/* Fahrschuldesk UI (Phase 7) — mobile-first, Hell-/Dunkel-Theme, kein externes CSS */

:root {
    --bg: #f2f5f7;
    --surface: #ffffff;
    --surface-2: #f7fafb;
    --border: #dfe7ec;
    --text: #12222e;
    --text-muted: #5c7080;
    --primary: #0e6e6b;
    --primary-strong: #0a5654;
    --primary-contrast: #ffffff;
    --accent: #d97706;
    --success: #15803d;
    --success-bg: #e9f7ee;
    --info: #0369a1;
    --info-bg: #e8f4fb;
    --warning: #b45309;
    --warning-bg: #fdf2e3;
    --danger: #b91c1c;
    --danger-bg: #fdecec;
    --muted-bg: #eef2f5;
    --shadow: 0 1px 3px rgba(18, 34, 46, .08), 0 1px 2px rgba(18, 34, 46, .05);
    --shadow-lg: 0 10px 25px rgba(18, 34, 46, .13);
    --radius: 12px;
}

[data-theme="dark"] {
    --bg: #0d161d;
    --surface: #16232d;
    --surface-2: #101c25;
    --border: #263846;
    --text: #e3ecf2;
    --text-muted: #8fa6b5;
    --primary: #2aa198;
    --primary-strong: #1d827b;
    --accent: #f59e0b;
    --success: #4ade80;
    --success-bg: #12291b;
    --info: #7dd3fc;
    --info-bg: #0e2433;
    --warning: #fbbf24;
    --warning-bg: #2e2310;
    --danger: #f87171;
    --danger-bg: #331616;
    --muted-bg: #1c2b36;
    --shadow: 0 1px 3px rgba(0, 0, 0, .45);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, .55);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { line-height: 1.25; }

/* ---------- Topbar / Navigation ---------- */
.topbar {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: var(--shadow);
}
.topbar-inner {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 10px 16px;
    flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand-mark {
    width: 38px; height: 38px;
    border-radius: 10px;
    background: linear-gradient(135deg, #0e6e6b, #134e4a 60%, #d97706 140%);
    color: #fff;
    display: grid; place-items: center;
    font-weight: 800; font-size: 14px;
    letter-spacing: .5px;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-text small { color: var(--text-muted); font-size: 12px; }

.mainnav { display: none; gap: 4px; flex: 1; flex-wrap: wrap; }
.mainnav.open { display: flex; flex-direction: column; width: 100%; order: 10; }
.mainnav a {
    color: var(--text-muted);
    padding: 8px 12px;
    border-radius: 8px;
    font-weight: 500;
    font-size: 14px;
    display: flex; align-items: center; gap: 6px;
}
.mainnav a:hover { background: var(--surface-2); text-decoration: none; color: var(--text); }
.mainnav a.active { background: var(--primary); color: var(--primary-contrast); }
.nav-badge {
    display: inline-block;
    min-width: 18px;
    padding: 1px 5px;
    border-radius: 999px;
    background: var(--accent);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    text-align: center;
    line-height: 16px;
}
.mainnav a.active .nav-badge { background: rgba(255, 255, 255, .28); }

.topbar-actions { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.auth-user { display: flex; flex-direction: column; align-items: flex-end; line-height: 1.15; }
.auth-name { font-size: 13px; font-weight: 600; }
.auth-role { font-size: 11px; color: var(--text-muted); }

.theme-toggle, .nav-toggle {
    background: var(--surface-2);
    border: 1px solid var(--border);
    color: var(--text);
    width: 38px; height: 38px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
}
.nav-toggle { display: inline-grid; place-items: center; }

@media (min-width: 900px) {
    .mainnav { display: flex; }
    .mainnav.open { flex-direction: row; width: auto; order: 0; }
    .nav-toggle { display: none; }
}

/* ---------- Layout ---------- */
.content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 18px 16px 60px;
}
.page-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    margin: 6px 0 16px;
}
.page-head h1 { margin: 0; font-size: 24px; }
.page-head .sub { color: var(--text-muted); font-size: 14px; margin-top: 2px; }
.page-actions { display: flex; gap: 8px; flex-wrap: wrap; }

.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
@media (min-width: 900px) {
    .grid-2 { grid-template-columns: 1fr 1fr; }
    .grid-3 { grid-template-columns: repeat(3, 1fr); }
}

/* ---------- Karten / KPI ---------- */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 16px;
    margin-bottom: 16px;
}
.card h2 {
    margin: 0 0 12px;
    font-size: 16px;
    display: flex; align-items: center; justify-content: space-between; gap: 8px;
    flex-wrap: wrap;
}
.card h2 .card-link { font-size: 13px; font-weight: 500; }

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 18px;
}
@media (min-width: 900px) { .kpi-grid { grid-template-columns: repeat(4, 1fr); } }
.kpi {
    background: var(--surface);
    border: 1px solid var(--border);
    border-left: 4px solid var(--primary);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 14px 16px;
    display: block;
    color: var(--text);
}
.kpi:hover { text-decoration: none; box-shadow: var(--shadow-lg); }
.kpi .kpi-value { font-size: 26px; font-weight: 800; letter-spacing: -0.5px; }
.kpi .kpi-label { color: var(--text-muted); font-size: 13px; }
.kpi.kpi-accent { border-left-color: var(--accent); }
.kpi.kpi-danger { border-left-color: var(--danger); }
.kpi.kpi-info { border-left-color: var(--info); }

/* ---------- Tabellen ---------- */
.table-wrap { overflow-x: auto; }
table.data {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}
table.data th {
    text-align: left;
    color: var(--text-muted);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .4px;
    padding: 8px 10px;
    border-bottom: 2px solid var(--border);
    white-space: nowrap;
}
table.data td {
    padding: 9px 10px;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}
table.data tr:last-child td { border-bottom: none; }
table.data tr:hover td { background: var(--surface-2); }
td.num, th.num { text-align: right; white-space: nowrap; }
.row-muted td { color: var(--text-muted); }

.empty {
    color: var(--text-muted);
    padding: 14px 4px;
    font-size: 14px;
}

/* ---------- Badges / Chips ---------- */
.badge {
    display: inline-block;
    padding: 2px 9px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
}
.badge-success { background: var(--success-bg); color: var(--success); }
.badge-info    { background: var(--info-bg); color: var(--info); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-danger  { background: var(--danger-bg); color: var(--danger); }
.badge-muted   { background: var(--muted-bg); color: var(--text-muted); }

.chip {
    display: inline-block;
    background: var(--muted-bg);
    border-radius: 6px;
    padding: 1px 7px;
    font-size: 12px;
    font-weight: 600;
    margin-right: 4px;
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-block;
    background: var(--primary);
    color: var(--primary-contrast);
    border: 1px solid var(--primary);
    padding: 8px 14px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    line-height: 1.4;
}
.btn:hover { background: var(--primary-strong); text-decoration: none; }
.btn-secondary {
    background: var(--surface-2);
    color: var(--text);
    border-color: var(--border);
}
.btn-secondary:hover { background: var(--muted-bg); }
.btn-danger { background: var(--danger); border-color: var(--danger); }
.btn-danger:hover { background: #991b1b; }
.btn-sm { padding: 4px 10px; font-size: 13px; border-radius: 6px; }
.btn[disabled] { opacity: .55; cursor: not-allowed; }

/* ---------- Formulare ---------- */
label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 4px; color: var(--text); }
input, select, textarea {
    background: var(--surface-2);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px 10px;
    font-size: 14px;
    font-family: inherit;
    width: 100%;
}
input:focus, select:focus, textarea:focus {
    outline: 2px solid var(--primary);
    outline-offset: 0;
    border-color: var(--primary);
}
input[type="checkbox"], input[type="radio"] { width: auto; }
.field { margin-bottom: 12px; }
.field .hint { font-size: 12px; color: var(--text-muted); margin-top: 3px; }
.form-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0 16px;
}
@media (min-width: 700px) { .form-grid { grid-template-columns: 1fr 1fr; } }
.form-grid .span-2 { grid-column: 1 / -1; }
.form-actions { margin-top: 10px; display: flex; gap: 8px; flex-wrap: wrap; }
.inline-form { display: inline; }
.inline-form .btn { vertical-align: middle; }
.form-row {
    display: flex; gap: 8px; flex-wrap: wrap; align-items: flex-end;
}
.form-row .field { flex: 1 1 140px; margin-bottom: 8px; }
.form-row .field-sm { flex: 0 1 110px; }
.form-row .form-submit { flex: 0 0 auto; margin-bottom: 8px; }

/* ---------- Filterleiste ---------- */
.filterbar {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: flex-end;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px 14px;
    margin-bottom: 16px;
}
.filterbar .field { margin-bottom: 0; flex: 1 1 150px; }
.filterbar .form-submit { flex: 0 0 auto; }

/* ---------- Flash-Meldungen ---------- */
.flash {
    padding: 10px 14px;
    border-radius: 10px;
    margin-bottom: 14px;
    font-size: 14px;
    border: 1px solid transparent;
}
.flash-success { background: var(--success-bg); color: var(--success); border-color: color-mix(in srgb, var(--success) 30%, transparent); }
.flash-error   { background: var(--danger-bg); color: var(--danger); border-color: color-mix(in srgb, var(--danger) 30%, transparent); }
.flash-info    { background: var(--info-bg); color: var(--info); border-color: color-mix(in srgb, var(--info) 30%, transparent); }
.flash-warning { background: var(--warning-bg); color: var(--warning); border-color: color-mix(in srgb, var(--warning) 30%, transparent); }
.flash code {
    display: block;
    margin-top: 6px;
    padding: 8px;
    background: var(--surface);
    border-radius: 6px;
    word-break: break-all;
    font-size: 13px;
    user-select: all;
}

/* ---------- Detailseiten ---------- */
.detail-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 6px 24px;
    font-size: 14px;
}
@media (min-width: 700px) { .detail-grid { grid-template-columns: 1fr 1fr; } }
.detail-grid dt { color: var(--text-muted); font-size: 12px; text-transform: uppercase; letter-spacing: .4px; margin: 6px 0 0; }
.detail-grid dd { margin: 0; }
dl.detail-grid { margin: 0; }

.timeline { list-style: none; margin: 0; padding: 0; }
.timeline li {
    position: relative;
    padding: 0 0 14px 22px;
    border-left: 2px solid var(--border);
    margin-left: 8px;
    font-size: 14px;
}
.timeline li::before {
    content: "";
    position: absolute;
    left: -7px; top: 3px;
    width: 12px; height: 12px;
    border-radius: 50%;
    background: var(--primary);
    border: 2px solid var(--surface);
}
.timeline li:last-child { padding-bottom: 2px; }
.timeline .time { color: var(--text-muted); font-size: 12px; display: block; }

/* ---------- Login ---------- */
.login-wrap {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px 16px;
    background:
        radial-gradient(1000px 500px at 85% -10%, color-mix(in srgb, var(--primary) 16%, transparent), transparent),
        radial-gradient(700px 380px at -10% 110%, color-mix(in srgb, var(--accent) 12%, transparent), transparent),
        var(--bg);
}
.login-card {
    width: 100%;
    max-width: 420px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    padding: 28px;
}
.login-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.login-brand .brand-mark { width: 46px; height: 46px; font-size: 16px; }
.login-brand h1 { margin: 0; font-size: 21px; }
.login-brand small { color: var(--text-muted); display: block; }
.demo-hint {
    margin-top: 16px;
    background: var(--surface-2);
    border: 1px dashed var(--border);
    border-radius: 10px;
    padding: 10px 12px;
    font-size: 12.5px;
    color: var(--text-muted);
}
.demo-hint strong { color: var(--text); }

/* ---------- Kleinkram ---------- */
.muted { color: var(--text-muted); }
.small { font-size: 12.5px; }
.nowrap { white-space: nowrap; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.divider { border: none; border-top: 1px solid var(--border); margin: 14px 0; }
details.panel { border: 1px solid var(--border); border-radius: 10px; padding: 8px 12px; margin-bottom: 10px; background: var(--surface-2); }
details.panel summary { cursor: pointer; font-weight: 600; font-size: 14px; }
details.panel[open] { padding-bottom: 12px; }
.warn-row td { background: var(--warning-bg) !important; }
.danger-row td { background: var(--danger-bg) !important; }

/* B2B-Inbox-Reiter (Phase D4) */
.tabbar { display: flex; flex-wrap: wrap; gap: 4px; margin: 0 0 16px; border-bottom: 1px solid var(--border); }
.tabbar .tab { display: inline-flex; align-items: center; gap: 6px; padding: 8px 14px; border: 1px solid transparent; border-bottom: none; border-radius: 8px 8px 0 0; color: var(--text-muted); text-decoration: none; font-size: 14px; font-weight: 600; }
.tabbar .tab:hover { background: var(--surface-2); color: var(--text); }
.tabbar .tab.active { background: var(--surface); border-color: var(--border); color: var(--text); margin-bottom: -1px; }
.tabbar .tab .nav-badge { background: var(--accent, #2563eb); color: #fff; }

/* Barrierearm: visuell versteckte, fuer Screenreader lesbare Inhalte (z. B. Tabellen-<caption>). */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

/* ------------------------------------------------------------------ */
/* Kalkulationsmodul Phase 3: Preis-/Theorie-Maske, Slider, Inline-Balken */
/* ------------------------------------------------------------------ */
.calc-layout { display: grid; gap: 16px; grid-template-columns: 1fr; align-items: start; }
@media (min-width: 900px) { .calc-layout { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); } }
.calc-results { display: flex; flex-direction: column; gap: 16px; }

.kpi-row { display: grid; gap: 12px; grid-template-columns: repeat(2, minmax(0, 1fr)); margin-bottom: 16px; }
@media (min-width: 900px) { .kpi-row { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.kpi-row .kpi { margin: 0; }

.calc-slider .calc-slider-row { display: flex; align-items: center; gap: 8px; }
.calc-range { flex: 1 1 auto; min-width: 0; accent-color: var(--primary); }
.calc-num { flex: 0 0 84px; width: 84px; text-align: right; }
.calc-unit { color: var(--text-muted); font-size: 12px; font-weight: 400; }

.calc-bar { display: block; width: 100%; min-width: 60px; height: 12px; background: var(--surface-2);
    border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.calc-bar-fill { display: block; height: 100%; background: var(--primary); border-radius: 6px 0 0 6px; transition: width .2s ease; }

.row-total td { border-top: 2px solid var(--border); }

/* Vertragsvorlagen Phase 1: Checkbox-Labels, Listen, Monospace */
label.check { display: inline-flex; align-items: center; gap: .4rem; font-weight: 400; cursor: pointer; }
label.check input { width: auto; margin: 0; }
.check-list { display: flex; flex-wrap: wrap; gap: .35rem 1.25rem; margin: .25rem 0 .75rem; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.signing-row { align-items: flex-end; flex-wrap: wrap; gap: .75rem; padding: .5rem 0; border-bottom: 1px solid var(--border, rgba(128,128,128,.2)); }

/* Vertragsvorlagen Phase 2/3: Klausel-Editor, Checklisten, Vorschau */
.clause-item { border: 1px solid var(--border, rgba(128,128,128,.25)); border-radius: 6px; padding: .5rem .75rem; margin-bottom: .5rem; }
.clause-item > summary { cursor: pointer; }
.clause-item .field { margin-top: .5rem; }
ul.checklist { list-style: none; padding-left: 0; margin: .25rem 0; }
ul.checklist li { padding: .15rem 0; }
.preview-body { margin: .25rem 0 .75rem; }
.preview-body table { border-collapse: collapse; }
.preview-body table td, .preview-body table th { border: 1px solid var(--border, rgba(128,128,128,.3)); padding: .2rem .4rem; }