/* ==========================================================================
   CookSAT E-Learning Platform Stylesheet (Dashboard, Mock Hub, Practice, Score Report)
   ========================================================================== */

:root {
    --cs-navy: #162447;
    --cs-blue: #2557a7;
    --cs-blue-light: #eef4ff;
    --cs-yellow: #f6c614;
    --cs-green: #15803d;
    --cs-green-bg: #dcfce7;
    --cs-red: #b91c1c;
    --cs-red-bg: #fee2e2;
    --cs-bg: #f4f7fb;
    --cs-card: #ffffff;
    --cs-text: #1e293b;
    --cs-muted: #64748b;
    --cs-border: #e2e8f0;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--cs-bg);
    color: var(--cs-text);
    line-height: 1.55;
}

/* Top Navbar */
.cs-navbar {
    background: var(--cs-navy);
    color: #ffffff;
    padding: 0 28px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.12);
    position: sticky;
    top: 0;
    z-index: 100;
}

.cs-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: #ffffff;
    font-size: 20px;
    font-weight: 800;
    letter-spacing: -0.3px;
}

.cs-brand-badge {
    background: var(--cs-yellow);
    color: #1e1e1e;
    font-size: 11px;
    font-weight: 800;
    padding: 3px 8px;
    border-radius: 999px;
    text-transform: uppercase;
}

.cs-nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.cs-nav-link {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 14.5px;
    font-weight: 600;
    transition: background 0.15s, color 0.15s;
}

.cs-nav-link:hover,
.cs-nav-link.active {
    background: rgba(255, 255, 255, 0.14);
    color: #ffffff;
}

/* Container & Grid */
.cs-container {
    max-width: 1220px;
    margin: 0 auto;
    padding: 28px 24px 64px;
}

.cs-hero {
    background: linear-gradient(135deg, #1d2b4f 0%, #2557a7 100%);
    color: #ffffff;
    border-radius: 16px;
    padding: 28px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
    margin-bottom: 26px;
    box-shadow: 0 10px 28px rgba(29, 43, 79, 0.18);
}

.cs-hero h1 {
    margin: 0 0 8px 0;
    font-size: 26px;
    font-weight: 800;
}

.cs-hero p {
    margin: 0;
    color: rgba(255, 255, 255, 0.88);
    font-size: 15px;
    max-width: 640px;
}

.cs-stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
    margin-bottom: 28px;
}

.cs-stat-card {
    background: var(--cs-card);
    border: 1px solid var(--cs-border);
    border-radius: 14px;
    padding: 20px 22px;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
}

.cs-stat-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--cs-muted);
    text-transform: uppercase;
    letter-spacing: 0.4px;
}

.cs-stat-value {
    font-size: 28px;
    font-weight: 800;
    color: var(--cs-navy);
    margin-top: 4px;
}

.cs-stat-sub {
    font-size: 12.5px;
    color: var(--cs-muted);
    margin-top: 4px;
}

.cs-grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: 22px;
    margin-bottom: 30px;
}

.cs-card {
    background: var(--cs-card);
    border: 1px solid var(--cs-border);
    border-radius: 14px;
    padding: 24px;
    box-shadow: 0 2px 10px rgba(15, 23, 42, 0.04);
}

.cs-card-title {
    margin: 0 0 10px 0;
    font-size: 19px;
    font-weight: 700;
    color: var(--cs-navy);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Buttons & Badges */
.cs-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    border: 1.5px solid transparent;
    transition: all 0.15s;
}

.cs-btn-primary {
    background: var(--cs-blue);
    color: #ffffff;
}

.cs-btn-primary:hover {
    background: #1b4280;
}

.cs-btn-yellow {
    background: var(--cs-yellow);
    color: #1e1e1e;
    border-color: #1e1e1e;
}

.cs-btn-yellow:hover {
    background: #e5b507;
}

.cs-btn-outline {
    background: #ffffff;
    color: var(--cs-blue);
    border-color: var(--cs-blue);
}

.cs-btn-outline:hover {
    background: var(--cs-blue-light);
}

.cs-badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
}

.cs-badge-hard {
    background: #fef3c7;
    color: #92400e;
}

.cs-badge-easy {
    background: #e0f2fe;
    color: #075985;
}

.cs-badge-green {
    background: var(--cs-green-bg);
    color: var(--cs-green);
}

.cs-badge-red {
    background: var(--cs-red-bg);
    color: var(--cs-red);
}

/* Mock Test Cards Grid */
.cs-mock-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 18px;
}

.cs-mock-card {
    background: #ffffff;
    border: 1px solid var(--cs-border);
    border-radius: 14px;
    padding: 20px 22px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 14px;
    transition: transform 0.14s, box-shadow 0.14s;
}

.cs-mock-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(15, 23, 42, 0.08);
}

/* Form Controls */
.cs-form-group {
    margin-bottom: 16px;
}

.cs-form-group label {
    display: block;
    font-size: 13.5px;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--cs-navy);
}

.cs-select,
.cs-input {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid #cbd5e1;
    border-radius: 8px;
    font-size: 14.5px;
    background: #ffffff;
    color: var(--cs-text);
}

/* Table */
.cs-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.cs-table th,
.cs-table td {
    padding: 12px 14px;
    text-align: left;
    border-bottom: 1px solid var(--cs-border);
}

.cs-table th {
    font-size: 12.5px;
    text-transform: uppercase;
    color: var(--cs-muted);
    font-weight: 700;
    background: #f8fafc;
}

/* Data Tables inside Passages on Score Report / Review Page */
.bb-data-table {
    width: 100%;
    border-collapse: collapse;
    margin: 10px 0 16px 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    font-size: 14px;
    line-height: 1.45;
    color: #141414;
    background: #ffffff;
    border: 1.5px solid #333333;
}

.bb-data-table th,
.bb-data-table td {
    border: 1px solid #64748b;
    padding: 8px 12px;
    text-align: left;
    vertical-align: top;
}

.bb-data-table thead th {
    background: #e2e8f0;
    font-weight: 700;
    color: #0f172a;
}

.bb-passage-list {
    margin: 8px 0 14px 0;
    padding-left: 24px;
}

.bb-passage-list li {
    margin-bottom: 6px;
}