:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;
    --bg-glass: rgba(26, 26, 37, 0.7);
    --accent-primary: #00d4ff;
    --accent-secondary: #7c3aed;
    --accent-success: #10b981;
    --accent-danger: #ef4444;
    --accent-warning: #f59e0b;
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #6b6b7b;
    --border-color: rgba(255, 255, 255, 0.08);
    --font-display: 'Space Grotesk', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

body {
    font-family: var(--font-display);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

.login-screen {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    z-index: 1000;
}

.login-container {
    width: 100%;
    max-width: 420px;
    padding: 3rem;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    text-align: center;
}

.brand-icon { width: 80px; height: 80px; margin: 0 auto 1.5rem; color: var(--accent-primary); }

.login-brand h1 {
    font-size: 1.75rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.login-form { display: flex; flex-direction: column; gap: 1.25rem; margin-top: 2rem; }

.input-group { display: flex; flex-direction: column; gap: 0.5rem; text-align: left; }

.input-group input {
    padding: 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-family: var(--font-mono);
}

.login-btn {
    padding: 1rem;
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    border: none;
    border-radius: 12px;
    color: white;
    font-weight: 600;
    cursor: pointer;
}

.dashboard.hidden { display: none; }

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 100;
}

.brand { display: flex; align-items: center; gap: 0.75rem; }

.brand-text {
    font-weight: 700;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-desktop { display: flex; gap: 0.5rem; }

.nav-link {
    padding: 0.5rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s;
}

.nav-link:hover, .nav-link.active { color: var(--text-primary); background: var(--bg-tertiary); }

.bot-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-tertiary);
    border-radius: 20px;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-success);
    animation: pulse 2s infinite;
}

.main-content {
    padding: 96px 2rem 100px;
    max-width: 1600px;
    margin: 0 auto;
}

.hero {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 3rem;
    align-items: center;
    margin-bottom: 2rem;
    padding: 2rem;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 24px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--accent-success);
    border-radius: 20px;
    font-size: 0.75rem;
    color: var(--accent-success);
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.stat-card {
    padding: 1.5rem;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 16px;
}

.stat-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-4px);
    transition: all 0.3s;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-mono);
}

.chart-section {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 24px;
}

.chart-container {
    position: relative;
    height: 400px;
    background: var(--bg-secondary);
    border-radius: 16px;
}

#trading-chart { width: 100%; height: 100%; }

.signal-panel { margin-bottom: 2rem; }

.signal-card {
    padding: 1.5rem;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    max-width: 500px;
    margin: 0 auto;
}

.signal-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.action-btn {
    padding: 1rem;
    border: none;
    border-radius: 12px;
    font-weight: 700;
    cursor: pointer;
    color: white;
}

.call-btn { background: var(--accent-success); }
.put-btn { background: var(--accent-danger); }

.market-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}

.market-card {
    padding: 1.25rem;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 16px;
}

.history-table-wrapper {
    overflow-x: auto;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 16px;
}

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

.history-table th, .history-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.history-table th {
    background: var(--bg-tertiary);
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-secondary);
}

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

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

@media (max-width: 768px) {
    .nav-desktop { display: none; }
    .hero { grid-template-columns: 1fr; text-align: center; }
    .chart-container { height: 300px; }
    .main-content { padding: 80px 1rem 90px; }
}