/* ====================
 公共样式 - Common Styles
 ==================== */

/* CSS Variables */
:root {
 /* Colors - Exchange Theme */
 --bg-primary: #0a0e27;
 --bg-secondary: #141b2d;
 --bg-tertiary: #1f2940;
 --bg-hover: rgba(255, 255, 255, 0.04);

 --binance-yellow: #F3BA2F; /* Binance 品牌黄色 */
 --bitget-blue: #00D4FF; /* Bitget 品牌蓝色 */
 --accent-purple: #b936f5;
 --accent-pink: #ff2d92;

 --text-primary: #ffffff;
 --text-secondary: #8b92a7;
 --text-tertiary: #5a6178;

 --success: #00ff88;
 --danger: #ff4757;
 --warning: #ffa502;

 --border: rgba(255, 255, 255, 0.08);
 --border-hover: rgba(243, 186, 47, 0.3);

 --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
 --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
 --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);

 --glow-binance: 0 0 20px rgba(243, 186, 47, 0.3);
 --glow-bitget: 0 0 20px rgba(0, 212, 255, 0.3);

 /* Typography */
 --font-display: 'Orbitron', sans-serif;
 --font-body: 'JetBrains Mono', monospace;

 /* 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;

 /* Transitions */
 --transition-fast: 0.2s ease;
 --transition-normal: 0.3s ease;
 --transition-slow: 0.5s ease;
}

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

/* Body */
body {
 font-family: var(--font-body);
 background: var(--bg-primary);
 color: var(--text-primary);
 min-height: 100vh;
 overflow-x: hidden;
 line-height: 1.6;
}

/* Background Effects */
body::before {
 content: '';
 position: fixed;
 top: 0;
 left: 0;
 width: 100%;
 height: 100%;
 background:
 radial-gradient(circle at 20% 20%, rgba(0, 240, 255, 0.08) 0%, transparent 50%),
 radial-gradient(circle at 80% 80%, rgba(185, 54, 245, 0.08) 0%, transparent 50%),
 radial-gradient(circle at 50% 50%, rgba(255, 45, 146, 0.05) 0%, transparent 50%);
 pointer-events: none;
 z-index: 0;
}

body::after {
 content: '';
 position: fixed;
 top: 0;
 left: 0;
 width: 100%;
 height: 100%;
 background-image:
 linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
 linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
 background-size: 50px 50px;
 pointer-events: none;
 z-index: 0;
}

/* Container */
.container {
 max-width: 1600px;
 margin: 0 auto;
 padding: var(--spacing-lg);
 position: relative;
 z-index: 1;
}

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

h1 {
 font-size: 2.5rem;
 background: linear-gradient(135deg, var(--binance-yellow), var(--bitget-blue));
 -webkit-background-clip: text;
 -webkit-text-fill-color: transparent;
 background-clip: text;
 letter-spacing: 0.05em;
 text-transform: uppercase;
}

h2 {
 font-size: 1.5rem;
 color: var(--text-primary);
}

h3 {
 font-size: 1.25rem;
 color: var(--text-secondary);
}

p {
 margin-bottom: var(--spacing-sm);
}

/* Buttons */
.btn {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 gap: var(--spacing-xs);
 padding: var(--spacing-sm) var(--spacing-md);
 border: 1px solid transparent;
 border-radius: var(--radius-sm);
 font-family: var(--font-body);
 font-size: 0.85rem;
 font-weight: 500;
 cursor: pointer;
 transition: all var(--transition-normal);
 text-decoration: none;
 text-transform: uppercase;
 letter-spacing: 0.1em;
}

.btn-primary {
 background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
 color: var(--bg-primary);
 border: none;
}

.btn-primary:hover {
 transform: translateY(-2px);
 box-shadow: var(--glow-cyan);
}

.btn-secondary {
 background: transparent;
 color: var(--binance-yellow);
 border-color: var(--binance-yellow);
}

.btn-secondary:hover {
 background: var(--binance-yellow);
 color: var(--bg-primary);
 box-shadow: var(--glow-binance);
}

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

.btn-danger:hover {
 background: var(--danger);
 color: white;
}

.btn-sm {
 padding: var(--spacing-xs) var(--spacing-sm);
 font-size: 0.75rem;
}

.btn:disabled {
 opacity: 0.5;
 cursor: not-allowed;
}

/* Cards */
.card {
 background: linear-gradient(135deg, rgba(20, 27, 45, 0.9), rgba(31, 41, 64, 0.7));
 backdrop-filter: blur(20px);
 border: 1px solid var(--border);
 border-radius: var(--radius-lg);
 padding: var(--spacing-lg);
 position: relative;
 overflow: hidden;
 transition: all var(--transition-normal);
}

.card::before {
 content: '';
 position: absolute;
 top: 0;
 left: 0;
 right: 0;
 height: 2px;
 background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
 opacity: 0;
 transition: opacity var(--transition-normal);
}

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

.card:hover {
 border-color: var(--border-hover);
 transform: translateY(-2px);
}

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

.card-title {
 font-family: var(--font-display);
 font-size: 0.9rem;
 font-weight: 600;
 color: var(--text-secondary);
 text-transform: uppercase;
 letter-spacing: 0.15em;
}

.card-badge {
 font-size: 0.75rem;
 color: var(--binance-yellow);
 background: rgba(243, 186, 47, 0.1);
 padding: var(--spacing-xs) var(--spacing-sm);
 border-radius: var(--radius-sm);
 border: 1px solid rgba(243, 186, 47, 0.3);
}

/* Forms */
.form-group {
 margin-bottom: var(--spacing-md);
}

.form-label {
 display: block;
 margin-bottom: var(--spacing-xs);
 font-size: 0.85rem;
 color: var(--text-secondary);
 text-transform: uppercase;
 letter-spacing: 0.1em;
}

.form-input {
 width: 100%;
 padding: var(--spacing-sm);
 background: var(--bg-tertiary);
 border: 1px solid var(--border);
 border-radius: var(--radius-sm);
 color: var(--text-primary);
 font-family: var(--font-body);
 font-size: 0.9rem;
 transition: all var(--transition-fast);
}

.form-input:focus {
 outline: none;
 border-color: var(--binance-yellow);
 box-shadow: 0 0 0 3px rgba(243, 186, 47, 0.1);
}

.form-input::placeholder {
 color: var(--text-tertiary);
}

.form-select {
 appearance: none;
 background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238b92a7' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
 background-repeat: no-repeat;
 background-position: right 12px center;
 padding-right: 36px;
}

/* Tables */
.table-wrapper {
 overflow-x: auto;
 margin-top: var(--spacing-sm);
}

table {
 width: 100%;
 border-collapse: collapse;
 font-size: 0.85rem;
}

thead {
 background: rgba(0, 240, 255, 0.05);
}

th {
 padding: var(--spacing-sm);
 text-align: left;
 font-weight: 600;
 color: var(--text-secondary);
 text-transform: uppercase;
 letter-spacing: 0.1em;
 border-bottom: 2px solid var(--border);
}

td {
 padding: var(--spacing-sm);
 border-bottom: 1px solid var(--border);
 color: var(--text-primary);
}

tbody tr {
 transition: all var(--transition-fast);
}

tbody tr:hover {
 background: var(--bg-hover);
}

/* Badges */
.badge {
 display: inline-block;
 padding: var(--spacing-xs) var(--spacing-sm);
 border-radius: var(--radius-sm);
 font-size: 0.75rem;
 font-weight: 600;
}

.badge-success {
 background: rgba(0, 255, 136, 0.1);
 color: var(--success);
 border: 1px solid rgba(0, 255, 136, 0.3);
}

.badge-danger {
 background: rgba(255, 71, 87, 0.1);
 color: var(--danger);
 border: 1px solid rgba(255, 71, 87, 0.3);
}

.badge-warning {
 background: rgba(255, 165, 2, 0.1);
 color: var(--warning);
 border: 1px solid rgba(255, 165, 2, 0.3);
}

.badge-info {
 background: rgba(0, 212, 255, 0.1);
 color: var(--bitget-blue);
 border: 1px solid rgba(0, 212, 255, 0.3);
}

/* Utilities */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-tertiary { color: var(--text-tertiary); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.hidden { display: none !important; }
.visible { display: block !important; }

/* Loading */
.loading {
 text-align: center;
 padding: var(--spacing-xl);
 color: var(--text-tertiary);
}

.loading::after {
 content: '...';
 animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
 0%, 20% { content: '.'; }
 40% { content: '..'; }
 60% { content: '...'; }
 80%, 100% { content: ''; }
}

/* Animations */
@keyframes fadeInUp {
 from {
 opacity: 0;
 transform: translateY(20px);
 }
 to {
 opacity: 1;
 transform: translateY(0);
 }
}

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

.fade-in-up {
 animation: fadeInUp 0.6s ease-out forwards;
}

/* Scrollbar */
::-webkit-scrollbar {
 width: 8px;
 height: 8px;
}

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

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

::-webkit-scrollbar-thumb:hover {
 background: var(--bitget-blue);
}

/* Responsive */
@media (max-width: 1024px) {
 .container {
 padding: var(--spacing-md);
 }

 h1 {
 font-size: 1.8rem;
 }
}

@media (max-width: 768px) {
 .container {
 padding: var(--spacing-sm);
 }

 h1 {
 font-size: 1.5rem;
 }

 .btn {
 padding: var(--spacing-xs) var(--spacing-sm);
 font-size: 0.8rem;
 }
}