/* ========================================
   Global Styles & CSS Variables
   ======================================== */
:root {
    /* Colors - Binance Inspired */
    --primary-color: #F0B90B;
    --primary-hover: #FCD535;
    --primary-dark: #C99C0A;
    --secondary-color: #181A20;
    --background-dark: #0B0E11;
    --background-light: #1E2329;
    --card-bg: #1E2329;
    --border-color: #2B3139;
    --text-primary: #EAECEF;
    --text-secondary: #848E9C;
    --text-muted: #5E6673;
    --success-color: #0ECB81;
    --error-color: #F6465D;
    --warning-color: #F0B90B;
    --info-color: #3772FF;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 12px 36px rgba(0, 0, 0, 0.25);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--background-dark);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

button {
    border: none;
    cursor: pointer;
    font-family: inherit;
    transition: var(--transition-base);
}

input, select, textarea {
    font-family: inherit;
    outline: none;
}

/* ========================================
   Container & Layout
   ======================================== */
.container-fluid {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ========================================
   Header
   ======================================== */
.header {
    background-color: var(--secondary-color);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-lg);
}

.logo-section {
    flex-shrink: 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.logo i {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.main-nav {
    display: flex;
    gap: var(--spacing-lg);
    flex: 1;
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition-base);
}

.nav-link:hover {
    color: var(--primary-color);
}

.header-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.theme-toggle {
    background-color: transparent;
    color: var(--text-secondary);
    padding: 0.5rem;
    border-radius: var(--radius-md);
    transition: var(--transition-base);
}

.theme-toggle:hover {
    color: var(--primary-color);
}

.language-selector {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.5rem 0.75rem;
    cursor: pointer;
    transition: var(--transition-base);
}

.language-selector:hover {
    border-color: var(--primary-color);
}

.auth-links-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.btn {
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 1rem;
    text-align: center;
    transition: var(--transition-base);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--secondary-color);
}

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

.btn-outline {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

.btn-text {
    background-color: transparent;
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
}

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

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-block {
    width: 100%;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.btn-icon {
    background-color: transparent;
    color: var(--text-secondary);
    padding: 0.5rem;
    border-radius: var(--radius-md);
    transition: var(--transition-base);
}

.btn-icon:hover {
    color: var(--primary-color);
}

.mobile-menu-toggle {
    display: none;
    background-color: transparent;
    color: var(--text-primary);
    flex-direction: column;
    gap: 0.25rem;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 2px;
    background-color: currentColor;
    transition: var(--transition-base);
}

/* ========================================
   New Listings Carousel
   ======================================== */
.new-listings-carousel {
    background-color: var(--secondary-color);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
}

.carousel-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.carousel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.carousel-label {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}

.carousel-controls {
    display: flex;
    gap: var(--spacing-xs);
}

.carousel-btn {
    background-color: transparent;
    color: var(--text-secondary);
    padding: 0.5rem;
    border-radius: var(--radius-md);
    transition: var(--transition-base);
}

.carousel-btn:hover {
    color: var(--primary-color);
}

.carousel-wrapper {
    overflow-x: auto;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
}

.carousel-track {
    display: flex;
    gap: var(--spacing-md);
    min-width: min-content;
}

.carousel-item {
    flex-shrink: 0;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    min-width: 200px;
    transition: var(--transition-base);
}

.carousel-item:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

/* ========================================
   Hero Section
   ======================================== */
.hero-premium {
    position: relative;
    padding: var(--spacing-xl) 0;
    background-color: var(--background-dark);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
}

.animated-grid {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(0deg, transparent 24%, rgba(240, 185, 11, 0.05) 25%, rgba(240, 185, 11, 0.05) 26%, transparent 27%, transparent 74%, rgba(240, 185, 11, 0.05) 75%, rgba(240, 185, 11, 0.05) 76%, transparent 77%, transparent),
        linear-gradient(90deg, transparent 24%, rgba(240, 185, 11, 0.05) 25%, rgba(240, 185, 11, 0.05) 26%, transparent 27%, transparent 74%, rgba(240, 185, 11, 0.05) 75%, rgba(240, 185, 11, 0.05) 76%, transparent 77%, transparent);
    background-size: 50px 50px;
    opacity: 0.1;
}

.floating-shapes {
    position: absolute;
    width: 100%;
    height: 100%;
}

.shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
}

.shape-1 {
    width: 300px;
    height: 300px;
    background-color: var(--primary-color);
    top: -150px;
    right: -150px;
}

.shape-2 {
    width: 200px;
    height: 200px;
    background-color: var(--info-color);
    bottom: -100px;
    left: -100px;
}

.shape-3 {
    width: 150px;
    height: 150px;
    background-color: var(--success-color);
    top: 50%;
    left: 10%;
}

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

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    line-height: 1.2;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.featured-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    max-width: 500px;
}

.featured-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.featured-header h3 {
    font-size: 1rem;
    color: var(--text-primary);
}

.badge {
    background-color: var(--primary-color);
    color: var(--secondary-color);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

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

.featured-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.crypto-icon {
    font-size: 2rem;
    color: var(--primary-color);
}

.featured-left h4 {
    font-size: 1.1rem;
    color: var(--text-primary);
}

.pair {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.featured-right {
    text-align: right;
}

.price-display {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    margin-bottom: var(--spacing-md);
}

.price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.change {
    font-size: 0.9rem;
    font-weight: 600;
}

.change.positive {
    color: var(--success-color);
}

.change.negative {
    color: var(--error-color);
}

/* ========================================
   Stats Section
   ======================================== */
.stats-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--background-dark);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.stat-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    transition: var(--transition-base);
}

.stat-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.stat-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    flex-shrink: 0;
}

.stat-content h3 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.stat-content p {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* ========================================
   Section Header
   ======================================== */
.section-header {
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* ========================================
   Markets Section
   ======================================== */
.markets-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--background-dark);
}

.market-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.search-box {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    flex: 1;
    max-width: 400px;
}

.search-box i {
    color: var(--text-muted);
}

.search-box input {
    background-color: transparent;
    border: none;
    color: var(--text-primary);
    width: 100%;
}

.search-box input::placeholder {
    color: var(--text-muted);
}

.filter-controls {
    display: flex;
    gap: var(--spacing-sm);
}

.filter-select {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    cursor: pointer;
    transition: var(--transition-base);
}

.filter-select:hover {
    border-color: var(--primary-color);
}

.market-table-container {
    overflow-x: auto;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
}

.market-table {
    width: 100%;
    border-collapse: collapse;
}

.market-table thead {
    background-color: var(--background-light);
    border-bottom: 1px solid var(--border-color);
}

.market-table th {
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.market-table td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

.market-table tbody tr:hover {
    background-color: var(--background-light);
}

/* ========================================
   Trading Section
   ======================================== */
.trading-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--background-dark);
}

.trading-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.trading-option-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: var(--transition-base);
}

.trading-option-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.card-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.trading-option-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.trading-option-card p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    font-size: 0.95rem;
}

.features-list {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.features-list li {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.features-list i {
    color: var(--success-color);
}

/* ========================================
   Chart Section
   ======================================== */
.chart-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--background-dark);
}

.chart-container {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.chart-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    gap: var(--spacing-md);
}

.timeframe-buttons {
    display: flex;
    gap: var(--spacing-xs);
}

.timeframe-btn {
    background-color: var(--background-light);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-base);
}

.timeframe-btn:hover,
.timeframe-btn.active {
    background-color: var(--primary-color);
    color: var(--secondary-color);
    border-color: var(--primary-color);
}

.chart-select {
    background-color: var(--background-light);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
}

/* ========================================
   Features Section
   ======================================== */
.features-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--background-dark);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.feature-item {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    transition: var(--transition-base);
}

.feature-item:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.feature-item h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.feature-item p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ========================================
   CTA Section
   ======================================== */
.cta-section {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--secondary-color), var(--background-light));
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.cta-content {
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.cta-content p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background-color: var(--secondary-color);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-column h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

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

.footer-column li {
    margin-bottom: 0.75rem;
}

.footer-column a {
    color: var(--text-secondary);
    transition: var(--transition-base);
}

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

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--background-light);
    border-radius: 50%;
    transition: var(--transition-base);
}

.social-links a:hover {
    background-color: var(--primary-color);
    color: var(--secondary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ========================================
   Loader
   ======================================== */
.loader {
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

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

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .market-toolbar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-box {
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .main-nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .header-wrapper {
        gap: var(--spacing-sm);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .hero-cta .btn {
        width: 100%;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .trading-cards-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .cta-buttons .btn {
        width: 100%;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .header-controls {
        gap: var(--spacing-xs);
    }
    
    .auth-links-group {
        gap: 0.25rem;
    }
    
    .btn {
        padding: 0.4rem 0.8rem;
        font-size: 0.85rem;
    }
    
    .hero-title {
        font-size: 1.5rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section-header h2 {
        font-size: 1.5rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-card {
        flex-direction: column;
        text-align: center;
    }
    
    .featured-card {
        max-width: 100%;
    }
    
    .featured-content {
        flex-direction: column;
        text-align: center;
    }
    
    .featured-right {
        text-align: center;
    }
    
    .chart-controls {
        flex-direction: column;
    }
    
    .timeframe-buttons {
        width: 100%;
        overflow-x: auto;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}