*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --gold: #C5A55A;
    --gold-dark: #A8893E;
    --gold-light: #F5ECD7;
    --silver: #8C8C8C;
    --silver-light: #E8E8E8;
    --dark: #1A1A1A;
    --text: #3D3D3D;
    --text-light: #6B6B6B;
    --bg: #FAFAF8;
    --white: #FFFFFF;
    --border: #E8E5DE;
    --font-serif: 'Cormorant Garamond', Georgia, serif;
    --font-sans: 'Source Sans 3', -apple-system, BlinkMacSystemFont, sans-serif;
    --container: 1140px;
    --radius: 6px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.1);
    --transition: 0.25s ease;
}

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

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    background-color: var(--bg);
}

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

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

a {
    color: var(--gold-dark);
    text-decoration: none;
    transition: color var(--transition);
}

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

h1, h2, h3, h4 {
    font-family: var(--font-serif);
    color: var(--dark);
    line-height: 1.25;
    font-weight: 600;
}

h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 4vw, 2.4rem); }
h3 { font-size: clamp(1.2rem, 3vw, 1.5rem); }

p {
    margin-bottom: 1rem;
    color: var(--text);
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius);
    text-align: center;
    transition: all var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
    line-height: 1.4;
}

.btn-primary {
    background-color: var(--gold);
    color: var(--white);
    border-color: var(--gold);
}

.btn-primary:hover {
    background-color: var(--gold-dark);
    border-color: var(--gold-dark);
    color: var(--white);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: transparent;
    color: var(--dark);
    border-color: var(--border);
}

.btn-outline:hover {
    border-color: var(--gold);
    color: var(--gold-dark);
}

.btn-nav {
    background-color: var(--gold);
    color: var(--white);
    padding: 8px 20px;
    font-size: 0.85rem;
}

.btn-nav:hover {
    background-color: var(--gold-dark);
    color: var(--white);
}

.btn-gold {
    background: linear-gradient(135deg, var(--gold), var(--gold-dark));
    color: var(--white);
    border-color: var(--gold);
}

.btn-gold:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(197, 165, 90, 0.3);
    color: var(--white);
}

.btn-silver {
    background: linear-gradient(135deg, #999, #777);
    color: var(--white);
    border-color: #999;
}

.btn-silver:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(140, 140, 140, 0.3);
    color: var(--white);
}

.btn-lg {
    padding: 16px 40px;
    font-size: 1.05rem;
}

.header {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
    letter-spacing: -0.02em;
}

.logo:hover {
    color: var(--dark);
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
    transition: color var(--transition);
}

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

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.mobile-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--dark);
    transition: all var(--transition);
}

.hero {
    padding: 80px 0 90px;
    background: linear-gradient(160deg, var(--white) 0%, var(--gold-light) 100%);
    position: relative;
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(197, 165, 90, 0.12) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero-inner {
    max-width: 720px;
    position: relative;
    z-index: 1;
}

.hero-label {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--gold-dark);
    margin-bottom: 16px;
}

.hero h1 {
    margin-bottom: 20px;
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 32px;
    max-width: 600px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.trust-bar {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    padding: 24px 0;
}

.trust-items {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.trust-item svg {
    flex-shrink: 0;
    color: var(--gold);
}

.trust-item strong {
    display: block;
    font-size: 0.85rem;
    color: var(--dark);
}

.trust-item span {
    font-size: 0.78rem;
    color: var(--text-light);
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header p {
    color: var(--text-light);
    font-size: 1.05rem;
    max-width: 600px;
    margin: 12px auto 0;
}

.categories {
    padding: 80px 0;
}

.cat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.cat-card {
    display: block;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 24px;
    transition: all var(--transition);
    text-decoration: none;
}

.cat-card:hover {
    border-color: var(--gold);
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.cat-card--accent {
    background: linear-gradient(135deg, #FFF8E7, #FFF3D6);
    border-color: var(--gold-light);
}

.cat-icon {
    margin-bottom: 16px;
    color: var(--gold);
}

.cat-card h3 {
    font-size: 1.15rem;
    margin-bottom: 8px;
    color: var(--dark);
}

.cat-card p {
    font-size: 0.88rem;
    color: var(--text-light);
    margin-bottom: 12px;
    line-height: 1.5;
}

.cat-link {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--gold-dark);
}

.jewelry {
    padding: 80px 0;
    background: var(--white);
}

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

.jewelry-group {
    padding: 40px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.jewelry-group-title {
    font-size: 1.4rem;
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border);
}

.jewelry-group-title.gold {
    border-bottom-color: var(--gold);
    color: var(--gold-dark);
}

.jewelry-group-title.silver {
    border-bottom-color: var(--silver);
    color: #555;
}

.jewelry-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-bottom: 24px;
}

.jewelry-links a {
    display: block;
    padding: 10px 14px;
    font-size: 0.9rem;
    color: var(--text);
    background: var(--bg);
    border-radius: 4px;
    transition: all var(--transition);
    font-weight: 500;
}

.jewelry-links a:hover {
    background: var(--gold-light);
    color: var(--gold-dark);
}

.articles {
    padding: 80px 0;
    background: var(--bg);
}

.article {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px 48px;
    margin-bottom: 28px;
    transition: box-shadow var(--transition);
}

.article:hover {
    box-shadow: var(--shadow-md);
}

.article h3 {
    margin-bottom: 20px;
    font-size: 1.4rem;
    color: var(--dark);
}

.article p {
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--text);
}

.article p:last-child {
    margin-bottom: 0;
}

.article a {
    color: var(--gold-dark);
    text-decoration: underline;
    text-underline-offset: 2px;
}

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

.cta {
    padding: 80px 0;
    background: var(--dark);
}

.cta-inner {
    text-align: center;
    max-width: 640px;
    margin: 0 auto;
}

.cta h2 {
    color: var(--white);
    margin-bottom: 16px;
}

.cta p {
    color: #AAA;
    font-size: 1.05rem;
    margin-bottom: 32px;
    line-height: 1.7;
}

.footer {
    background: #111;
    color: #999;
    padding: 60px 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer h4 {
    color: var(--gold);
    font-size: 1rem;
    margin-bottom: 16px;
    font-family: var(--font-sans);
    font-weight: 700;
}

.footer p {
    color: #888;
    font-size: 0.88rem;
    line-height: 1.6;
    margin-bottom: 8px;
}

.footer ul {
    list-style: none;
}

.footer ul li {
    margin-bottom: 8px;
}

.footer ul a {
    color: #888;
    font-size: 0.88rem;
    transition: color var(--transition);
}

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

.footer a {
    color: #888;
}

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

.footer-social {
    margin-top: 16px;
}

.footer-social a {
    display: inline-block;
    padding: 6px 14px;
    border: 1px solid #333;
    border-radius: 4px;
    font-size: 0.82rem;
    color: #999;
    transition: all var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid #222;
    padding-top: 20px;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.82rem;
    color: #666;
}

@media (max-width: 1024px) {
    .cat-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px 24px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-md);
        gap: 16px;
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-toggle {
        display: flex;
    }

    .hero {
        padding: 50px 0 60px;
    }

    .hero-desc {
        font-size: 1rem;
    }

    .trust-items {
        grid-template-columns: 1fr;
        gap: 16px;
    }

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

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

    .jewelry-links {
        grid-template-columns: 1fr;
    }

    .article {
        padding: 28px 24px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

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

    .hero-actions .btn {
        text-align: center;
    }

    .jewelry-group {
        padding: 24px;
    }
}

.fade-up {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}