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

:root {
    --bg: #060B1A;
    --surface: #0D1428;
    --card: #131B33;
    --card-border: #1E2A4A;
    --ocean: #0077B6;
    --ocean-light: #00B4D8;
    --text: #FFFFFF;
    --text-secondary: #8892B0;
    --text-muted: #4A5578;
    --success: #2ECC71;
    --warning: #F39C12;
    --error: #E74C3C;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    display: flex;
    min-height: 100vh;
}

#app {
    display: flex;
    width: 100%;
}

/* Sidebar */
.sidebar {
    width: 220px;
    background: var(--surface);
    border-right: 1px solid var(--card-border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 10;
}

.sidebar-header {
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.1rem;
    border-bottom: 1px solid var(--card-border);
}

.logo-icon { font-size: 1.3rem; }

.sidebar-nav {
    flex: 1;
    padding: 12px 0;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.15s;
    border-left: 3px solid transparent;
}

.nav-item:hover {
    color: var(--text);
    background: rgba(0, 119, 182, 0.05);
}

.nav-item.active {
    color: var(--ocean-light);
    background: rgba(0, 119, 182, 0.1);
    border-left-color: var(--ocean);
}

.nav-icon { font-size: 1rem; width: 20px; text-align: center; }

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--card-border);
}

.sidebar-footer a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.8rem;
}

.sidebar-footer a:hover { color: var(--text-secondary); }

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 220px;
    padding: 0;
}

.top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 32px;
    border-bottom: 1px solid var(--card-border);
    background: var(--surface);
    position: sticky;
    top: 0;
    z-index: 5;
}

.top-bar h1 { font-size: 1.3rem; font-weight: 600; }

.btn {
    padding: 8px 16px;
    border-radius: 8px;
    border: 1px solid var(--card-border);
    background: var(--card);
    color: var(--text);
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    transition: border-color 0.15s;
    font-family: inherit;
}

.btn:hover { border-color: var(--ocean); }
.btn-sm { padding: 6px 12px; font-size: 0.8rem; }

.btn-primary {
    background: var(--ocean);
    border-color: var(--ocean);
}

/* Pages */
.page { display: none; padding: 24px 32px; }
.page.active { display: block; }

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--ocean-light);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* Cards */
.card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 16px;
}

.card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--card-border);
}

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

.data-table th {
    text-align: left;
    padding: 10px 12px;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--card-border);
}

.data-table td {
    padding: 10px 12px;
    border-bottom: 1px solid rgba(30, 42, 74, 0.5);
    color: var(--text-secondary);
}

.data-table tr:hover td { color: var(--text); }

.data-table .quality-high { color: var(--success); }
.data-table .quality-medium { color: var(--warning); }
.data-table .quality-low { color: var(--error); }

/* Toolbar */
.toolbar {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
}

.input-search, .input-select, .input-date {
    padding: 10px 14px;
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    color: var(--text);
    font-size: 0.85rem;
    font-family: inherit;
    outline: none;
    transition: border-color 0.15s;
}

.input-search { flex: 1; }
.input-search:focus, .input-select:focus, .input-date:focus { border-color: var(--ocean); }

.input-select {
    min-width: 180px;
    cursor: pointer;
}

.input-select option { background: var(--card); }

/* Info Block */
.info-block { font-size: 0.9rem; }

.info-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid rgba(30, 42, 74, 0.3);
}

.info-row .label { color: var(--text-secondary); }
.info-row .value { font-weight: 500; }

.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-error { color: var(--error); }

/* Quality badge */
.quality-badge {
    display: inline-block;
    padding: 3px 8px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
}

.quality-badge.high { background: rgba(46, 204, 113, 0.15); color: var(--success); }
.quality-badge.medium { background: rgba(243, 156, 18, 0.15); color: var(--warning); }
.quality-badge.low { background: rgba(231, 76, 60, 0.15); color: var(--error); }

/* Responsive */
@media (max-width: 768px) {
    .sidebar { width: 60px; }
    .logo-text, .nav-item span:not(.nav-icon) { display: none; }
    .main-content { margin-left: 60px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .toolbar { flex-direction: column; }
    .page { padding: 16px; }
}