/* ============================================
   MODERN CRYPTO TRADING DASHBOARD STYLES
   Inspired by Binance, CoinGecko, TradingView
   ============================================ */

:root {
    /* Цветовая палитра в стиле топовых криптосайтов */
    --bg-primary: #0B0E14;
    --bg-secondary: #131722;
    --bg-tertiary: #1A1E2E;
    --bg-card: rgba(26, 30, 46, 0.8);
    --bg-glass: rgba(26, 30, 46, 0.6);
    
    /* Акцентные цвета */
    --accent-primary: #0ECB81; /* Green (Binance style) */
    --accent-secondary: #F6465D; /* Red */
    --accent-blue: #2962FF;
    --accent-purple: #8B5CF6;
    --accent-cyan: #00D9FF;
    
    /* Градиенты */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-green: linear-gradient(135deg, #0ECB81 0%, #089660 100%);
    --gradient-red: linear-gradient(135deg, #F6465D 0%, #D32F2F 100%);
    --gradient-blue: linear-gradient(135deg, #2962FF 0%, #1565C0 100%);
    --gradient-dark: linear-gradient(180deg, #131722 0%, #0B0E14 100%);
    
    /* Текст */
    --text-primary: #FFFFFF;
    --text-secondary: #B7BDC6;
    --text-tertiary: #848E9C;
    
    /* Границы и тени */
    --border-color: rgba(255, 255, 255, 0.1);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(14, 203, 129, 0.3);
    
    /* Анимации */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ============================================
   BASE STYLES
   ============================================ */

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
                 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    background: var(--bg-primary);
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(14, 203, 129, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(41, 98, 255, 0.05) 0%, transparent 50%);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* ============================================
   GLASSMORPHISM CARDS
   ============================================ */

.glass-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.1), 
        transparent);
}

.glass-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    border-color: rgba(14, 203, 129, 0.3);
}

/* ============================================
   MODERN HEADER
   ============================================ */

.modern-header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 1.5rem 2rem;
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1800px;
    margin: 0 auto;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-green);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.logo-badge {
    background: var(--gradient-green);
    color: var(--bg-primary);
    padding: 0.25rem 0.75rem;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ============================================
   PRICE CARDS
   ============================================ */

.price-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.price-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--gradient-green);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

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

.price-symbol {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.price-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    font-variant-numeric: tabular-nums;
}

.price-change {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: 8px;
}

.price-change.positive {
    background: rgba(14, 203, 129, 0.15);
    color: var(--accent-primary);
}

.price-change.negative {
    background: rgba(246, 70, 93, 0.15);
    color: var(--accent-secondary);
}

/* ============================================
   STATS GRID
   ============================================ */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem;
    transition: all var(--transition-normal);
}

.stat-item:hover {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn-modern {
    background: var(--gradient-green);
    border: none;
    border-radius: 10px;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    color: var(--bg-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.btn-modern::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-modern:hover::before {
    width: 300px;
    height: 300px;
}

.btn-modern:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md), var(--shadow-glow);
}

.btn-modern:active {
    transform: translateY(0);
}

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

.btn-outline:hover {
    background: rgba(14, 203, 129, 0.1);
}

/* ============================================
   SIGNALS & ALERTS
   ============================================ */

.signal-item {
    background: var(--bg-card);
    border-left: 3px solid var(--accent-primary);
    border-radius: 12px;
    padding: 1rem;
    margin-bottom: 0.75rem;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.signal-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--gradient-green);
    animation: pulse-glow 2s infinite;
}

@keyframes pulse-glow {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.signal-item:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
}

.signal-type {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.signal-type.long {
    background: rgba(14, 203, 129, 0.2);
    color: var(--accent-primary);
}

.signal-type.short {
    background: rgba(246, 70, 93, 0.2);
    color: var(--accent-secondary);
}

/* ============================================
   CHARTS & GRAPHS
   ============================================ */

.chart-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-md);
}

.chart-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ============================================
   LOADING & ANIMATIONS
   ============================================ */

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-up {
    animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   TABS
   ============================================ */

.modern-tabs {
    display: flex;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
    overflow-x: auto;
}

.tab-item {
    padding: 0.75rem 1.5rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-weight: 500;
    position: relative;
    transition: all var(--transition-fast);
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
}

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

.tab-item.active {
    color: var(--accent-primary);
    border-bottom-color: var(--accent-primary);
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .price-value {
        font-size: 1.5rem;
    }
    
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }
}

/* ============================================
   SCROLLBAR STYLING
   ============================================ */

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #089660;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.text-gradient {
    background: var(--gradient-green);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.glow-effect {
    box-shadow: var(--shadow-glow);
}

.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

/* ============================================
   DASHBOARD SPECIFIC
   ============================================ */

.dashboard-container {
    max-width: 1800px;
    margin: 0 auto;
    padding: 2rem;
}

.section-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.section-title::before {
    content: '';
    width: 4px;
    height: 24px;
    background: var(--gradient-green);
    border-radius: 2px;
}