:root {
    --bg-primary: #0A0E17;
    --bg-secondary: #0F1524;
    --bg-card: #131A2B;
    --bg-card-hover: #1A2339;
    --accent: #00D4AA;
    --accent-dim: rgba(0, 212, 170, 0.12);
    --accent-blue: #3B82F6;
    --danger: #EF4444;
    --danger-dim: rgba(239, 68, 68, 0.12);
    --warning: #F59E0B;
    --text: #F1F5F9;
    --text-muted: #94A3B8;
    --border: #1E293B;
    --radius: 12px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

.light {
    --bg-primary: #F8FAFC;
    --bg-secondary: #FFFFFF;
    --bg-card: #F8FAFC;
    --bg-card-hover: #E2E8F0;
    --accent: #0F766E;
    --accent-dim: rgba(15, 118, 110, 0.12);
    --accent-blue: #2563EB;
    --danger: #DC2626;
    --danger-dim: rgba(220, 38, 38, 0.12);
    --warning: #F59E0B;
    --text: #0F172A;
    --text-muted: #64748B;
    --border: #CBD5E1;
    --shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.5;
}

a { color: var(--accent); text-decoration: none; }
a:hover { opacity: 0.85; }

.app-layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    padding: 1.5rem 1rem;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    z-index: 100;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0.75rem 1.5rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 1rem;
}

.sidebar-logo .logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--accent), var(--accent-blue));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
    color: var(--bg-primary);
}

.sidebar-logo h1 {
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.sidebar-logo span {
    font-size: 0.7rem;
    color: var(--text-muted);
    display: block;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 0.85rem;
    border-radius: 8px;
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.15s;
    margin-bottom: 2px;
}

.nav-link:hover, .nav-link.active {
    background: var(--accent-dim);
    color: var(--accent);
}

.nav-link svg { width: 18px; height: 18px; flex-shrink: 0; }

.main-content {
    margin-left: 260px;
    flex: 1;
    padding: 1.5rem 2rem;
    max-width: calc(100vw - 260px);
}

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.page-title h2 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.03em;
}

.page-title p {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-top: 0.15rem;
}

.account-select {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.875rem;
    min-width: 200px;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all 0.15s;
}

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

.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }
.btn-primary:hover:not(:disabled) { filter: brightness(1.1); }

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

.btn-ghost:hover { background: var(--bg-card); color: var(--text); }

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

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

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

.stat-card:hover { border-color: rgba(0, 212, 170, 0.3); }

.stat-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    margin-bottom: 0.35rem;
}

.stat-value {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.stat-value.positive { color: var(--accent); }
.stat-value.negative { color: var(--danger); }

.positive { color: var(--accent); }
.negative { color: var(--danger); }

.charts-grid {
    display: grid;
    grid-template-columns: repeat(2, 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-width { grid-column: 1 / -1; }

.chart-card h3 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.chart-card .chart-sub {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.chart-wrap { position: relative; height: 260px; }
.chart-wrap.sm { height: 200px; }

.section {
    margin-bottom: 2rem;
}

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

.section-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

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

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

.analytics-card h4 {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border);
}

.metric-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.4rem 0;
    font-size: 0.85rem;
}

.metric-row .label { color: var(--text-muted); }
.metric-row .value { font-weight: 600; }

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

.data-table th {
    text-align: left;
    padding: 0.75rem 1rem;
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border);
}

.data-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
}

.data-table tr:hover td { background: var(--bg-card-hover); }

.badge {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-buy { background: var(--accent-dim); color: var(--accent); }
.badge-sell { background: var(--danger-dim); color: var(--danger); }
.badge-profit { background: var(--accent-dim); color: var(--accent); }
.badge-loss { background: var(--danger-dim); color: var(--danger); }

.rating-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 48px;
    padding: 0.25rem 0.65rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.01em;
}

.rating-red {
    background: rgba(239, 68, 68, 0.12);
    color: var(--danger);
}

.rating-yellow {
    background: rgba(245, 158, 11, 0.16);
    color: var(--warning);
}

.rating-green {
    background: rgba(16, 185, 129, 0.16);
    color: var(--accent);
}

.rulebook-panel {
    display: grid;
    gap: 1rem;
}

.rulebook-item {
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 1rem;
    background: var(--bg-secondary);
}

.rulebook-item label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 0.35rem;
}

.rulebook-item strong {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text);
}

.rulebook-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: 0.75rem;
}

.rulebook-legend {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.alert {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

.alert-success { background: var(--accent-dim); color: var(--accent); border: 1px solid rgba(0,212,170,0.3); }
.alert-error { background: var(--danger-dim); color: var(--danger); border: 1px solid rgba(239,68,68,0.3); }

.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(ellipse at top, #131A2B 0%, var(--bg-primary) 70%);
    padding: 2rem;
}

.auth-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2.5rem;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow);
}

.auth-card h2 {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.auth-card .subtitle {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 2rem;
}

.form-group { margin-bottom: 1.25rem; }

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 0.4rem;
}

.form-control {
    width: 100%;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.65rem 0.85rem;
    border-radius: 8px;
    font-size: 0.875rem;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-dim);
}

.form-check {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
}

.calendar-day-header {
    text-align: center;
    font-size: 0.7rem;
    color: var(--text-muted);
    padding: 0.5rem;
    text-transform: uppercase;
}

.calendar-day {
    aspect-ratio: 1;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    border: 1px solid var(--border);
    background: var(--bg-card);
    min-height: 60px;
}

.calendar-day.profit { background: rgba(0, 212, 170, 0.15); border-color: rgba(0, 212, 170, 0.4); }
.calendar-day.loss { background: rgba(239, 68, 68, 0.15); border-color: rgba(239, 68, 68, 0.4); }
.calendar-day.empty { opacity: 0.3; }

.calendar-day .day-num { font-weight: 600; }
.calendar-day .day-pl { font-size: 0.65rem; margin-top: 2px; }

.report-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.report-tab {
    padding: 0.5rem 1rem;
    border-radius: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.85rem;
    cursor: pointer;
}

.report-tab.active {
    background: var(--accent-dim);
    border-color: var(--accent);
    color: var(--accent);
}

.report-panel { display: none; }
.report-panel.active { display: block; }

.mistake-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1rem;
}

.mistake-item {
    background: var(--bg-secondary);
    border-radius: 8px;
    padding: 1rem;
}

.mistake-item .mi-label { font-size: 0.75rem; color: var(--text-muted); }
.mistake-item .mi-value { font-size: 1.1rem; font-weight: 700; margin-top: 0.25rem; }

@media (max-width: 1024px) {
    .charts-grid { grid-template-columns: 1fr; }
    .sidebar { width: 220px; }
    .main-content { margin-left: 220px; max-width: calc(100vw - 220px); }
}

@media (max-width: 768px) {
    .sidebar { display: none; }
    .main-content { margin-left: 0; max-width: 100vw; padding: 1rem; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}