font-weight: 700;
}

.highlight-value {
    font-size: 0.94rem;
    color: #F1F5F9;
    font-weight: 500;
    line-height: 1.5;
}

@media (max-width: 900px) {
    .desc-highlights-grid {
        grid-template-columns: 1fr;
    }

    .product-description-card {
        padding: 28px 22px;
    }
}

/* PRODUTOS RELACIONADOS */
.related-section {
    padding-top: 48px;
    margin-top: 24px;
    border-top: 1px solid rgba(0, 174, 195, 0.2);
}

.related-title {
    font-size: 1.8rem;
    color: var(--white);
    margin-bottom: 32px;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.related-section .balls-grid {
    grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 900px) {
    .related-section .balls-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .related-section .balls-grid {
        grid-template-columns: 1fr;
    }
}

/* 10. GUIA DO TENISTA (BLOG) */
.blog-section {
    padding: 90px 0;
    background: #0d1520;
    position: relative;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.blog-card {
    background: linear-gradient(160deg, rgba(23, 34, 50, 0.8) 0%, rgba(14, 21, 33, 0.95) 100%);
    border: 1px solid rgba(0, 174, 195, 0.18);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.blog-card:hover {
    transform: translateY(-8px);
    border-color: rgba(0, 174, 195, 0.45);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.blog-thumb {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.blog-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-smooth);
}

.blog-card:hover .blog-thumb img {
    transform: scale(1.08);
}

.blog-tag {
    position: absolute;
    bottom: 14px;
    left: 14px;
    background: rgba(0, 63, 86, 0.9);
    border: 1px solid var(--secondary);
    color: var(--cream);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 4px 12px;
    border-radius: var(--radius-full);
}

.blog-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.blog-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 12px;
    line-height: 1.35;
}

.blog-desc {
    font-size: 0.92rem;
    color: #94A3B8;
    line-height: 1.6;
    margin-bottom: 24px;
    flex-grow: 1;
}

.btn-blog-read {
    align-self: flex-start;
    color: var(--secondary);
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition-fast);
}

.btn-blog-read:hover {
    color: var(--accent);
    transform: translateX(5px);
}

/* Modal do Artigo do Blog */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(7, 11, 18, 0.85);
    backdrop-filter: blur(8px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: #141f2e;
    border: 1px solid rgba(0, 174, 195, 0.35);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 680px;
    max-height: 85vh;
    overflow-y: auto;
    padding: 36px;
    position: relative;
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    transform: translateY(20px);
    transition: transform var(--transition-smooth);
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-close-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(255, 255, 255, 0.08);
    border: none;
    color: var(--white);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.modal-close-btn:hover {
    background: var(--accent);
    transform: rotate(90deg);
}

.modal-body h3 {
    font-size: 1.6rem;
    color: var(--white);
    margin-bottom: 16px;
    padding-right: 30px;
}

.modal-body p {
    color: #CBD5E1;
    line-height: 1.7;
    margin-bottom: 16px;
}

/* 11. FOOTER */
.site-footer {
    background: #090e16;
    border-top: 1px solid rgba(0, 174, 195, 0.2);
    padding: 70px 0 30px;
    position: relative;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
    gap: 48px;
    margin-bottom: 60px;
}

.footer-col-about .logo {
    margin-bottom: 16px;
}

.footer-tagline {
    color: #94A3B8;
    font-size: 0.96rem;
    line-height: 1.6;
    max-width: 320px;
    margin-bottom: 24px;
}

.footer-col-title {
    font-size: 1.1rem;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 22px;
    position: relative;
    padding-bottom: 10px;
}

.footer-col-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 32px;
    height: 3px;
    background: var(--secondary);
    border-radius: var(--radius-full);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: #94A3B8;
    font-size: 0.92rem;
    transition: all var(--transition-fast);
    display: inline-block;
}

.footer-links a:hover {
    color: var(--accent);
    transform: translateX(4px);
}

.footer-social-links {
    display: flex;
    gap: 12px;
    margin-top: 10px;
}

.social-icon-btn {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-md);
    background: rgba(0, 86, 117, 0.25);
    border: 1px solid rgba(0, 174, 195, 0.3);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    transition: all var(--transition-fast);
}

.social-icon-btn:hover {
    background: var(--secondary);
    color: var(--dark);
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(0, 174, 195, 0.4);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 28px;
    text-align: center;
    color: #64748B;
    font-size: 0.88rem;
}

/* 12. ANIMAÇÕES GLOBAIS */
.fade-in {
    animation: fadeIn 0.8s ease forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 13. RESPONSIVIDADE (TABLETS E CELULARES) */
@media (max-width: 1024px) {
    .categories-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 18px;
    }
    
    .blog-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 36px;
    }
}

@media (max-width: 860px) {
    .menu-toggle {
        display: block;
    }

    .main-nav {
        position: fixed;
        top: 82px;
        right: -100%;
        width: 80%;
        max-width: 360px;
        height: calc(100vh - 82px);
        background: #111a28;
        border-left: 1px solid rgba(0, 174, 195, 0.25);
        flex-direction: column;
        align-items: stretch;
        padding: 30px 24px;
        transition: right var(--transition-base);
        overflow-y: auto;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
    }

    .main-nav.active {
        right: 0;
    }

    .nav-list {
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
    }

    .nav-link {
        padding: 14px 18px;
        font-size: 1.05rem;
        justify-content: space-between;
    }

    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: rgba(8, 14, 23, 0.6);
        border: 1px solid rgba(0, 174, 195, 0.15);
        border-radius: var(--radius-sm);
        margin: 6px 0 12px 14px;
        display: none;
    }

    .dropdown-menu::before {
        display: none;
    }

    .nav-item.dropdown-open .dropdown-menu {
        display: block;
    }

    .nav-item.dropdown-open .nav-link .arrow-icon {
        transform: rotate(180deg);
    }

    .hero-section {
        min-height: 520px;
        height: auto;
    }

    .hero-content {
        padding: 60px 0;
    }

    .categories-grid {
        grid-template-columns: 1fr;
    }

    .product-detail-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .product-gallery-card {
        padding: 20px;
    }

    .product-gallery-card img {
        max-height: 380px;
    }

    .blog-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .header-container {
        height: 72px;
    }

    .main-nav {
        top: 72px;
        height: calc(100vh - 72px);
        width: 88%;
    }

    .logo-text {
        font-size: 1.2rem;
    }

    .hero-title {
        font-size: 2.3rem;
    }

    .hero-subtitle {
        font-size: 1.02rem;
    }

    .filters-bar-container {
        flex-direction: column;
        align-items: stretch;
    }

    .search-box {
        min-width: 100%;
        max-width: 100%;
    }

    .filters-btn-group {
        justify-content: center;
    }

    .products-grid,
    .rackets-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .detail-actions {
        flex-direction: column;
    }

    .btn-large-ml, .btn-back-home {
        width: 100%;
    }

    .btn-large-ml {
        padding: 14px 16px;
        font-size: 0.88rem;
        gap: 8px;
        letter-spacing: 0.02em;
    }

    .btn-large-ml svg {
        width: 19px;
        height: 19px;
    }
}

/* ==========================================================================
   18. PÁGINA EXCLUSIVA DE RAQUETES (raquetes/raquetes.html) & PÁGINAS COMPLEMENTARES
   ========================================================================== */

.page-header-section {
    padding: 50px 0 35px;
    background: linear-gradient(180deg, rgba(13, 21, 32, 0.95) 0%, rgba(10, 16, 26, 0.9) 100%);
    border-bottom: 1px solid rgba(0, 174, 195, 0.2);
    position: relative;
    overflow: hidden;
}

.page-header-section::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 174, 195, 0.12) 0%, transparent 70%);
    pointer-events: none;
}

.page-header-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 24px;
    flex-wrap: wrap;
}

.page-title-group h1 {
    font-size: clamp(2.2rem, 4vw, 3.2rem);
    text-transform: uppercase;
    color: var(--white);
    margin-bottom: 12px;
}

.page-title-group p {
    font-size: 1.1rem;
    color: #94A3B8;
    max-width: 680px;
    line-height: 1.6;
}

.rackets-count-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 18px;
    background: rgba(0, 86, 117, 0.35);
    border: 1px solid rgba(0, 174, 195, 0.4);
    border-radius: var(--radius-full);
    color: var(--secondary);
    font-weight: 700;
    font-size: 0.92rem;
    white-space: nowrap;
    backdrop-filter: blur(8px);
}

.rackets-count-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: #10B981;
    box-shadow: 0 0 10px #10B981;
}

/* Barra de Filtros Completa para Raquetes */
.catalog-controls {
    background: rgba(18, 27, 41, 0.9);
    border: 1px solid rgba(0, 174, 195, 0.22);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin: 40px 0 44px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(12px);
}

.catalog-controls-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    flex-wrap: wrap;
}

.catalog-controls-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    flex-wrap: wrap;
    padding-top: 18px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.brand-chips-group {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.brand-chip-label {
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 700;
    color: var(--secondary);
    margin-right: 4px;
}

.brand-chip {
    padding: 7px 16px;
    background: rgba(10, 16, 26, 0.7);
    color: #94A3B8;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.brand-chip:hover {
    background: rgba(0, 174, 195, 0.18);
    color: var(--white);
    border-color: var(--secondary);
}

.brand-chip.active {
    background: var(--secondary);
    color: var(--dark);
    font-weight: 700;
    border-color: var(--secondary);
    box-shadow: 0 0 16px rgba(0, 174, 195, 0.4);
}

.sort-and-reset {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
}

.sort-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
}

.sort-label {
    font-size: 0.85rem;
    color: #94A3B8;
    font-weight: 600;
    white-space: nowrap;
}

.sort-select {
    padding: 9px 36px 9px 16px;
    background-color: rgba(10, 16, 26, 0.9);
    color: var(--white);
    border: 1px solid rgba(0, 174, 195, 0.3);
    border-radius: var(--radius-md);
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2300AEC3' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    transition: border-color var(--transition-fast);
}

.sort-select:focus {
    border-color: var(--secondary);
    outline: none;
    box-shadow: 0 0 12px rgba(0, 174, 195, 0.35);
}

.sort-select option {
    background-color: #0d1520;
    color: #E2E8F0;
}

.btn-reset-filters {
    padding: 8px 16px;
    background: transparent;
    color: #94A3B8;
    border: 1px dashed rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    font-size: 0.82rem;
    font-weight: 600;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.btn-reset-filters:hover {
    color: var(--accent);
    border-color: var(--accent);
    background: rgba(255, 138, 0, 0.08);
}

/* Especificações Técnicas no Card da Raquete */
.product-card-specs {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px 12px;
    margin: 14px 0 16px;
    padding: 12px 14px;
    background: rgba(10, 16, 26, 0.65);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(8px);
}

.spec-chip {
    display: flex;
    flex-direction: column;
    min-width: 0;
    transition: transform 0.15s ease;
}

.spec-chip:hover {
    transform: translateY(-1px);
}

.spec-chip-label {
    font-size: 0.70rem;
    color: #64748B;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 700;
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.spec-chip-value {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--cream);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.25;
}

/* Guia Informativo de Escolha no Rodapé de Raquetes */
.rackets-guide-banner {
    margin-top: 80px;
    background: linear-gradient(145deg, rgba(23, 35, 52, 0.8) 0%, rgba(13, 21, 32, 0.95) 100%);
    border: 1px solid rgba(0, 174, 195, 0.25);
    border-radius: var(--radius-lg);
    padding: 44px 36px;
    position: relative;
    overflow: hidden;
}

.rackets-guide-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 6px;
    height: 100%;
    background: linear-gradient(to bottom, var(--secondary), var(--accent));
}

.rackets-guide-title {
    font-size: 1.8rem;
    color: var(--white);
    margin-bottom: 8px;
}

.rackets-guide-subtitle {
    font-size: 1rem;
    color: #94A3B8;
    margin-bottom: 30px;
}

.rackets-guide-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.rackets-guide-item {
    background: rgba(10, 16, 26, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-md);
    padding: 22px;
}

.rackets-guide-item h4 {
    font-size: 1.1rem;
    color: var(--secondary);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.rackets-guide-item p {
    font-size: 0.92rem;
    color: #CBD5E1;
    line-height: 1.6;
}

/* Páginas Complementares (Em Breve) */
.coming-soon-wrapper {
    min-height: 550px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 20px 100px;
}

.coming-soon-card {
    max-width: 680px;
    width: 100%;
    text-align: center;
    background: linear-gradient(160deg, rgba(23, 34, 50, 0.9) 0%, rgba(14, 21, 33, 0.95) 100%);
    border: 1px solid rgba(0, 174, 195, 0.3);
    border-radius: var(--radius-lg);
    padding: 56px 40px;
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.coming-soon-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    border-radius: 50%;
    background: rgba(0, 174, 195, 0.15);
    border: 1.5px solid rgba(0, 174, 195, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.2rem;
    color: var(--secondary);
}

.coming-soon-title {
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    color: var(--white);
    margin-bottom: 14px;
}

.coming-soon-desc {
    font-size: 1.05rem;
    color: #94A3B8;
    line-height: 1.65;
    margin-bottom: 32px;
}

.coming-soon-brands {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 36px;
}

.coming-soon-brand-badge {
    padding: 6px 14px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    font-size: 0.82rem;
    color: var(--cream);
    font-weight: 600;
}

/* Responsividade adicional */
@media (max-width: 900px) {
    .rackets-guide-grid {
        grid-template-columns: 1fr;
    }

    .catalog-controls-top,
    .catalog-controls-bottom {
        flex-direction: column;
        align-items: stretch;
    }

    .sort-and-reset {
        justify-content: space-between;
    }
}

/* ==========================================================================
   18. PÁGINA DEDICADA DO BLOG (blog.html) - ESTILOS COMPLETOS
   ========================================================================== */
.blog-header-section {
    padding: 130px 0 40px;
    background: radial-gradient(circle at 50% 10%, rgba(0, 174, 195, 0.12) 0%, rgba(11, 17, 26, 0.98) 75%);
    border-bottom: 1px solid rgba(0, 174, 195, 0.12);
    position: relative;
}

.blog-controls-wrapper {
    margin-top: 30px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.blog-filters-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.blog-filter-chips {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.blog-filter-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: #94A3B8;
    padding: 8px 18px;
    border-radius: var(--radius-full);
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-body);
}

.blog-filter-btn:hover {
    background: rgba(0, 174, 195, 0.15);
    color: var(--white);
    border-color: rgba(0, 174, 195, 0.4);
}

.blog-filter-btn.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--secondary);
    box-shadow: 0 0 15px rgba(0, 174, 195, 0.35);
}

/* Featured / Destaque Card */
.blog-featured-card {
    background: linear-gradient(135deg, rgba(23, 37, 56, 0.85) 0%, rgba(13, 20, 31, 0.98) 100%);
    border: 1px solid rgba(0, 174, 195, 0.3);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    margin-bottom: 50px;
    box-shadow: var(--shadow-lg), 0 0 35px rgba(0, 174, 195, 0.12);
    transition: all var(--transition-base);
}

.blog-featured-card:hover {
    border-color: var(--secondary);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    transform: translateY(-4px);
}

.blog-featured-thumb {
    position: relative;
    min-height: 380px;
    overflow: hidden;
}

.blog-featured-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-smooth);
}

.blog-featured-card:hover .blog-featured-thumb img {
    transform: scale(1.05);
}

.blog-featured-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    background: var(--accent);
    color: var(--dark);
    font-size: 0.78rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    box-shadow: 0 4px 12px rgba(255, 138, 0, 0.4);
}

.blog-featured-body {
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.blog-featured-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 0.85rem;
    color: var(--secondary);
    font-weight: 600;
    margin-bottom: 14px;
}

.blog-featured-title {
    font-size: clamp(1.6rem, 2.2vw, 2.1rem);
    color: var(--white);
    line-height: 1.3;
    font-weight: 800;
    margin-bottom: 16px;
}

.blog-featured-desc {
    font-size: 1rem;
    color: #94A3B8;
    line-height: 1.65;
    margin-bottom: 28px;
}

.blog-featured-author {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 28px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.author-avatar {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--secondary) 0%, var(--primary) 100%);
    color: var(--white);
    font-weight: 800;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.author-meta {
    display: flex;
    flex-direction: column;
}

.author-meta strong {
    color: var(--white);
    font-size: 0.95rem;
}

.author-meta span {
    color: #64748B;
    font-size: 0.8rem;
}

/* Grid de Artigos do Blog */
.blog-articles-catalog {
    padding: 40px 0 80px;
}

.blog-articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 32px;
}

.blog-article-card {
    background: linear-gradient(160deg, rgba(23, 34, 50, 0.75) 0%, rgba(14, 21, 33, 0.95) 100%);
    border: 1px solid rgba(0, 174, 195, 0.18);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.blog-article-card:hover {
    transform: translateY(-8px);
    border-color: rgba(0, 174, 195, 0.5);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.blog-article-thumb {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.blog-article-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-smooth);
}

.blog-article-card:hover .blog-article-thumb img {
    transform: scale(1.08);
}

.blog-article-meta-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px 0;
    font-size: 0.8rem;
    color: #8A92A6;
    font-weight: 500;
}

.blog-article-meta-row span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.blog-article-body {
    padding: 18px 24px 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.blog-article-title {
    font-size: 1.22rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 12px;
    line-height: 1.38;
}

.blog-article-desc {
    font-size: 0.92rem;
    color: #94A3B8;
    line-height: 1.6;
    margin-bottom: 22px;
    flex-grow: 1;
}

.blog-article-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.blog-author-mini {
    font-size: 0.82rem;
    color: #8A92A6;
}

.blog-author-mini strong {
    color: #E2E8F0;
}

/* Leitor Modal Estilizado Ampliado */
.modal-content {
    max-width: 820px;
    padding: 40px;
}

.modal-article-header {
    margin-bottom: 24px;
}

.modal-article-tags {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 16px;
    font-size: 0.85rem;
    color: #94A3B8;
}

.modal-article-tags .blog-tag {
    position: static;
}

.modal-article-title {
    font-size: clamp(1.8rem, 3vw, 2.3rem);
    color: var(--white);
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 12px;
}

.modal-article-subtitle {
    font-size: 1.1rem;
    color: var(--secondary);
    font-weight: 600;
    line-height: 1.5;
    margin-bottom: 20px;
}

.modal-article-author {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 18px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.modal-article-image-wrap {
    width: 100%;
    max-height: 380px;
    overflow: hidden;
    border-radius: var(--radius-md);
    margin: 24px 0 32px;
    border: 1px solid rgba(0, 174, 195, 0.25);
}

.modal-article-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.modal-article-content {
    color: #D1D5DB;
    font-size: 1.05rem;
    line-height: 1.8;
}

.modal-article-content p {
    margin-bottom: 20px;
}

.modal-article-content h4 {
    color: var(--white);
    font-size: 1.35rem;
    font-weight: 700;
    margin: 32px 0 12px;
}

.modal-article-content ul {
    margin: 16px 0 24px 24px;
}

.modal-article-content li {
    margin-bottom: 10px;
    color: #CBD5E1;
}

.article-callout-tip {
    background: rgba(0, 174, 195, 0.08);
    border-left: 4px solid var(--secondary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    padding: 20px 24px;
    margin: 32px 0;
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.callout-icon {
    font-size: 1.6rem;
    line-height: 1;
}

.article-callout-tip strong {
    color: var(--cream);
    display: block;
    margin-bottom: 6px;
    font-size: 1.05rem;
}

.article-callout-tip p {
    margin-bottom: 0;
    color: #E2E8F0;
    font-size: 0.95rem;
}

/* Raquetes Recomendadas dentro do Modal */
.modal-recommended-rackets {
    margin-top: 36px;
    padding-top: 28px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.modal-recommended-rackets h4 {
    font-size: 1.15rem;
    color: var(--white);
    margin-bottom: 16px;
}

.recommended-cards-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 14px;
}

.rec-racket-chip {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(0, 174, 195, 0.25);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.rec-racket-chip:hover {
    background: rgba(0, 174, 195, 0.12);
    border-color: var(--secondary);
    transform: translateY(-2px);
}

.rec-racket-icon {
    font-size: 1.4rem;
}

.rec-racket-info {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.rec-racket-info strong {
    color: var(--white);
    font-size: 0.95rem;
}

.rec-racket-info span {
    color: #94A3B8;
    font-size: 0.78rem;
}

.rec-racket-arrow {
    color: var(--secondary);
    font-weight: 700;
    font-size: 1.1rem;
    transition: transform var(--transition-fast);
}

.rec-racket-chip:hover .rec-racket-arrow {
    transform: translateX(4px);
    color: var(--accent);
}

.modal-article-footer-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-top: 36px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    flex-wrap: wrap;
}

/* Seção Newsletter do Blog */
.blog-newsletter-section {
    padding: 50px 0 80px;
}

.newsletter-card {
    background: linear-gradient(135deg, rgba(0, 86, 117, 0.3) 0%, rgba(20, 31, 46, 0.85) 100%);
    border: 1px solid rgba(0, 174, 195, 0.35);
    border-radius: var(--radius-lg);
    padding: 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg), 0 0 35px rgba(0, 174, 195, 0.12);
}

.newsletter-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(255, 138, 0, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.newsletter-content {
    max-width: 540px;
}

.newsletter-content h2 {
    font-size: clamp(1.6rem, 2.5vw, 2.2rem);
    color: var(--white);
    margin-bottom: 12px;
}

.newsletter-content p {
    color: #94A3B8;
    font-size: 1rem;
    line-height: 1.6;
}

.newsletter-form {
    display: flex;
    gap: 12px;
    width: 100%;
    max-width: 440px;
}

.newsletter-input {
    flex-grow: 1;
    background: rgba(11, 17, 26, 0.85);
    border: 1px solid rgba(0, 174, 195, 0.3);
    border-radius: var(--radius-full);
    padding: 14px 22px;
    color: var(--white);
    font-size: 0.95rem;
    font-family: var(--font-body);
    outline: none;
    transition: all var(--transition-fast);
}

.newsletter-input:focus {
    border-color: var(--secondary);
    box-shadow: 0 0 15px rgba(0, 174, 195, 0.25);
}

/* Toast Global de Notificação */
.site-toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: #003F56;
    border: 1px solid var(--secondary);
    color: var(--white);
    padding: 14px 24px;
    border-radius: var(--radius-md);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5), 0 0 20px rgba(0, 174, 195, 0.3);
    font-size: 0.95rem;
    font-weight: 600;
    z-index: 3000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(15px);
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    gap: 10px;
}

.site-toast.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Responsividade do Blog */
@media (max-width: 992px) {
    .blog-featured-card {
        grid-template-columns: 1fr;
    }

    .blog-featured-thumb {
        min-height: 260px;
    }

    .blog-featured-body {
        padding: 30px 24px;
    }

    .newsletter-card {
        flex-direction: column;
        align-items: stretch;
        padding: 32px 24px;
    }

    .newsletter-form {
        max-width: 100%;
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .blog-articles-grid {
        grid-template-columns: 1fr;
    }

    .modal-content {
        padding: 24px 20px;
    }

    .modal-article-footer-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .blog-filters-row {
        flex-direction: column;
        align-items: stretch;
    }

    .blog-filter-chips {
        overflow-x: auto;
        padding-bottom: 8px;
        flex-wrap: nowrap;
    }

    .blog-filter-btn {
        white-space: nowrap;
    }
}

/* ==========================================================================
   19. PÁGINAS INDIVIDUAIS DE ARTIGOS DO BLOG (single-article)
   ========================================================================== */
.single-article-header {
    padding: 130px 0 36px;
    background: radial-gradient(circle at 50% 15%, rgba(0, 174, 195, 0.14) 0%, rgba(11, 17, 26, 0.98) 75%);
    border-bottom: 1px solid rgba(0, 174, 195, 0.14);
}

.article-header-meta-row {
    display: flex;
    align-items: center;
    gap: 16px;
    margin: 18px 0 14px;
    flex-wrap: wrap;
    font-size: 0.9rem;
    color: #94A3B8;
}

.article-header-title {
    font-size: clamp(2rem, 3.5vw, 2.8rem);
    color: var(--white);
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 16px;
}

.article-header-subtitle {
    font-size: clamp(1.05rem, 1.6vw, 1.22rem);
    color: #CBD5E1;
    line-height: 1.6;
    max-width: 860px;
    margin-bottom: 24px;
}

.article-author-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding-top: 18px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    flex-wrap: wrap;
}

.article-author-info {
    display: flex;
    align-items: center;
    gap: 14px;
}

.article-author-info .author-avatar {
    width: 46px;
    height: 46px;
    font-size: 1.2rem;
}

.article-author-info strong {
    color: var(--white);
    font-size: 1rem;
    display: block;
}

.article-author-info span {
    color: var(--secondary);
    font-size: 0.84rem;
    font-weight: 600;
}

.article-quick-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Layout Principal de 2 Colunas */
.single-article-section {
    padding: 50px 0 80px;
}

.single-article-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 48px;
    align-items: start;
}

.article-featured-media {
    width: 100%;
    max-height: 460px;
    overflow: hidden;
    border-radius: var(--radius-lg);
    margin-bottom: 36px;
    border: 1px solid rgba(0, 174, 195, 0.25);
    box-shadow: var(--shadow-md), 0 0 25px rgba(0, 174, 195, 0.1);
}

.article-featured-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.article-body-content {
    color: #CBD5E1;
    font-size: 1.08rem;
    line-height: 1.85;
}

.article-body-content p {
    margin-bottom: 22px;
}

.article-body-content h2 {
    color: var(--white);
    font-size: 1.65rem;
    font-weight: 800;
    margin: 40px 0 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(0, 174, 195, 0.2);
    display: flex;
    align-items: center;
    gap: 10px;
}

.article-body-content h3 {
    color: var(--cream);
    font-size: 1.35rem;
    font-weight: 700;
    margin: 32px 0 14px;
}

.article-body-content ul,
.article-body-content ol {
    margin: 16px 0 26px 28px;
}

.article-body-content li {
    margin-bottom: 10px;
    color: #E2E8F0;
}

.article-body-content strong {
    color: var(--white);
}

.article-body-content em {
    color: var(--secondary);
    font-style: normal;
    font-weight: 600;
}

/* Callout Box do Artigo Individual */
.article-highlight-box {
    background: linear-gradient(135deg, rgba(0, 174, 195, 0.12) 0%, rgba(0, 86, 117, 0.25) 100%);
    border-left: 4px solid var(--accent);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    padding: 24px;
    margin: 36px 0;
    display: flex;
    gap: 18px;
    box-shadow: var(--shadow-sm);
}

.article-highlight-box .box-icon {
    font-size: 2rem;
    line-height: 1;
}

.article-highlight-box h4 {
    color: var(--white);
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.article-highlight-box p {
    margin-bottom: 0;
    color: #E2E8F0;
    font-size: 0.98rem;
}

/* Vitrine de Raquetes Recomendadas no Artigo */
.article-rackets-section {
    background: rgba(20, 31, 46, 0.6);
    border: 1px solid rgba(0, 174, 195, 0.25);
    border-radius: var(--radius-lg);
    padding: 30px;
    margin: 44px 0;
}

.article-rackets-section h3 {
    color: var(--white);
    font-size: 1.3rem;
    margin-bottom: 8px;
}

.article-rackets-section p {
    color: #94A3B8;
    font-size: 0.92rem;
    margin-bottom: 20px;
}

.article-rackets-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 18px;
}

.article-racket-card {
    background: rgba(11, 17, 26, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: 18px;
    display: flex;
    gap: 16px;
    text-decoration: none;
    transition: all var(--transition-base);
}

.article-racket-card:hover {
    border-color: var(--secondary);
    background: rgba(0, 174, 195, 0.08);
    transform: translateY(-3px);
    box-shadow: 0 6px 18px rgba(0, 174, 195, 0.2);
}

.article-racket-thumb {
    width: 60px;
    height: 70px;
    object-fit: contain;
    background: rgba(255, 255, 255, 0.04);
    border-radius: var(--radius-sm);
    padding: 4px;
}

.article-racket-details {
    display: flex;
    flex-direction: column;
    justify-content: center;
    flex-grow: 1;
}

.article-racket-details strong {
    color: var(--white);
    font-size: 1rem;
    margin-bottom: 4px;
}

.article-racket-details span {
    color: #94A3B8;
    font-size: 0.8rem;
    margin-bottom: 8px;
}

.article-racket-link-text {
    color: var(--secondary);
    font-size: 0.82rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 4px;
}

.article-racket-card:hover .article-racket-link-text {
    color: var(--accent);
}

/* Card de Bio do Autor */
.article-author-card {
    background: linear-gradient(135deg, rgba(23, 34, 50, 0.8) 0%, rgba(14, 21, 33, 0.95) 100%);
    border: 1px solid rgba(0, 174, 195, 0.2);
    border-radius: var(--radius-lg);
    padding: 28px;
    margin: 44px 0 32px;
    display: flex;
    gap: 20px;
    align-items: center;
}

.article-author-card .author-avatar {
    width: 64px;
    height: 64px;
    font-size: 1.6rem;
    flex-shrink: 0;
}

.article-author-bio strong {
    color: var(--white);
    font-size: 1.15rem;
    display: block;
    margin-bottom: 2px;
}

.article-author-bio .author-role {
    color: var(--secondary);
    font-size: 0.85rem;
    font-weight: 600;
    display: block;
    margin-bottom: 10px;
}

.article-author-bio p {
    color: #94A3B8;
    font-size: 0.92rem;
    line-height: 1.55;
    margin-bottom: 0;
}

/* Barra de Compartilhamento Social */
.article-social-share {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    margin-bottom: 36px;
    flex-wrap: wrap;
}

.share-label {
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--white);
    display: flex;
    align-items: center;
    gap: 8px;
}

.share-buttons-group {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.share-btn {
    padding: 8px 16px;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
    font-family: var(--font-body);
}

.share-btn-whatsapp {
    background: #25D366;
    color: #071F11;
}

.share-btn-whatsapp:hover {
    background: #20BA5A;
    box-shadow: 0 4px 14px rgba(37, 211, 102, 0.4);
}

.share-btn-copy {
    background: rgba(255, 255, 255, 0.08);
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.share-btn-copy:hover {
    background: rgba(0, 174, 195, 0.2);
    border-color: var(--secondary);
    color: var(--white);
}

.share-btn-all-articles {
    background: transparent;
    color: var(--secondary);
    border: 1px solid var(--secondary);
}

.share-btn-all-articles:hover {
    background: var(--secondary);
    color: var(--dark);
}

/* Navegação Anterior / Próximo */
.article-nav-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 36px;
}

.article-nav-card {
    background: rgba(23, 34, 50, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    padding: 18px 22px;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    transition: all var(--transition-fast);
}

.article-nav-card:hover {
    border-color: var(--secondary);
    background: rgba(0, 174, 195, 0.08);
    transform: translateY(-2px);
}

.article-nav-direction {
    font-size: 0.78rem;
    text-transform: uppercase;
    color: var(--secondary);
    font-weight: 700;
    letter-spacing: 0.06em;
    margin-bottom: 6px;
}

.article-nav-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1.4;
}

.article-nav-card.prev {
    text-align: left;
}

.article-nav-card.next {
    text-align: right;
}

/* Sidebar do Artigo */
.article-sidebar {
    display: flex;
    flex-direction: column;
    gap: 30px;
    position: sticky;
    top: 100px;
}

.sidebar-widget {
    background: linear-gradient(160deg, rgba(23, 34, 50, 0.7) 0%, rgba(14, 21, 33, 0.92) 100%);
    border: 1px solid rgba(0, 174, 195, 0.18);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

.widget-title {
    font-size: 1.15rem;
    color: var(--white);
    font-weight: 700;
    margin-bottom: 18px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    gap: 8px;
}

.sidebar-articles-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.sidebar-article-item {
    display: flex;
    gap: 14px;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.sidebar-article-item:hover .sidebar-article-title {
    color: var(--secondary);
}

.sidebar-article-thumb {
    width: 68px;
    height: 68px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    flex-shrink: 0;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.sidebar-article-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.sidebar-article-title {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--white);
    line-height: 1.35;
    margin-bottom: 4px;
    transition: color var(--transition-fast);
}

.sidebar-article-date {
    font-size: 0.75rem;
    color: #64748B;
}

.sidebar-categories-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.sidebar-cat-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: #94A3B8;
    text-decoration: none;
    font-size: 0.9rem;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.03);
    transition: all var(--transition-fast);
}

.sidebar-cat-link:hover {
    background: rgba(0, 174, 195, 0.12);
    color: var(--white);
    transform: translateX(4px);
}

.sidebar-cat-count {
    font-size: 0.78rem;
    background: rgba(0, 174, 195, 0.2);
    color: var(--secondary);
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-weight: 700;
}

.widget-cta-banner {
    background: linear-gradient(135deg, rgba(0, 86, 117, 0.6) 0%, rgba(255, 138, 0, 0.25) 100%);
    border: 1px solid var(--secondary);
    text-align: center;
    padding: 30px 20px;
}

.widget-cta-banner h4 {
    font-size: 1.25rem;
    color: var(--white);
    margin-bottom: 10px;
}

.widget-cta-banner p {
    font-size: 0.9rem;
    color: #E2E8F0;
    margin-bottom: 18px;
}

/* Responsividade de Página de Artigo */
@media (max-width: 992px) {
    .single-article-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .article-sidebar {
        position: static;
    }
}

@media (max-width: 768px) {
    .article-nav-row {
        grid-template-columns: 1fr;
    }

    .article-author-card {
        flex-direction: column;
        text-align: center;
    }

    .article-social-share {
        flex-direction: column;
        align-items: stretch;
    }

    .share-buttons-group {
        justify-content: center;
    }
}

/* ==========================================================================
   20. SEÇÃO DE BOLINHAS DE TÊNIS (HOME & CATÁLOGO)
   ========================================================================== */
.balls-section {
    padding: 85px 0;
    background: linear-gradient(180deg, rgba(10, 16, 25, 0.98) 0%, rgba(14, 23, 36, 0.95) 50%, rgba(10, 16, 25, 0.98) 100%);
    position: relative;
    border-top: 1px solid rgba(0, 174, 195, 0.15);
    border-bottom: 1px solid rgba(0, 174, 195, 0.15);
}

.balls-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 36px;
}

.ball-card {
    background: linear-gradient(160deg, rgba(23, 34, 50, 0.9) 0%, rgba(14, 21, 33, 0.95) 100%);
    border: 1px solid rgba(0, 174, 195, 0.18);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: all var(--transition-base);
    position: relative;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.ball-card:hover {
    transform: translateY(-6px);
    border-color: rgba(0, 174, 195, 0.5);
    box-shadow: 0 16px 36px rgba(0, 0, 0, 0.55), 0 0 20px rgba(0, 174, 195, 0.2);
}

.ball-card-thumb {
    height: 250px;
    background: radial-gradient(circle at center, #1b283b 0%, #0c1421 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    overflow: hidden;
}

.ball-card-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-md);
    transition: transform var(--transition-smooth);
}

.ball-card:hover .ball-card-thumb img {
    transform: scale(1.06);
}

.ball-badge {
    position: absolute;
    top: 14px;
    left: 14px;
    background: linear-gradient(135deg, var(--secondary) 0%, #007A8A 100%);
    color: #041017;
    font-weight: 800;
    font-size: 0.74rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    z-index: 2;
    box-shadow: 0 4px 10px rgba(0, 174, 195, 0.35);
}

.ball-package-tag {
    position: absolute;
    top: 14px;
    right: 14px;
    background: rgba(10, 17, 26, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.18);
    color: var(--cream);
    font-size: 0.72rem;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    backdrop-filter: blur(4px);
    z-index: 2;
}

.ball-card-body {
    padding: 22px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.ball-brand {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 4px;
}

.ball-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 10px;
    line-height: 1.3;
}

.ball-desc {
    font-size: 0.88rem;
    color: #94A3B8;
    line-height: 1.55;
    margin-bottom: 16px;
    flex-grow: 1;
}

.ball-specs {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 18px;
}

.ball-chip {
    background: rgba(0, 86, 117, 0.25);
    border: 1px solid rgba(0, 174, 195, 0.25);
    color: #CBD5E1;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 4px;
}

.ball-price-box {
    margin-bottom: 16px;
    padding-top: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.ball-price-old-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 3px;
}

.ball-price-old {
    font-size: 0.84rem;
    color: #94A3B8;
    text-decoration: line-through;
    font-weight: 500;
}

.ball-discount-badge {
    background: rgba(34, 197, 94, 0.18);
    color: #4ADE80;
    border: 1px solid rgba(74, 222, 128, 0.35);
    font-size: 0.72rem;
    font-weight: 800;
    padding: 2px 6px;
    border-radius: 4px;
}

.ball-price-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
}

.ball-price-label {
    font-size: 0.75rem;
    color: #64748B;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.ball-price {
    font-family: var(--font-heading);
    font-size: 1.55rem;
    font-weight: 800;
    color: var(--accent);
    text-shadow: 0 0 12px rgba(255, 138, 0, 0.2);
}

.btn-ball-buy {
    width: 100%;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    color: var(--white);
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 0.88rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    white-space: nowrap;
    text-decoration: none;
    box-shadow: 0 4px 14px rgba(255, 77, 0, 0.35);
    transition: all var(--transition-fast);
    box-sizing: border-box;
}

.btn-ball-buy svg {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
}

.btn-ball-buy:hover {
    background: linear-gradient(135deg, #FF9E26 0%, #FF5E1A 100%);
    box-shadow: 0 6px 20px rgba(255, 77, 0, 0.5);
    transform: translateY(-2px);
    color: var(--white);
}

@media (max-width: 1100px) {
    .balls-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media (max-width: 620px) {
    .balls-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .balls-section {
        padding: 60px 0;
    }
    .ball-card-thumb {
        height: 220px;
    }
}