/* Luxury Marketplace CSS - Premium Design System */

/* Import Premium Fonts */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;500;600;700;800;900&family=Inter:wght@300;400;500;600;700;800&display=swap');

/* CSS Variables - Luxury Color Palette */
:root {
    --color-charcoal: #1a1a1a;
    --color-soft-black: #2d2d2d;
    --color-platinum: #e5e5e5;
    --color-champagne: #f3e5d5;
    --color-gold: #d4af37;
    --color-rose-gold: #b76e79;
    --color-white: #ffffff;
    --color-gray-light: #f8f8f8;
    --color-gray-medium: #cccccc;
    --color-success: #28a745;
    --color-error: #dc3545;
    --color-warning: #ffc107;

    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;

    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 8px 16px rgba(0,0,0,0.12);
    --shadow-lg: 0 16px 32px rgba(0,0,0,0.16);
    --shadow-xl: 0 24px 48px rgba(0,0,0,0.2);
    --shadow-gold: 0 8px 32px rgba(212, 175, 55, 0.2);

    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 16px;
    --border-radius-sm: 8px;
}

/* Global Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background: var(--color-white);
    color: var(--color-charcoal);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
}

/* Navigation */
.navbar {
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid rgba(212, 175, 55, 0.15);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(20px) saturate(180%);
    box-shadow: 0 2px 20px rgba(0,0,0,0.04);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.75rem 2rem;
}

.nav-brand h1 {
    font-size: 1.875rem;
    margin: 0;
    font-weight: 800;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, #1a1a1a 0%, #d4af37 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
}

.nav-brand h1::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 30px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-gold), transparent);
    border-radius: 2px;
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    font-size: 0.9375rem;
    font-weight: 600;
    position: relative;
    padding: 0.625rem 1rem;
    letter-spacing: 0.02em;
    transition: var(--transition-fast);
    color: var(--color-charcoal);
}

.nav-menu a:hover {
    color: var(--color-gold);
    transform: translateY(-1px);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-menu a:hover::after {
    width: 100%;
}

.nav-menu a.active {
    color: var(--color-gold);
    font-weight: 700;
}

.nav-menu a.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--color-charcoal);
    border-radius: 2px;
    transition: var(--transition);
}

@media (max-width: 968px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-white);
        flex-direction: column;
        padding: 2rem;
        box-shadow: var(--shadow-lg);
    }

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

    .nav-toggle {
        display: flex;
    }
}

/* Hero Section */
.hero {
    background: linear-gradient(165deg, #0f0f0f 0%, #1a1a1a 40%, #2d2d2d 100%);
    color: var(--color-white);
    padding: 10rem 0 8rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(212, 175, 55, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(212, 175, 55, 0.06) 0%, transparent 50%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.3), transparent);
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: clamp(3.5rem, 7vw, 6rem);
    margin-bottom: 1.5rem;
    letter-spacing: -0.04em;
    font-weight: 800;
    line-height: 1.1;
    background: linear-gradient(180deg, #ffffff 0%, #e5e5e5 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 2px 40px rgba(212, 175, 55, 0.15);
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2.5vw, 1.375rem);
    margin-bottom: 3.5rem;
    color: rgba(243, 229, 213, 0.9);
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 400;
    letter-spacing: 0.01em;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    .hero {
        padding: 4rem 0;
    }
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    text-align: center;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    letter-spacing: 0.03em;
    font-family: var(--font-primary);
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    transform: translate(-50%, -50%);
    transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1), height 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn:hover::before {
    width: 400px;
    height: 400px;
}

.btn-primary {
    background: linear-gradient(135deg, #d4af37 0%, #c9a227 50%, #bf9518 100%);
    color: var(--color-white);
    box-shadow: 0 4px 16px rgba(212, 175, 55, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(212, 175, 55, 0.4);
}

.btn-primary:active {
    transform: translateY(-1px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: var(--color-white);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.95);
    color: var(--color-charcoal);
    border-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 8px 32px rgba(255, 255, 255, 0.2);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--color-gold);
    color: var(--color-gold);
}

.btn-outline:hover {
    background: var(--color-gold);
    color: var(--color-white);
    box-shadow: 0 4px 20px rgba(212, 175, 55, 0.3);
    transform: translateY(-2px);
}

.btn-admin {
    background: linear-gradient(135deg, #6a11cb, #2575fc);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 8px;
}

.btn-large {
    padding: 1.25rem 3rem;
    font-size: 1.125rem;
}

.btn-small {
    padding: 0.5rem 1.5rem;
    font-size: 0.875rem;
}

.btn-full {
    width: 100%;
}

.btn-text {
    background: transparent;
    padding: 0;
    color: var(--color-gold);
    font-weight: 600;
}

.btn-text:hover {
    color: var(--color-charcoal);
}

/* Sections */
section {
    padding: 7rem 0;
}

.section-title {
    text-align: center;
    margin-bottom: 4rem;
    position: relative;
    font-size: clamp(2.25rem, 4vw, 3.25rem);
    font-weight: 700;
    letter-spacing: -0.03em;
}

.section-title::before {
    content: '';
    position: absolute;
    top: -1.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-gold), var(--color-champagne));
    border-radius: 2px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -1.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
}

@media (max-width: 768px) {
    section {
        padding: 3rem 0;
    }
}

/* Stores Grid */
.stores-section {
    background: var(--color-gray-light);
}

.stores-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.store-card {
    background: linear-gradient(135deg, #ffffff 0%, #fafafa 100%);
    padding: 3.5rem 2.5rem;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid rgba(212, 175, 55, 0.1);
    position: relative;
    overflow: hidden;
}

.store-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-gold), var(--color-champagne), var(--color-gold));
    transform: scaleX(0);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.store-card:hover::before {
    transform: scaleX(1);
}

.store-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
    border-color: rgba(212, 175, 55, 0.3);
}

.store-icon {
    font-size: 4.5rem;
    margin-bottom: 1.75rem;
    filter: drop-shadow(0 4px 12px rgba(212, 175, 55, 0.15));
}

.store-card h3 {
    font-size: 1.875rem;
    margin-bottom: 1rem;
    font-weight: 700;
    color: var(--color-charcoal);
    letter-spacing: -0.02em;
}

.store-card p {
    color: #555;
    margin-bottom: 2.25rem;
    min-height: 60px;
    line-height: 1.7;
    font-size: 0.9375rem;
}

/* Products Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}

.product-card {
    background: var(--color-white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    transition: var(--transition);
    border: 1px solid rgba(229, 229, 229, 0.6);
    position: relative;
}

.product-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: var(--border-radius);
    box-shadow: 0 12px 40px rgba(212, 175, 55, 0.15);
    opacity: 0;
    transition: opacity 0.4s;
    pointer-events: none;
}

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

.product-card:hover {
    transform: translateY(-8px);
    border-color: rgba(212, 175, 55, 0.2);
}

.product-image {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    background: linear-gradient(135deg, #f8f8f8 0%, #fafafa 100%);
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.product-info {
    padding: 1.5rem;
}

.product-category {
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-gold);
    font-weight: 700;
    margin-bottom: 0.625rem;
    display: inline-block;
}

.product-name {
    font-size: 1.125rem;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    font-weight: 600;
    line-height: 1.4;
    color: var(--color-charcoal);
}

.product-price {
    font-size: 1.625rem;
    font-weight: 700;
    background: linear-gradient(135deg, #1a1a1a 0%, #d4af37 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1.125rem;
    font-family: var(--font-display);
}

/* Badges */
.badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.5rem 1.125rem;
    border-radius: 24px;
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

.badge-ai {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.95), rgba(118, 75, 162, 0.95));
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Features Section */
.features-section {
    background: var(--color-gray-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--color-white);
    padding: 2.5rem 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.feature-card p {
    color: #666;
    font-size: 0.95rem;
}

/* Footer */
.footer {
    background: linear-gradient(180deg, #1a1a1a 0%, #0f0f0f 100%);
    color: rgba(229, 229, 229, 0.8);
    padding: 5rem 0 2rem;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.3), transparent);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3.5rem;
    margin-bottom: 3.5rem;
}

.footer-section h3,
.footer-section h4 {
    color: var(--color-white);
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
    font-weight: 700;
}

.footer-section a {
    color: rgba(229, 229, 229, 0.7);
    transition: var(--transition-fast);
}

.footer-section a:hover {
    color: var(--color-gold);
    transform: translateX(4px);
    display: inline-block;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 0.875rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 2rem;
    text-align: center;
    color: rgba(229, 229, 229, 0.5);
    font-size: 0.875rem;
}

/* Auth Page */
.auth-page {
    background: linear-gradient(135deg, var(--color-charcoal), var(--color-soft-black));
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.auth-container {
    width: 100%;
    max-width: 480px;
}

.auth-card {
    background: var(--color-white);
    border-radius: var(--border-radius);
    padding: 3rem;
    box-shadow: var(--shadow-xl);
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header h1 {
    background: linear-gradient(135deg, var(--color-charcoal), var(--color-gold));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

.auth-header p {
    color: #666;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--color-charcoal);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--color-platinum);
    border-radius: 8px;
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-gold);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

.auth-footer {
    text-align: center;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--color-platinum);
}

.auth-footer p {
    margin-bottom: 0.5rem;
}

.auth-footer a {
    color: var(--color-gold);
    font-weight: 600;
}

.auth-footer a:hover {
    text-decoration: underline;
}

/* Alerts */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.alert-error {
    background: #fee;
    color: var(--color-error);
    border: 1px solid var(--color-error);
}

.alert-success {
    background: #efe;
    color: var(--color-success);
    border: 1px solid var(--color-success);
}

.alert-warning {
    background: #ffeaa7;
    color: #856404;
    border: 1px solid var(--color-warning);
}

.alert-info {
    background: #e3f2fd;
    color: #0277bd;
    border: 1px solid #0277bd;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

[data-aos="fade-up"] {
    animation: fadeInUp 0.6s ease-out;
}

/* Responsive Utilities */
@media (max-width: 768px) {
    .stores-grid,
    .products-grid,
    .features-grid {
        grid-template-columns: 1fr;
    }

    .section-header {
        flex-direction: column;
        gap: 1rem;
    }
}

/* Loading Spinner */
.spinner {
    border: 3px solid var(--color-platinum);
    border-top: 3px solid var(--color-gold);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }