:root {
    --navy: #0b1f3a;
    --navy-light: #163663;
    --green: #2e7d32;
    --amber: #d97706;
    --red: #d9534f;
    --bg: #f2f4f7;
    --card: #ffffff;
    --border: #e2e5ea;
    --text: #1c2430;
    --text-muted: #6b7280;
    --radius: 10px;
    --shadow: 0 2px 8px rgba(16, 24, 40, 0.06);
    --shadow-lg: 0 8px 24px rgba(16, 24, 40, 0.10);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.55;
    -webkit-text-size-adjust: 100%;
}

a { color: var(--navy); }

/* ---------- Top bar ---------- */
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--navy);
    color: white;
    padding: 14px 20px;
    position: sticky;
    top: 0;
    z-index: 50;
}
.topbar .brand {
    color: white;
    text-decoration: none;
    font-weight: 700;
    font-size: 18px;
    letter-spacing: 0.2px;
}
.topbar .brand span { color: #7fb3ff; }
.topbar-links { display: flex; gap: 18px; align-items: center; }
.topbar-links a {
    color: #dce6f5;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
}
.topbar-links a:hover { color: white; }

/* ---------- Page container ---------- */
.page {
    max-width: 960px;
    margin: 0 auto;
    padding: 20px 16px 60px;
}

/* ---------- Cards ---------- */
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    margin-bottom: 18px;
}
.card h2, .card h3 { margin-top: 0; }

/* ---------- Buttons ---------- */
button, .btn, input[type="submit"] {
    background-color: var(--navy);
    color: white;
    border: none;
    padding: 12px 18px;
    min-height: 44px;
    cursor: pointer;
    border-radius: 8px;
    font-weight: 600;
    font-size: 15px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    text-decoration: none;
    transition: background-color 0.15s ease;
}
button:hover, .btn:hover { background-color: var(--navy-light); }
.btn-secondary { background-color: #eef1f6; color: var(--text); }
.btn-secondary:hover { background-color: #e2e6ee; }
.btn-danger { background-color: var(--red); }
.btn-success { background-color: var(--green); }
.btn-block { width: 100%; }

/* ---------- Forms ---------- */
label { font-weight: 600; font-size: 14px; display: block; margin-top: 10px; }
input, select, textarea {
    width: 100%;
    padding: 11px 12px;
    margin: 6px 0 4px;
    box-sizing: border-box;
    border: 1px solid #cfd4dc;
    border-radius: 8px;
    font-size: 15px;
    min-height: 44px;
    font-family: inherit;
    background: white;
}
textarea { min-height: 90px; }
input[type="file"] { padding: 8px; }

/* ---------- Stat cards (dashboard summaries) ---------- */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
    margin-bottom: 18px;
}
.stat-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    box-shadow: var(--shadow);
    text-align: left;
}
.stat-card .stat-value { font-size: 26px; font-weight: 700; line-height: 1.1; }
.stat-card .stat-label { font-size: 13px; color: var(--text-muted); margin-top: 4px; }
.stat-card.stat-warn .stat-value { color: var(--amber); }
.stat-card.stat-danger .stat-value { color: var(--red); }
.stat-card.stat-ok .stat-value { color: var(--green); }

/* ---------- Badges ---------- */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    color: white;
}
.badge-pass, .badge-ok { background-color: var(--green); }
.badge-advisory, .badge-warn { background-color: var(--amber); }
.badge-fail, .badge-danger { background-color: var(--red); }

/* ---------- Tables (scroll on mobile instead of squashing) ---------- */
.table-scroll { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px; border-bottom: 1px solid var(--border); text-align: left; font-size: 14px; }
th { background-color: var(--navy); color: white; white-space: nowrap; }

/* ---------- Utility grid for form rows ---------- */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 10px;
}

/* ---------- Nav pills (filters) ---------- */
.pill-nav { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
.pill-nav a {
    text-decoration: none;
    padding: 8px 14px;
    border-radius: 999px;
    background: #eef1f6;
    color: var(--text);
    font-size: 13px;
    font-weight: 600;
}
.pill-nav a.active { background: var(--navy); color: white; }

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
    .page { padding: 14px 12px 50px; }
    .topbar { padding: 12px 14px; }
    .card { padding: 16px; }
    table, thead, tbody, th, td, tr { font-size: 13px; }
    button, .btn { width: 100%; }
    .btn-inline { width: auto; }
}

@media print {
    .topbar, .no-print { display: none !important; }
    .page { max-width: 100%; padding: 0; }
    body { background: white; }
}