/* ══════════════════════════════════════════════════════════════
   Fleet Tracker — dark industrial design system
   Headings: Barlow Condensed (bold, uppercase, signage-like)
   Body: Inter
   ══════════════════════════════════════════════════════════════ */

:root {
    --bg:        #0f1115;
    --surface:   #171a21;
    --surface-2: #1e222b;
    --border:    #262b35;
    --text:      #e5e7eb;
    --text-dim:  #8b93a3;
    --accent:    #f59e0b;
    --accent-ink:#0f1115;
    --info:      #38bdf8;
    --ok:        #34d399;
    --warn:      #f59e0b;
    --danger:    #f87171;
    --muted:     #6b7280;
    --radius:    4px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Inter', system-ui, sans-serif;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, .navbrand, .stat-value, .btn-tracker, .page-actions h2 {
    font-family: 'Barlow Condensed', sans-serif;
    font-weight: 700;
    letter-spacing: .01em;
}

/* ── Top navbar (not a sidebar) ── */
.tf-navbar {
    background: var(--surface);
    border-bottom: 2px solid var(--accent);
    display: flex;
    align-items: center;
    padding: 0 20px;
    height: 60px;
    position: sticky;
    top: 0;
    z-index: 40;
    gap: 24px;
}
.navbrand {
    display: flex; align-items: center; gap: 10px;
    color: var(--text); text-decoration: none;
    font-size: 22px; text-transform: uppercase; letter-spacing: .04em;
    flex: none;
}
.navbrand i { color: var(--accent); font-size: 20px; }
.tf-nav-links { display: flex; gap: 4px; flex: 1; overflow-x: auto; }
.tf-nav-links a {
    color: var(--text-dim); text-decoration: none;
    font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: .05em;
    padding: 8px 14px; border-radius: var(--radius); white-space: nowrap;
    transition: background .15s, color .15s;
}
.tf-nav-links a:hover { background: var(--surface-2); color: var(--text); }
.tf-nav-links a.active { background: var(--accent); color: var(--accent-ink); }
.tf-nav-user { display: flex; align-items: center; gap: 12px; flex: none; }
.tf-nav-user .u-name { font-size: 13px; font-weight: 600; }
.tf-nav-user .u-role { font-size: 11px; color: var(--text-dim); text-transform: uppercase; }
.tf-nav-user a.logout { color: var(--text-dim); font-size: 16px; }
.tf-nav-user a.logout:hover { color: var(--danger); }
.tf-nav-toggle { display: none; background: none; border: none; color: var(--text); font-size: 20px; }

@media (max-width: 860px) {
    .tf-nav-links { display: none; position: absolute; top: 60px; left: 0; right: 0; background: var(--surface); flex-direction: column; padding: 8px; border-bottom: 2px solid var(--accent); }
    .tf-nav-links.open { display: flex; }
    .tf-nav-toggle { display: block; }
}

.tf-content { max-width: 1180px; margin: 0 auto; padding: 24px 20px 60px; }

/* ── Page header ── */
.page-actions { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 22px; flex-wrap: wrap; }
.page-actions h2 { font-size: 26px; text-transform: uppercase; margin: 0; }
.page-actions .sub { font-size: 13px; color: var(--text-dim); margin-top: 2px; }

/* ── Buttons ── */
.btn-tracker, .btn-tracker-outline, .btn-tracker-sm {
    font-family: 'Inter', sans-serif;
    font-weight: 600; text-transform: uppercase; letter-spacing: .04em;
    border-radius: var(--radius); border: none; cursor: pointer;
    display: inline-flex; align-items: center; gap: 6px; justify-content: center;
    text-decoration: none;
}
.btn-tracker { background: var(--accent); color: var(--accent-ink); padding: 10px 18px; font-size: 13px; }
.btn-tracker:hover { background: #fbbf24; color: var(--accent-ink); }
.btn-tracker-outline { background: transparent; border: 1px solid var(--border); color: var(--text); padding: 9px 16px; font-size: 12.5px; }
.btn-tracker-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-tracker-sm { padding: 5px 10px; font-size: 11px; background: var(--surface-2); color: var(--text); border: 1px solid var(--border); }
.btn-tracker-sm:hover { border-color: var(--accent); color: var(--accent); }
.btn-tracker-sm.danger:hover { border-color: var(--danger); color: var(--danger); }

/* ── Stat cards ── */
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 24px; }
@media (max-width: 860px) { .stat-grid { grid-template-columns: repeat(2, 1fr); } }
.stat-card {
    background: var(--surface); border: 1px solid var(--border); border-left: 3px solid var(--accent);
    border-radius: var(--radius); padding: 16px 18px;
}
.stat-card .label { font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: var(--text-dim); margin-bottom: 8px; }
.stat-value { font-size: 30px; line-height: 1; }
.stat-card .sub { font-size: 11.5px; color: var(--text-dim); margin-top: 6px; }
.stat-card.accent-info  { border-left-color: var(--info); }
.stat-card.accent-ok    { border-left-color: var(--ok); }
.stat-card.accent-warn  { border-left-color: var(--warn); }

/* ── Panels / tables ── */
.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 20px; }
.panel-head {
    display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap;
    padding: 14px 18px; border-bottom: 1px solid var(--border);
}
.panel-head h3 { font-size: 18px; text-transform: uppercase; margin: 0; letter-spacing: .03em; }
.panel-body { padding: 18px; }

table.tf-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
table.tf-table thead th {
    text-align: left; padding: 10px 16px; font-size: 10.5px; text-transform: uppercase; letter-spacing: .06em;
    color: var(--text-dim); border-bottom: 1px solid var(--border); font-weight: 600;
}
table.tf-table tbody td { padding: 12px 16px; border-bottom: 1px solid var(--border); }
table.tf-table tbody tr:last-child td { border-bottom: none; }
table.tf-table tbody tr:hover { background: var(--surface-2); }
.tf-table-wrap { overflow-x: auto; }

/* ── Tags (status badges) ── */
.tag {
    display: inline-block; font-size: 10.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em;
    padding: 3px 9px; border-radius: 2px; border: 1px solid transparent;
}
.tag-ok    { background: rgba(52,211,153,.12); color: var(--ok);   border-color: rgba(52,211,153,.3); }
.tag-info  { background: rgba(56,189,248,.12); color: var(--info); border-color: rgba(56,189,248,.3); }
.tag-warn  { background: rgba(245,158,11,.12); color: var(--warn); border-color: rgba(245,158,11,.3); }
.tag-danger{ background: rgba(248,113,113,.12); color: var(--danger); border-color: rgba(248,113,113,.3); }
.tag-muted { background: rgba(107,114,128,.15); color: var(--muted); border-color: rgba(107,114,128,.3); }

/* ── Empty state ── */
.tf-empty { text-align: center; padding: 50px 20px; color: var(--text-dim); }
.tf-empty i { font-size: 40px; opacity: .3; margin-bottom: 12px; display: block; }

/* ── Forms (dark) ── */
.form-label { font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .03em; color: var(--text-dim); }
.form-control, .form-select {
    background: var(--bg); border: 1px solid var(--border); color: var(--text); border-radius: var(--radius);
}
.form-control:focus, .form-select:focus {
    background: var(--bg); color: var(--text); border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(245,158,11,.15);
}
.form-control::placeholder { color: var(--muted); }

/* ── Modal dark override ── */
.modal-content { background: var(--surface); color: var(--text); border: 1px solid var(--border); border-radius: var(--radius); }
.modal-header, .modal-footer { border-color: var(--border); }
.modal-title { font-family: 'Barlow Condensed', sans-serif; text-transform: uppercase; letter-spacing: .03em; }
.btn-close { filter: invert(1); }

/* ── Auth (login/install) ── */
.auth-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: var(--bg); }
.auth-card { width: 100%; max-width: 380px; background: var(--surface); border: 1px solid var(--border); border-top: 3px solid var(--accent); border-radius: var(--radius); }
.auth-card-top { text-align: center; padding: 32px 24px 12px; }
.auth-logo { width: 56px; height: 56px; border-radius: var(--radius); background: var(--accent); color: var(--accent-ink); display: flex; align-items: center; justify-content: center; font-size: 24px; margin: 0 auto 14px; }
.auth-card-top h1 { font-size: 24px; margin: 0 0 4px; }
.auth-card-top p { color: var(--text-dim); font-size: 13px; margin: 0; }
.auth-card-body { padding: 24px; }

/* ── Toast ── */
.toast-area { position: fixed; top: 70px; right: 16px; z-index: 2000; max-width: 320px; }

/* ── Utility ── */
.fw-700 { font-weight: 700; }
.fw-600 { font-weight: 600; }
.fs-13 { font-size: 13px; }
.text-dim { color: var(--text-dim); }
.amount { font-variant-numeric: tabular-nums; font-weight: 600; }
.amount-neg { color: var(--danger); }
.amount-pos { color: var(--ok); }