/* ============================================================
   CHRONOS — Premium Watch Gallery
   Main Stylesheet
   ============================================================ */

/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;0,800;1,400;1,500&family=Sarabun:wght@300;400;500;600;700&family=Outfit:wght@300;400;500;600;700&display=swap');

/* ---------- CSS Custom Properties ---------- */
:root {
    --gold: #c9a96e;
    --gold-light: #dfc08a;
    --gold-dark: #a88a50;
    --black: #0a0a0a;
    --black-light: #111111;
    --dark: #1a1a1a;
    --dark-card: #151515;
    --dark-border: #2a2a2a;
    --gray: #888888;
    --gray-light: #aaaaaa;
    --white: #f5f5f5;
    --white-pure: #ffffff;
    --glass-bg: rgba(20, 20, 20, 0.7);
    --glass-border: rgba(201, 169, 110, 0.15);
    --shadow-gold: 0 0 30px rgba(201, 169, 110, 0.1);
    --shadow-card: 0 10px 40px rgba(0, 0, 0, 0.4);
    --transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-fast: all 0.2s ease;
    --radius: 16px;
    --radius-sm: 10px;
    --radius-xs: 6px;
    --font-display: 'Playfair Display', serif;
    --font-body: 'Sarabun', sans-serif;
    --font-ui: 'Outfit', sans-serif;
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    background: var(--black);
    color: var(--white);
    line-height: 1.7;
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }
button { cursor: pointer; border: none; outline: none; font-family: var(--font-body); }

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--black); }
::-webkit-scrollbar-thumb {
    background: var(--gold-dark);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover { background: var(--gold); }

/* ---------- Utility ---------- */
.container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-ui);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 16px;
    padding: 8px 20px;
    background: rgba(201, 169, 110, 0.08);
    border: 1px solid rgba(201, 169, 110, 0.2);
    border-radius: 100px;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--white);
    margin-bottom: 12px;
    line-height: 1.2;
}

.section-title span { color: var(--gold); }

.section-subtitle {
    font-size: 1.05rem;
    color: var(--gray);
    max-width: 600px;
    line-height: 1.8;
}

/* ---------- Navbar ---------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 18px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(10, 10, 10, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    padding: 12px 0;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-icon {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 2px solid var(--gold);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--gold);
    position: relative;
}

.brand-icon::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 1px solid rgba(201, 169, 110, 0.3);
    animation: pulse-ring 2s ease-out infinite;
}

@keyframes pulse-ring {
    0% { transform: scale(1); opacity: 1; }
    100% { transform: scale(1.5); opacity: 0; }
}

.brand-text {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--white);
}

.brand-text span { color: var(--gold); }

.navbar-nav {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.navbar-nav a {
    font-family: var(--font-ui);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--gray-light);
    transition: var(--transition-fast);
    position: relative;
}

.navbar-nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--gold);
    transition: var(--transition);
}

.navbar-nav a:hover { color: var(--gold); }
.navbar-nav a:hover::after { width: 100%; }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    padding: 4px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--gold);
    border-radius: 2px;
    transition: var(--transition);
}

/* ---------- HERO Section ---------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(201, 169, 110, 0.06) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 50%, rgba(201, 169, 110, 0.04) 0%, transparent 60%),
        radial-gradient(circle at 50% 50%, rgba(20, 20, 20, 1) 0%, rgba(10, 10, 10, 1) 100%);
}

/* Animated clock decoration */
.hero-clock {
    position: absolute;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    border: 1px solid rgba(201, 169, 110, 0.08);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.hero-clock::before {
    content: '';
    position: absolute;
    width: 340px;
    height: 340px;
    border-radius: 50%;
    border: 1px solid rgba(201, 169, 110, 0.05);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.hero-clock::after {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    border: 1px dashed rgba(201, 169, 110, 0.04);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: rotate-slow 120s linear infinite;
}

@keyframes rotate-slow {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Clock hands */
.clock-hand {
    position: absolute;
    bottom: 50%;
    left: 50%;
    transform-origin: bottom center;
    border-radius: 4px;
}

.clock-hand.hour {
    width: 3px;
    height: 80px;
    background: rgba(201, 169, 110, 0.15);
    margin-left: -1.5px;
    animation: rotate-hour 43200s linear infinite;
}

.clock-hand.minute {
    width: 2px;
    height: 110px;
    background: rgba(201, 169, 110, 0.1);
    margin-left: -1px;
    animation: rotate-minute 3600s linear infinite;
}

.clock-hand.second {
    width: 1px;
    height: 130px;
    background: rgba(201, 169, 110, 0.2);
    margin-left: -0.5px;
    animation: rotate-second 60s linear infinite;
}

@keyframes rotate-hour { to { transform: rotate(360deg); } }
@keyframes rotate-minute { to { transform: rotate(360deg); } }
@keyframes rotate-second { to { transform: rotate(360deg); } }

/* Clock tick marks */
.clock-ticks {
    position: absolute;
    width: 380px;
    height: 380px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.clock-tick {
    position: absolute;
    width: 2px;
    height: 12px;
    background: rgba(201, 169, 110, 0.12);
    top: 0;
    left: 50%;
    margin-left: -1px;
    transform-origin: center 190px;
}

.clock-tick.major {
    height: 20px;
    width: 3px;
    margin-left: -1.5px;
    background: rgba(201, 169, 110, 0.2);
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 0 24px;
}

.hero-overline {
    font-family: var(--font-ui);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 6px;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 24px;
    opacity: 0;
    animation: fadeUp 0.8s ease forwards 0.3s;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.8rem, 7vw, 5.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    opacity: 0;
    animation: fadeUp 0.8s ease forwards 0.5s;
}

.hero-title .line1 { display: block; color: var(--white-pure); }
.hero-title .line2 {
    display: block;
    background: linear-gradient(135deg, var(--gold-light), var(--gold), var(--gold-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 1.15rem;
    color: var(--gray);
    max-width: 550px;
    margin: 0 auto 40px;
    line-height: 1.9;
    opacity: 0;
    animation: fadeUp 0.8s ease forwards 0.7s;
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 16px 40px;
    font-family: var(--font-ui);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--black);
    background: linear-gradient(135deg, var(--gold-light), var(--gold));
    border-radius: 100px;
    transition: var(--transition);
    opacity: 0;
    animation: fadeUp 0.8s ease forwards 0.9s;
    box-shadow: 0 4px 30px rgba(201, 169, 110, 0.3);
}

.hero-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 40px rgba(201, 169, 110, 0.45);
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--gray);
    font-family: var(--font-ui);
    font-size: 0.7rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    opacity: 0;
    animation: fadeUp 0.8s ease forwards 1.2s;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--gold), transparent);
    animation: scroll-pulse 2s ease-in-out infinite;
}

@keyframes scroll-pulse {
    0%, 100% { opacity: 1; transform: scaleY(1); }
    50% { opacity: 0.3; transform: scaleY(0.6); }
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ---------- Stats Bar ---------- */
.stats-bar {
    background: var(--dark);
    border-top: 1px solid var(--dark-border);
    border-bottom: 1px solid var(--dark-border);
    padding: 40px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    text-align: center;
}

.stat-item {
    padding: 16px;
    position: relative;
}

.stat-item:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0;
    top: 20%;
    height: 60%;
    width: 1px;
    background: var(--dark-border);
}

.stat-number {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--gold);
    margin-bottom: 4px;
}

.stat-label {
    font-family: var(--font-ui);
    font-size: 0.8rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--gray);
}

/* ---------- Products Section ---------- */
.products-section {
    padding: 100px 0;
}

.products-header {
    text-align: center;
    margin-bottom: 60px;
}

/* Filter Tabs */
.filter-tabs {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.filter-tab {
    padding: 10px 28px;
    font-family: var(--font-ui);
    font-size: 0.82rem;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--gray);
    background: transparent;
    border: 1px solid var(--dark-border);
    border-radius: 100px;
    transition: var(--transition);
}

.filter-tab:hover {
    color: var(--gold);
    border-color: var(--gold-dark);
}

.filter-tab.active {
    color: var(--black);
    background: var(--gold);
    border-color: var(--gold);
    font-weight: 600;
}

/* Product Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 28px;
}

/* Product Card */
.product-card {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
}

.product-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius);
    padding: 1px;
    background: linear-gradient(135deg, rgba(201,169,110,0) 0%, rgba(201,169,110,0.3) 50%, rgba(201,169,110,0) 100%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-gold), var(--shadow-card);
    border-color: rgba(201, 169, 110, 0.2);
}

.product-card:hover::before { opacity: 1; }

.card-image {
    position: relative;
    height: 280px;
    background: linear-gradient(135deg, #0d0d0d, #1a1a1a);
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.product-card:hover .card-image img {
    transform: scale(1.06);
}

.card-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    font-family: var(--font-ui);
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    border-radius: 100px;
    backdrop-filter: blur(10px);
}

.card-badge.analog {
    background: rgba(201, 169, 110, 0.15);
    color: var(--gold);
    border: 1px solid rgba(201, 169, 110, 0.25);
}

.card-badge.digital {
    background: rgba(100, 180, 255, 0.15);
    color: #64b4ff;
    border: 1px solid rgba(100, 180, 255, 0.25);
}

.card-badge.both {
    background: rgba(150, 120, 255, 0.15);
    color: #9678ff;
    border: 1px solid rgba(150, 120, 255, 0.25);
}

.card-featured {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(201, 169, 110, 0.15);
    border: 1px solid rgba(201, 169, 110, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    color: var(--gold);
    backdrop-filter: blur(10px);
}

.card-body {
    padding: 24px;
}

.card-brand {
    font-family: var(--font-ui);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 8px;
}

.card-name {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 12px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-desc {
    font-size: 0.88rem;
    color: var(--gray);
    line-height: 1.7;
    margin-bottom: 20px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--dark-border);
}

.card-price {
    font-family: var(--font-ui);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gold);
}

.card-price small {
    font-size: 0.7rem;
    font-weight: 400;
    color: var(--gray);
    margin-left: 4px;
}

.card-view-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    font-family: var(--font-ui);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--gold);
    background: rgba(201, 169, 110, 0.08);
    border: 1px solid rgba(201, 169, 110, 0.2);
    border-radius: 100px;
    transition: var(--transition-fast);
}

.card-view-btn:hover {
    background: var(--gold);
    color: var(--black);
    border-color: var(--gold);
}

/* No products */
.no-products {
    grid-column: 1 / -1;
    text-align: center;
    padding: 80px 20px;
    color: var(--gray);
}

.no-products-icon {
    font-size: 3rem;
    margin-bottom: 16px;
    opacity: 0.4;
}

/* Placeholder image */
.placeholder-img {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3.5rem;
    color: rgba(201, 169, 110, 0.15);
    background: linear-gradient(135deg, #0d0d0d, #1a1a1a);
}

/* ---------- Product Modal ---------- */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

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

.modal-content {
    background: var(--dark);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius);
    max-width: 900px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    transform: translateY(30px) scale(0.95);
    transition: var(--transition);
    position: relative;
}

.modal-overlay.active .modal-content {
    transform: translateY(0) scale(1);
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--white);
    z-index: 10;
    transition: var(--transition-fast);
    cursor: pointer;
}

.modal-close:hover {
    background: rgba(201, 169, 110, 0.2);
    color: var(--gold);
}

.modal-image {
    width: 100%;
    height: 400px;
    overflow: hidden;
    border-radius: var(--radius) var(--radius) 0 0;
    position: relative;
    background: linear-gradient(135deg, #0d0d0d, #1a1a1a);
}

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

.modal-body {
    padding: 40px;
}

.modal-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 16px;
    font-family: var(--font-ui);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    border-radius: 100px;
    margin-bottom: 16px;
}

.modal-brand {
    font-family: var(--font-ui);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 8px;
}

.modal-name {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 16px;
    line-height: 1.3;
}

.modal-price-box {
    display: inline-flex;
    align-items: baseline;
    gap: 8px;
    padding: 12px 24px;
    background: rgba(201, 169, 110, 0.08);
    border: 1px solid rgba(201, 169, 110, 0.2);
    border-radius: var(--radius-sm);
    margin-bottom: 24px;
}

.modal-price {
    font-family: var(--font-ui);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--gold);
}

.modal-price-label {
    font-size: 0.8rem;
    color: var(--gray);
}

.modal-desc {
    font-size: 1rem;
    color: var(--gray-light);
    line-height: 1.9;
    margin-bottom: 32px;
}

.modal-features-title {
    font-family: var(--font-ui);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 16px;
}

.modal-features {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 10px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--dark-border);
    border-radius: var(--radius-xs);
    font-size: 0.88rem;
    color: var(--gray-light);
}

.feature-icon {
    color: var(--gold);
    font-size: 0.75rem;
}

/* ---------- Footer ---------- */
.footer {
    background: var(--dark);
    border-top: 1px solid var(--dark-border);
    padding: 60px 0 30px;
}

.footer-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 24px;
}

.footer-brand {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
}

.footer-brand span { color: var(--gold); }

.footer-tagline {
    font-size: 0.9rem;
    color: var(--gray);
    margin-top: 4px;
}

.footer-links {
    display: flex;
    gap: 32px;
    list-style: none;
}

.footer-links a {
    font-family: var(--font-ui);
    font-size: 0.82rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--gray);
    transition: var(--transition-fast);
}

.footer-links a:hover { color: var(--gold); }

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--dark-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-copy {
    font-size: 0.8rem;
    color: var(--gray);
}

.footer-copy a {
    color: var(--gold);
    transition: var(--transition-fast);
}

.footer-copy a:hover { color: var(--gold-light); }

/* ---------- Scroll Animations ---------- */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ---------- Loading Spinner ---------- */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px;
    grid-column: 1 / -1;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--dark-border);
    border-top-color: var(--gold);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ---------- Responsive ---------- */
@media (max-width: 992px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .products-grid { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
    .modal-image { height: 300px; }
    .modal-body { padding: 28px; }
}

@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    
    .navbar-nav {
        position: fixed;
        top: 0;
        right: -300px;
        width: 280px;
        height: 100vh;
        flex-direction: column;
        background: var(--dark);
        border-left: 1px solid var(--dark-border);
        padding: 80px 32px 32px;
        gap: 24px;
        transition: var(--transition);
        z-index: 9998;
    }

    .navbar-nav.open { right: 0; }

    .hero-clock { width: 300px; height: 300px; }
    .hero-clock::after { width: 380px; height: 380px; }
    .clock-ticks { width: 280px; height: 280px; }
    .clock-tick { transform-origin: center 140px; }

    .stats-grid { grid-template-columns: repeat(2, 1fr); }

    .stat-item:not(:last-child)::after { display: none; }

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

    .modal-image { height: 220px; }
    .modal-body { padding: 20px; }
    .modal-name { font-size: 1.3rem; }
    .modal-features { grid-template-columns: 1fr; }

    .footer-top { flex-direction: column; text-align: center; }
    .footer-links { flex-wrap: wrap; justify-content: center; }
    .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 2.2rem; }
    .hero-desc { font-size: 1rem; }
    .filter-tabs { gap: 6px; }
    .filter-tab { padding: 8px 18px; font-size: 0.75rem; }
    .card-image { height: 220px; }
}