/* ================================================
   PHONG THỦY CÁT LÀNH - Main Stylesheet
   ================================================ */

/* === CSS Variables === */
:root {
    --primary: #8B1A1A;
    --primary-light: #B22222;
    --primary-dark: #5C1010;
    --accent: #D4AF37;
    --accent-light: #F0D060;
    --accent-dark: #B8931A;
    --bg-dark: #1A0A0A;
    --bg-body: #FDF8F0;
    --bg-card: #FFFFFF;
    --bg-section: #F5EDE0;
    --text-primary: #2C1810;
    --text-secondary: #6B5B4F;
    --text-light: #9A8A7E;
    --text-white: #FFFFFF;
    --border: #E8DDD0;
    --shadow: 0 4px 24px rgba(139, 26, 26, 0.08);
    --shadow-hover: 0 12px 40px rgba(139, 26, 26, 0.15);
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 20px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --container: 1240px;
}

/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-body);
    background: var(--bg-body);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; font-size: inherit; }

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 20px;
}

/* === Ticker Bar === */
.ticker-bar {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    color: var(--accent-light);
    overflow: hidden;
    height: 36px;
    display: flex;
    align-items: center;
    position: relative;
    z-index: 100;
}
.ticker-track {
    display: flex;
    white-space: nowrap;
    animation: ticker 30s linear infinite;
}
.ticker-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 0 40px;
    font-size: 0.82rem;
    font-weight: 500;
}
.ticker-item i { color: #FF6B35; font-size: 0.75rem; }
@keyframes ticker {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* === Header === */
.site-header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 99;
    transition: var(--transition);
}
.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--primary);
}
.logo-icon {
    font-size: 1.8rem;
    filter: drop-shadow(0 2px 4px rgba(139, 26, 26, 0.3));
}
.logo-text { letter-spacing: 0.5px; }

.main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
}
.nav-link {
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-secondary);
    position: relative;
}
.nav-link:hover, .nav-link.active {
    color: var(--primary);
    background: rgba(139, 26, 26, 0.06);
}
.nav-link i { font-size: 0.65rem; margin-left: 4px; }

/* Dropdown */
.nav-dropdown { position: relative; }
.dropdown-menu {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    min-width: 220px;
    background: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow-hover);
    border: 1px solid var(--border);
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: var(--transition);
    z-index: 100;
}
.nav-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.dropdown-menu a {
    display: block;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    color: var(--text-secondary);
}
.dropdown-menu a:hover {
    background: rgba(139, 26, 26, 0.06);
    color: var(--primary);
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}
.header-search {
    display: flex;
    align-items: center;
    background: var(--bg-section);
    border-radius: 50px;
    padding: 0 4px 0 14px;
    border: 1px solid transparent;
    transition: var(--transition);
}
.header-search:focus-within {
    border-color: var(--accent);
    background: var(--bg-card);
}
.header-search input {
    border: none;
    background: transparent;
    padding: 8px 8px;
    width: 160px;
    font-size: 0.85rem;
    outline: none;
}
.header-search button {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary);
    color: var(--text-white);
    font-size: 0.75rem;
}
.header-search button:hover { background: var(--primary-light); }

.btn-header-login {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    background: var(--primary);
    color: var(--text-white);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
}
.btn-header-login:hover { background: var(--primary-light); color: var(--text-white); }

.btn-cart {
    position: relative;
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-section);
    border-radius: 50%;
    color: var(--text-primary);
    font-size: 1.1rem;
}
.btn-cart:hover { background: var(--accent-light); }
.cart-count {
    position: absolute;
    top: 0; right: 0;
    width: 18px; height: 18px;
    background: var(--primary);
    color: var(--text-white);
    border-radius: 50%;
    font-size: 0.65rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* User Dropdown */
.user-dropdown { position: relative; }
.user-dropdown-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 50px;
    background: var(--bg-section);
    font-size: 0.85rem;
    color: var(--text-primary);
}
.user-dropdown-btn:hover { background: var(--border); }
.user-dropdown-menu {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    min-width: 200px;
    background: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow-hover);
    border: 1px solid var(--border);
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(6px);
    transition: var(--transition);
    z-index: 100;
}
.user-dropdown:hover .user-dropdown-menu,
.user-dropdown-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.user-dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    color: var(--text-secondary);
}
.user-dropdown-menu a:hover {
    background: rgba(139, 26, 26, 0.06);
    color: var(--primary);
}
.user-dropdown-menu hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 4px 0;
}

/* Mobile menu */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 6px;
}
.mobile-menu-btn span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* === Hero / Banner === */
.hero-section {
    position: relative;
    height: 520px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--primary-dark) 50%, #3D0C0C 100%);
}
.hero-slider {
    position: relative;
    width: 100%;
    height: 100%;
}
.hero-slide {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 1s ease;
}
.hero-slide.active { opacity: 1; }
.hero-slide-content {
    text-align: center;
    color: var(--text-white);
    z-index: 2;
    padding: 0 20px;
}
.hero-slide-content h1 {
    font-family: var(--font-heading);
    font-size: 3.2rem;
    font-weight: 800;
    margin-bottom: 16px;
    text-shadow: 0 4px 20px rgba(0,0,0,0.3);
}
.hero-slide-content p {
    font-size: 1.15rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto 28px;
    line-height: 1.7;
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, transparent 0%, rgba(0,0,0,0.4) 100%);
}
.hero-particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
}
.hero-particles span {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--accent);
    border-radius: 50%;
    animation: particleFloat 6s ease-in-out infinite;
    opacity: 0.5;
}
@keyframes particleFloat {
    0%, 100% { transform: translateY(0) scale(1); opacity: 0.3; }
    50% { transform: translateY(-80px) scale(1.5); opacity: 0.7; }
}
.hero-dots {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 3;
}
.hero-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    cursor: pointer;
    transition: var(--transition);
}
.hero-dot.active {
    background: var(--accent);
    transform: scale(1.2);
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: var(--bg-dark);
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    box-shadow: 0 6px 20px rgba(212, 175, 55, 0.3);
    transition: var(--transition);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.4);
    color: var(--bg-dark);
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border: 2px solid var(--primary);
    color: var(--primary);
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
}
.btn-outline:hover {
    background: var(--primary);
    color: var(--text-white);
    transform: translateY(-2px);
}

/* === Section Titles === */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-section); }
.section-dark {
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--primary-dark) 100%);
    color: var(--text-white);
}
.section-header {
    text-align: center;
    margin-bottom: 48px;
}
.section-header h2 {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}
.section-dark .section-header h2 { color: var(--text-white); }
.section-header .subtitle {
    font-size: 1rem;
    color: var(--text-light);
}
.section-dark .section-header .subtitle { color: rgba(255,255,255,0.7); }
.section-header .accent-line {
    display: block;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--primary));
    margin: 16px auto 0;
    border-radius: 3px;
}

/* === Product Grid === */
.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.product-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
}
.product-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
}
.product-card-image {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    background: var(--bg-section);
}
.product-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.product-card:hover .product-card-image img {
    transform: scale(1.08);
}
.product-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.badge-tag {
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.badge-sale {
    background: #FF4747;
    color: white;
}
.badge-new {
    background: var(--accent);
    color: var(--bg-dark);
}
.badge-hot {
    background: #FF6B35;
    color: white;
}
.product-card-actions {
    position: absolute;
    bottom: 12px;
    right: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    opacity: 0;
    transform: translateX(10px);
    transition: var(--transition);
}
.product-card:hover .product-card-actions {
    opacity: 1;
    transform: translateX(0);
}
.product-card-actions button, .product-card-actions a {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    color: var(--text-primary);
    font-size: 0.85rem;
    transition: var(--transition);
}
.product-card-actions button:hover, .product-card-actions a:hover {
    background: var(--primary);
    color: var(--text-white);
}
.product-card-body {
    padding: 18px;
}
.product-card-category {
    font-size: 0.75rem;
    color: var(--accent-dark);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}
.product-card-name {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 8px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.product-card-name a:hover { color: var(--primary); }
.product-card-price {
    display: flex;
    align-items: center;
    gap: 8px;
}
.price-current {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--primary);
}
.price-old {
    font-size: 0.85rem;
    color: var(--text-light);
    text-decoration: line-through;
}
.product-card-sold {
    margin-top: 10px;
    font-size: 0.78rem;
    color: var(--text-light);
}
.sold-bar {
    height: 5px;
    background: var(--border);
    border-radius: 5px;
    overflow: hidden;
    margin-top: 4px;
}
.sold-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--primary-light));
    border-radius: 5px;
    transition: width 0.6s ease;
}

/* === Promotion Banner === */
.promo-banner {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    min-height: 280px;
    display: flex;
    align-items: center;
    padding: 60px;
}
.promo-content {
    position: relative;
    z-index: 2;
    color: var(--text-white);
    max-width: 500px;
}
.promo-content h2 {
    font-family: var(--font-heading);
    font-size: 2.4rem;
    margin-bottom: 12px;
}
.promo-content p {
    font-size: 1.05rem;
    opacity: 0.9;
    margin-bottom: 24px;
}
.promo-pattern {
    position: absolute;
    right: -40px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 14rem;
    opacity: 0.08;
    color: white;
}

/* === Daily Deal === */
.daily-deal {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 24px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow);
    border: 2px solid var(--accent);
}
.daily-deal-left {
    display: flex;
    align-items: center;
    gap: 16px;
}
.daily-deal-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-dark);
    font-size: 1.4rem;
}
.daily-deal-text h3 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    color: var(--primary);
}
.daily-deal-text p {
    font-size: 0.88rem;
    color: var(--text-secondary);
}
.daily-deal-countdown {
    display: flex;
    gap: 8px;
}
.countdown-item {
    background: var(--primary);
    color: var(--text-white);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    text-align: center;
    min-width: 55px;
}
.countdown-item .number {
    display: block;
    font-size: 1.4rem;
    font-weight: 700;
}
.countdown-item .label {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    opacity: 0.8;
}

/* === Affiliate Banner === */
.affiliate-section {
    background: linear-gradient(135deg, var(--accent-dark), var(--accent));
    padding: 60px 0;
    text-align: center;
    color: var(--bg-dark);
}
.affiliate-section h2 {
    font-family: var(--font-heading);
    font-size: 2rem;
    margin-bottom: 12px;
}
.affiliate-section p {
    font-size: 1.05rem;
    max-width: 600px;
    margin: 0 auto 24px;
    opacity: 0.85;
}
.btn-dark {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: var(--bg-dark);
    color: var(--accent);
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
}
.btn-dark:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.3);
    color: var(--accent-light);
}

/* === Testimonials === */
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.testimonial-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
}
.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}
.testimonial-card::before {
    content: '"';
    font-family: var(--font-heading);
    font-size: 4rem;
    color: var(--accent);
    opacity: 0.3;
    position: absolute;
    top: 12px;
    left: 24px;
    line-height: 1;
}
.testimonial-stars {
    color: var(--accent);
    font-size: 0.85rem;
    margin-bottom: 12px;
}
.testimonial-text {
    font-size: 0.92rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}
.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}
.testimonial-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-weight: 700;
    font-size: 1rem;
}
.testimonial-name {
    font-weight: 600;
    font-size: 0.9rem;
}

/* === Policies === */
.policy-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.policy-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 28px 20px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}
.policy-card:hover { transform: translateY(-4px); }
.policy-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    background: linear-gradient(135deg, rgba(139,26,26,0.08), rgba(212,175,55,0.08));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: var(--primary);
}
.policy-card h4 {
    font-size: 0.92rem;
    margin-bottom: 6px;
}
.policy-card p {
    font-size: 0.8rem;
    color: var(--text-light);
}

/* === Footer === */
.site-footer {
    background: var(--bg-dark);
    color: rgba(255,255,255,0.8);
    padding-top: 0;
    position: relative;
}
.footer-wave {
    color: var(--bg-body);
    margin-bottom: -2px;
}
.footer-wave svg {
    display: block;
    width: 100%;
    height: 60px;
}
.site-footer .container { padding-top: 40px; }
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 14px;
}
.footer-logo .logo-icon { font-size: 1.5rem; }
.footer-desc {
    font-size: 0.88rem;
    line-height: 1.7;
    opacity: 0.75;
    margin-bottom: 18px;
}
.footer-social {
    display: flex;
    gap: 10px;
}
.footer-social a {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.08);
    border-radius: 50%;
    color: rgba(255,255,255,0.7);
    transition: var(--transition);
}
.footer-social a:hover {
    background: var(--accent);
    color: var(--bg-dark);
}
.footer-col h4 {
    font-family: var(--font-heading);
    font-size: 1rem;
    color: var(--accent);
    margin-bottom: 18px;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a {
    font-size: 0.88rem;
    opacity: 0.7;
}
.footer-col ul a:hover {
    opacity: 1;
    color: var(--accent);
}
.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.88rem;
    opacity: 0.7;
}
.footer-contact i {
    margin-top: 2px;
    color: var(--accent);
    width: 16px;
}
.footer-bottom {
    text-align: center;
    padding: 20px 0;
    font-size: 0.82rem;
    opacity: 0.5;
}

/* === Social Float === */
.social-float {
    position: fixed;
    right: 20px;
    bottom: 100px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 90;
}
.social-float-item {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--text-white);
    font-size: 1.2rem;
    box-shadow: 0 4px 14px rgba(0,0,0,0.2);
    transition: var(--transition);
    animation: socialPulse 2s ease infinite;
}
.social-float-item:hover {
    transform: scale(1.15);
}
.social-float-item.zalo { background: #0068FF; }
.social-float-item.facebook { background: #0084FF; }
.social-float-item.phone { background: #10B981; }
@keyframes socialPulse {
    0%, 100% { box-shadow: 0 4px 14px rgba(0,0,0,0.2); }
    50% { box-shadow: 0 4px 24px rgba(0,0,0,0.35); }
}

/* Scroll top */
.scroll-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: var(--text-white);
    border-radius: 50%;
    box-shadow: 0 4px 12px rgba(139,26,26,0.3);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 91;
}
.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}
.scroll-top:hover {
    background: var(--primary-light);
    transform: translateY(-3px);
    color: var(--text-white);
}

/* === Products Page === */
.products-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 30px;
    padding: 40px 0;
}
.sidebar-categories {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow);
    height: fit-content;
    position: sticky;
    top: 90px;
}
.sidebar-title {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--accent);
}
.category-tree-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    margin-bottom: 2px;
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    color: var(--text-secondary);
    transition: var(--transition);
}
.category-tree-item:hover, .category-tree-item.active {
    background: rgba(139,26,26,0.06);
    color: var(--primary);
}
.category-count {
    font-size: 0.75rem;
    background: var(--bg-section);
    padding: 2px 8px;
    border-radius: 50px;
    color: var(--text-light);
}
.products-filter-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    padding: 12px 20px;
    background: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.filter-tabs {
    display: flex;
    gap: 4px;
}
.filter-tab {
    padding: 8px 18px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
}
.filter-tab:hover, .filter-tab.active {
    background: var(--primary);
    color: var(--text-white);
}
.filter-sort select {
    padding: 8px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    background: var(--bg-card);
    outline: none;
}

/* Pagination */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-top: 40px;
}
.pagination a, .pagination span {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    font-weight: 500;
}
.pagination a {
    background: var(--bg-card);
    box-shadow: var(--shadow);
    color: var(--text-secondary);
}
.pagination a:hover { background: var(--primary); color: var(--text-white); }
.pagination .active {
    background: var(--primary);
    color: var(--text-white);
}

/* === Product Detail === */
.product-detail-section {
    padding: 40px 0 60px;
}
.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    background: var(--bg-card);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}
.product-gallery {
    border-radius: var(--radius);
    overflow: hidden;
    aspect-ratio: 1;
    background: var(--bg-section);
}
.product-gallery img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.product-info h1 {
    font-family: var(--font-heading);
    font-size: 2rem;
    margin-bottom: 12px;
}
.product-info .product-category-tag {
    display: inline-block;
    padding: 4px 14px;
    background: rgba(139,26,26,0.08);
    color: var(--primary);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 16px;
}
.product-price-large {
    display: flex;
    align-items: baseline;
    gap: 12px;
    margin-bottom: 20px;
}
.product-price-large .current {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
}
.product-price-large .old {
    font-size: 1.2rem;
    color: var(--text-light);
    text-decoration: line-through;
}
.product-desc {
    font-size: 0.92rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 24px;
}
.product-actions {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
}
.product-actions .btn-primary { flex: 1; justify-content: center; }
.product-meta {
    border-top: 1px solid var(--border);
    padding-top: 20px;
}
.product-meta-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.88rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}
.product-meta-item i {
    color: var(--accent);
    width: 18px;
    text-align: center;
}

/* === Forms === */
.form-group {
    margin-bottom: 20px;
}
.form-group label {
    display: block;
    font-size: 0.88rem;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--text-primary);
}
.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    background: var(--bg-card);
    transition: var(--transition);
    outline: none;
}
.form-control:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(212,175,55,0.15);
}
textarea.form-control { min-height: 120px; resize: vertical; }
.btn-submit {
    padding: 14px 36px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--text-white);
    border: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
}
.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(139,26,26,0.3);
}

/* === Responsive === */
@media (max-width: 1024px) {
    .product-grid { grid-template-columns: repeat(3, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
    .testimonial-grid { grid-template-columns: repeat(2, 1fr); }
    .policy-grid { grid-template-columns: repeat(2, 1fr); }
    .products-layout { grid-template-columns: 220px 1fr; }
}

@media (max-width: 768px) {
    .product-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .hero-section { height: 380px; }
    .hero-slide-content h1 { font-size: 2rem; }
    .section { padding: 50px 0; }
    .section-header h2 { font-size: 1.7rem; }
    .daily-deal { flex-direction: column; gap: 16px; text-align: center; }
    .promo-banner { padding: 40px 24px; min-height: 220px; }
    .promo-content h2 { font-size: 1.6rem; }
    .testimonial-grid { grid-template-columns: 1fr; }
    .policy-grid { grid-template-columns: 1fr 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .products-layout { grid-template-columns: 1fr; }
    .sidebar-categories { position: static; }
    .product-detail-grid { grid-template-columns: 1fr; gap: 24px; padding: 24px; }

    .main-nav {
        position: fixed;
        inset: 0;
        background: rgba(255,255,255,0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        gap: 8px;
        padding: 20px;
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        z-index: 999;
    }
    .main-nav.open { opacity: 1; visibility: visible; }
    .main-nav .nav-link { font-size: 1.1rem; padding: 14px 20px; }
    .mobile-menu-btn { display: flex; z-index: 1000; }
    .header-search input { width: 120px; }
}

@media (max-width: 480px) {
    .product-grid { grid-template-columns: 1fr; }
    .policy-grid { grid-template-columns: 1fr; }
    .header-search { display: none; }
}