:root {
    --navy: #1c2e4a;
    --navy-dark: #142238;
    --gold: #b5893a;
    --green: #2e7d32;
    --red: #c62828;
    --gray: #6b7280;
    --bg: #f4f5f7;
    --card-bg: #ffffff;
    --border: #dde1e6;
    --text: #1f2933;
}

* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 16px;
    line-height: 1.5;
}

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

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 20px 16px 60px;
}

/* --- Top navigation --- */
.topbar { background: var(--navy); color: #fff; }
.topbar-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}
.brand { color: #fff; font-weight: 700; text-decoration: none; font-size: 1.1rem; margin-right: 12px; }
.mainnav { display: flex; flex-wrap: wrap; gap: 4px; flex: 1; }
.mainnav a {
    color: #dfe6f0;
    text-decoration: none;
    padding: 8px 10px;
    border-radius: 6px;
    font-size: 0.92rem;
}
.mainnav a:hover { background: var(--navy-dark); color: #fff; }
.userbox { display: flex; align-items: center; gap: 10px; font-size: 0.85rem; color: #cfd8e6; }
.btn-link { color: var(--gold) !important; font-weight: 600; }

/* --- Cards / forms --- */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 20px;
}
.card h2, .card h3 { margin-top: 0; }

.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
label { display: block; font-weight: 600; margin-bottom: 4px; font-size: 0.9rem; }
input[type=text], input[type=password], input[type=number], input[type=date],
select, textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 1rem;
    background: #fff;
}
textarea { min-height: 70px; resize: vertical; }

.btn {
    display: inline-block;
    background: var(--navy);
    color: #fff;
    border: none;
    padding: 10px 18px;
    border-radius: 6px;
    font-size: 1rem;
    cursor: pointer;
    text-decoration: none;
}
.btn:hover { background: var(--navy-dark); }
.btn-secondary { background: #fff; color: var(--navy); border: 1px solid var(--navy); }
.btn-danger { background: var(--red); }
.btn-sm { padding: 6px 12px; font-size: 0.85rem; }

/* --- Tables --- */
table { width: 100%; border-collapse: collapse; background: #fff; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: 0.92rem; }
th { background: #f0f2f5; font-weight: 700; }
tr:hover { background: #fafbfc; }

/* --- Badges --- */
.badge { display: inline-block; padding: 3px 9px; border-radius: 20px; font-size: 0.78rem; font-weight: 700; color: #fff; }
.badge-green { background: var(--green); }
.badge-red { background: var(--red); }
.badge-gray { background: var(--gray); }

/* --- Flash messages --- */
.flash { padding: 12px 16px; border-radius: 8px; margin-bottom: 18px; font-weight: 600; }
.flash-success { background: #e3f3e4; color: var(--green); border: 1px solid #bfe4c1; }
.flash-error   { background: #fbe4e4; color: var(--red); border: 1px solid #f2bcbc; }

/* --- Checklist groups --- */
.check-group { margin-bottom: 20px; }
.check-group h4 { text-transform: uppercase; font-size: 0.8rem; letter-spacing: 0.05em; color: var(--gray); border-bottom: 1px solid var(--border); padding-bottom: 6px; }
.check-item { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px dashed var(--border); flex-wrap: wrap; }
.check-item .item-label { flex: 1; min-width: 220px; font-weight: 500; }
.check-radio-group { display: flex; gap: 14px; }
.check-radio-group label { display: flex; align-items: center; gap: 4px; font-weight: 400; margin: 0; }

/* --- Login page --- */
.login-wrap { max-width: 380px; margin: 60px auto; }
.login-wrap .card { text-align: center; }

/* --- Dashboard stat cards --- */
.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; margin-bottom: 20px; }
.stat-box { background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 16px; text-align: center; }
.stat-box .num { font-size: 1.8rem; font-weight: 700; color: var(--navy); }
.stat-box .label { font-size: 0.85rem; color: var(--gray); }

.sitefooter { text-align: center; color: var(--gray); font-size: 0.8rem; padding: 20px 0; }

/* --- Mobile tweaks (drivers filling out checklists on phones) --- */
@media (max-width: 640px) {
    .mainnav { width: 100%; justify-content: flex-start; }
    table, thead, tbody, th, td, tr { display: block; }
    thead { display: none; }
    tr { margin-bottom: 12px; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
    td { border-bottom: none; padding: 8px 12px; }
    td::before { content: attr(data-label); font-weight: 700; display: block; font-size: 0.75rem; color: var(--gray); }
}