/* Trading Bot Dashboard v2 — Dark Theme
   Matching v1 aesthetic: dark cards, monospace accents, subtle borders */

:root {
    --bg-primary: #0f1117;
    --bg-secondary: #1a1d27;
    --bg-card: #1e2130;
    --bg-card-hover: #242838;
    --bg-input: #151821;
    --border: #2a2e3e;
    --border-light: #353a4d;
    --text-primary: #e4e6ed;
    --text-secondary: #8b8fa3;
    --text-muted: #5c6078;
    --accent: #5b7ff5;
    --accent-hover: #4a6ee0;
    --profit: #2ecc71;
    --profit-bg: rgba(46, 204, 113, 0.1);
    --loss: #e74c3c;
    --loss-bg: rgba(231, 76, 60, 0.1);
    --warning: #f39c12;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: "SF Mono", "Fira Code", "Cascadia Code", Menlo, monospace;
    --radius: 8px;
    --radius-sm: 4px;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

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

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

/* ── Nav ───────────────────────────────────────────────────────────────────── */

.top-nav {
    display: flex;
    align-items: center;
    gap: 2rem;
    padding: 0 1.5rem;
    height: 56px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--accent);
    letter-spacing: -0.02em;
    white-space: nowrap;
}

.nav-links {
    display: flex;
    gap: 0.25rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    transition: background 0.15s, color 0.15s;
    white-space: nowrap;
}

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

.nav-right {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-user {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.nav-logout {
    color: var(--text-muted) !important;
    font-size: 0.85rem;
}

.hamburger {
    display: none;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.4rem;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    margin-left: auto;
}

.mobile-nav {
    flex-direction: column;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 0.5rem 1.5rem;
}

.mobile-nav a {
    display: block;
    padding: 0.6rem 0;
    color: var(--text-secondary);
    text-decoration: none;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
}

.mobile-nav a:last-child { border-bottom: none; }
.mobile-nav a:hover { color: var(--text-primary); }

/* ── Content ───────────────────────────────────────────────────────────────── */

.content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem;
}

.page-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.page-header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.page-title {
    font-size: 1.3rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 1.25rem;
}

.section-title {
    font-size: 1rem;
    font-weight: 600;
    margin: 1.5rem 0 0.75rem;
    color: var(--text-secondary);
}

/* ── Badges ────────────────────────────────────────────────────────────────── */

.badge {
    background: var(--bg-card);
    color: var(--text-secondary);
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-family: var(--font-mono);
}

.badge-admin { background: rgba(155, 89, 182, 0.15); color: #9b59b6; }
.badge-viewer { background: rgba(52, 152, 219, 0.15); color: #3498db; }

.status-badge {
    display: inline-block;
    padding: 0.2rem 0.75rem;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.03em;
}

.status-ok { background: var(--profit-bg); color: var(--profit); }
.status-danger { background: var(--loss-bg); color: var(--loss); animation: pulse 2s ease-in-out infinite; }
.status-warn { background: rgba(243, 156, 18, 0.15); color: var(--warning); }

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

.decision-badge {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    background: rgba(231, 76, 60, 0.15);
    color: #e74c3c;
}

.cap-badge {
    display: inline-block;
    padding: 0.1rem 0.4rem;
    border-radius: var(--radius-sm);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    background: rgba(243, 156, 18, 0.15);
    color: var(--warning);
}

/* ── Metrics Grid ──────────────────────────────────────────────────────────── */

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.metric-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    transition: border-color 0.15s;
}

.metric-card:hover { border-color: var(--border-light); }

.metric-label {
    color: var(--text-secondary);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.metric-value {
    font-size: 1.5rem;
    font-weight: 600;
}

.metric-mono { font-family: var(--font-mono); }

.metric-detail {
    color: var(--text-muted);
    font-size: 0.75rem;
    margin-top: 0.25rem;
}

.metric-sub {
    color: var(--text-muted);
    font-size: 0.7rem;
    margin-top: 0.3rem;
    font-family: var(--font-mono);
}

.metric-card-danger {
    border-color: var(--loss);
    background: var(--loss-bg);
}

/* ── Charts ────────────────────────────────────────────────────────────────── */

.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

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

.chart-card-full { grid-column: 1 / -1; }

.chart-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.chart-header .chart-title { margin-bottom: 0; }

.chart-title {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.btn-reset-zoom {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    font-size: 0.75rem;
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background 0.15s, color 0.15s, border-color 0.15s;
    font-family: var(--font-sans);
    white-space: nowrap;
}

.btn-reset-zoom:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
    border-color: var(--border-light);
}

.chart-container {
    position: relative;
    height: 250px;
}

/* ── Tables ────────────────────────────────────────────────────────────────── */

.table-wrapper {
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-card);
    margin-bottom: 1.5rem;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.data-table thead { background: var(--bg-secondary); }

.data-table th {
    padding: 0.75rem 1rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.data-table td {
    padding: 0.65rem 1rem;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.data-table tbody tr:hover { background: var(--bg-card-hover); }
.data-table tbody tr:last-child td { border-bottom: none; }

.text-right { text-align: right; }
.text-center { text-align: center; }
.mono { font-family: var(--font-mono); font-size: 0.85rem; }
.ticker-cell { font-weight: 700; font-family: var(--font-mono); font-size: 0.9rem; }
.text-profit { color: var(--profit); }
.text-loss { color: var(--loss); }
.text-muted { color: var(--text-muted); }

.row-win { border-left: 2px solid var(--profit); }
.row-loss { border-left: 2px solid var(--loss); }

/* ── Buttons ───────────────────────────────────────────────────────────────── */

.btn {
    padding: 0.65rem 1.5rem;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s;
    font-family: var(--font-sans);
}

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-block { width: 100%; }
.btn-sm { padding: 0.3rem 0.75rem; font-size: 0.8rem; }

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--bg-card-hover); }

.btn-danger {
    background: rgba(231, 76, 60, 0.15);
    color: var(--loss);
    border: 1px solid rgba(231, 76, 60, 0.3);
}
.btn-danger:hover { background: rgba(231, 76, 60, 0.25); }

.btn-success {
    background: rgba(46, 204, 113, 0.15);
    color: var(--profit);
    border: 1px solid rgba(46, 204, 113, 0.3);
}
.btn-success:hover { background: rgba(46, 204, 113, 0.25); }

/* ── Forms ─────────────────────────────────────────────────────────────────── */

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-bottom: 1rem;
}

.form-group label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.form-group input, .form-group select {
    padding: 0.65rem 0.85rem;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: var(--font-sans);
    transition: border-color 0.15s;
}

.form-group input:focus, .form-group select:focus {
    outline: none;
    border-color: var(--accent);
}

.form-row {
    display: flex;
    gap: 1rem;
    align-items: flex-end;
    flex-wrap: wrap;
}

.form-row .form-group { flex: 1; min-width: 150px; }

/* ── Login ─────────────────────────────────────────────────────────────────── */

.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--bg-primary);
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 1.5rem;
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.5rem;
}

.login-title {
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    color: var(--accent);
    margin-bottom: 0.25rem;
}

.login-subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 2rem;
}

/* ── Alerts ────────────────────────────────────────────────────────────────── */

.alert {
    padding: 0.65rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    margin-bottom: 0.75rem;
}

.alert-error {
    background: var(--loss-bg);
    color: var(--loss);
    border: 1px solid rgba(231, 76, 60, 0.2);
}

.alert-success {
    background: var(--profit-bg);
    color: var(--profit);
    border: 1px solid rgba(46, 204, 113, 0.2);
}

/* ── Modal ─────────────────────────────────────────────────────────────────── */

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.modal-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    max-width: 480px;
    width: 90%;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

.modal-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.modal-body {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

/* ── Kill Switch ───────────────────────────────────────────────────────────── */

.kill-switch-bar {
    margin-bottom: 1.5rem;
}

/* ── Trace Browser ─────────────────────────────────────────────────────────── */

.trace-select {
    padding: 0.5rem 0.75rem;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    margin-bottom: 1rem;
    min-width: 200px;
}

.trace-select:focus { outline: none; border-color: var(--accent); }

.trace-json {
    max-height: 500px;
    overflow: auto;
    background: var(--bg-secondary);
    padding: 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    line-height: 1.5;
    color: var(--text-secondary);
    white-space: pre-wrap;
    word-break: break-word;
}

/* ── Signal Cards ──────────────────────────────────────────────────────────── */

.signals-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.signal-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    transition: border-color 0.15s;
}

.signal-card:hover { border-color: var(--border-light); }
.signal-cap { border-left: 3px solid var(--warning); }

.signal-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.35rem;
}

.signal-source {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.signal-title {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
}

.signal-date {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

/* ── Feed Health ───────────────────────────────────────────────────────────── */

.health-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: 0.5rem;
}

.health-healthy { background: var(--profit); }
.health-degraded { background: var(--warning); }
.health-error { background: var(--loss); }

/* ── Admin ─────────────────────────────────────────────────────────────────── */

.admin-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.admin-card-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.role-badge {
    display: inline-block;
    padding: 0.1rem 0.4rem;
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.role-admin { background: rgba(155, 89, 182, 0.15); color: #9b59b6; }
.role-viewer { background: rgba(52, 152, 219, 0.15); color: #3498db; }

/* ── Empty State ───────────────────────────────────────────────────────────── */

.empty-state {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--text-muted);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

/* ── Responsive ────────────────────────────────────────────────────────────── */

@media (max-width: 768px) {
    .nav-links { display: none !important; }
    .nav-right { display: none !important; }
    .hamburger { display: block; }
    .mobile-nav { display: flex; }

    .metrics-grid { grid-template-columns: repeat(2, 1fr); }
    .charts-grid { grid-template-columns: 1fr; }
    .top-nav { gap: 0.5rem; padding: 0 0.75rem; }
    .content { padding: 1rem; }
    .chart-container { height: 200px; }
}

@media (max-width: 480px) {
    .metrics-grid { grid-template-columns: 1fr; }
}