/* ==========================================================
   style.css — Leasing-Dashboard
   Designsprache: nüchtern, datenfokussiert, wie ein gutes
   Finance-Tool. Dunkles Anthrazit, gedämpftes Petrol als Akzent,
   Bernstein für Kennzahlen-Highlights.
   ========================================================== */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600&family=Inter:wght@400;500;600;700&display=swap');

:root {
    --ink-900: #14161B;
    --ink-800: #1A1D23;
    --ink-700: #2A2E37;
    --ink-600: #3D4250;
    --ink-400: #6B7280;
    --paper: #F5F3EE;
    --paper-dim: #EAE7DF;
    --petrol: #4A9B8E;
    --petrol-dim: #3A7A70;
    --amber: #D4A24C;
    --amber-dim: #B8893A;
    --red-soft: #C2615A;

    --font-display: 'Fraunces', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    --radius: 10px;
    --radius-sm: 6px;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--ink-900);
    color: var(--paper);
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--petrol); text-decoration: none; }
a:hover { color: var(--amber); }

h1, h2, h3 {
    font-family: var(--font-display);
    font-weight: 500;
    margin: 0 0 0.4em 0;
    letter-spacing: -0.01em;
}

h1 { font-size: 1.9rem; }
h2 { font-size: 1.3rem; }
h3 { font-size: 1.05rem; color: var(--paper); opacity: 0.85; }

p { margin: 0 0 1em 0; }

/* ---------- Layout ---------- */

.app-shell {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 220px;
    flex-shrink: 0;
    background: var(--ink-800);
    border-right: 1px solid var(--ink-700);
    padding: 24px 18px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sidebar .brand {
    font-family: var(--font-display);
    font-size: 1.15rem;
    color: var(--paper);
    margin-bottom: 28px;
    padding-left: 4px;
}

.sidebar .brand .dot {
    color: var(--amber);
}

.sidebar nav a {
    display: block;
    color: var(--ink-400);
    padding: 9px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.92rem;
    font-weight: 500;
    transition: background 0.15s ease, color 0.15s ease;
}

.sidebar nav a:hover {
    background: var(--ink-700);
    color: var(--paper);
}

.sidebar nav a.active {
    background: var(--petrol);
    color: var(--ink-900);
}

.sidebar .spacer { flex: 1; }

.sidebar .user-box {
    font-size: 0.82rem;
    color: var(--ink-400);
    padding: 10px 12px;
    border-top: 1px solid var(--ink-700);
    margin-top: 8px;
}

.sidebar .user-box strong { color: var(--paper); display: block; }

.main {
    flex: 1;
    padding: 32px 40px;
    max-width: 1280px;
}

@media (max-width: 760px) {
    .app-shell {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        flex-direction: row;
        align-items: center;
        flex-wrap: wrap;
        padding: 14px 16px;
        gap: 0;
        border-right: none;
        border-bottom: 1px solid var(--ink-700);
    }

    .sidebar .brand {
        margin-bottom: 0;
        margin-right: auto;
    }

    .sidebar nav {
        display: flex;
        gap: 2px;
        order: 3;
        width: 100%;
        margin-top: 12px;
        overflow-x: auto;
    }

    .sidebar nav a {
        white-space: nowrap;
        padding: 7px 10px;
        font-size: 0.85rem;
    }

    .sidebar .spacer { display: none; }

    .sidebar .user-box {
        border-top: none;
        margin-top: 0;
        padding: 0;
        font-size: 0.78rem;
        text-align: right;
    }

    .sidebar .user-box strong { display: none; }

    .main {
        padding: 20px 16px;
    }

    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    table {
        font-size: 0.8rem;
    }

    th, td {
        padding: 8px 6px;
    }
}

/* ---------- Cards ---------- */

.card {
    background: var(--ink-800);
    border: 1px solid var(--ink-700);
    border-radius: var(--radius);
    padding: 22px 24px;
}

.card + .card { margin-top: 16px; }

.grid {
    display: grid;
    gap: 16px;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 900px) {
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ---------- Stat / KPI ---------- */

.stat-label {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--ink-400);
    margin-bottom: 6px;
}

.stat-value {
    font-family: var(--font-display);
    font-size: 1.8rem;
    color: var(--amber);
    font-variant-numeric: tabular-nums;
}

.stat-value.small { font-size: 1.3rem; color: var(--paper); }
.stat-sub { font-size: 0.82rem; color: var(--ink-400); margin-top: 4px; }

/* ---------- Vehicle Card ---------- */

.vehicle-card {
    background: var(--ink-800);
    border: 1px solid var(--ink-700);
    border-radius: var(--radius);
    padding: 20px 22px;
    transition: border-color 0.15s ease;
}

.vehicle-card:hover { border-color: var(--petrol-dim); }

.vehicle-card .vc-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 14px;
}

.vehicle-card .vc-title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    color: var(--paper);
}

.vehicle-card .vc-category {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 3px 9px;
    border-radius: 100px;
    background: var(--ink-700);
    color: var(--ink-400);
}

.vc-category.premium { background: rgba(212, 162, 76, 0.15); color: var(--amber); }
.vc-category.volumen { background: rgba(74, 155, 142, 0.15); color: var(--petrol); }

.vehicle-card .vc-rate {
    font-family: var(--font-display);
    font-size: 2.1rem;
    color: var(--amber);
    font-variant-numeric: tabular-nums;
    line-height: 1;
}

.vehicle-card .vc-rate-label {
    font-size: 0.78rem;
    color: var(--ink-400);
    margin-top: 2px;
}

.vc-details {
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px solid var(--ink-700);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px 16px;
    font-size: 0.86rem;
}

.vc-details .k { color: var(--ink-400); }
.vc-details .v { color: var(--paper); font-variant-numeric: tabular-nums; text-align: right; }

.vc-actions {
    margin-top: 14px;
    display: flex;
    gap: 8px;
}

/* ---------- Forms ---------- */

label {
    display: block;
    font-size: 0.82rem;
    color: var(--ink-400);
    margin-bottom: 5px;
    font-weight: 500;
}

input, select, textarea {
    width: 100%;
    background: var(--ink-900);
    border: 1px solid var(--ink-700);
    border-radius: var(--radius-sm);
    padding: 9px 11px;
    color: var(--paper);
    font-family: var(--font-body);
    font-size: 0.92rem;
}

input:focus, select:focus, textarea:focus {
    outline: 2px solid var(--petrol);
    outline-offset: 1px;
    border-color: var(--petrol);
}

.field { margin-bottom: 14px; }

.field-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 14px;
}

input[type="checkbox"] { width: auto; }
.checkbox-row { display: flex; align-items: center; gap: 8px; }
.checkbox-row label { margin: 0; }

/* ---------- Buttons ---------- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: var(--petrol);
    color: var(--ink-900);
    border: none;
    border-radius: var(--radius-sm);
    padding: 9px 16px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.88rem;
    cursor: pointer;
    transition: background 0.15s ease, transform 0.1s ease;
    text-decoration: none;
}

.btn:hover { background: var(--petrol-dim); }
.btn:active { transform: scale(0.98); }

.btn-secondary {
    background: transparent;
    color: var(--paper);
    border: 1px solid var(--ink-700);
}
.btn-secondary:hover { background: var(--ink-700); border-color: var(--ink-600); }

.btn-danger { background: var(--red-soft); color: var(--ink-900); }
.btn-danger:hover { background: #A84E48; }

.btn-sm { padding: 6px 12px; font-size: 0.8rem; }

/* ---------- Tables ---------- */

table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }

th {
    text-align: left;
    color: var(--ink-400);
    font-weight: 500;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 8px 12px;
    border-bottom: 1px solid var(--ink-700);
}

td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--ink-700);
    font-variant-numeric: tabular-nums;
}

tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(255,255,255,0.02); }

/* ---------- Auth Pages ---------- */

.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--ink-900);
}

.auth-box {
    width: 100%;
    max-width: 380px;
    background: var(--ink-800);
    border: 1px solid var(--ink-700);
    border-radius: var(--radius);
    padding: 36px 32px;
}

.auth-box .brand {
    font-family: var(--font-display);
    font-size: 1.6rem;
    text-align: center;
    margin-bottom: 6px;
}

.auth-box .brand .dot { color: var(--amber); }

.auth-box .subtitle {
    text-align: center;
    color: var(--ink-400);
    font-size: 0.88rem;
    margin-bottom: 26px;
}

.auth-box .btn { width: 100%; margin-top: 8px; padding: 11px; }

.auth-switch {
    text-align: center;
    margin-top: 18px;
    font-size: 0.86rem;
    color: var(--ink-400);
}

/* ---------- Alerts ---------- */

.alert {
    padding: 11px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.86rem;
    margin-bottom: 16px;
}

.alert-error {
    background: rgba(194, 97, 90, 0.15);
    color: #E0938D;
    border: 1px solid rgba(194, 97, 90, 0.3);
}

.alert-success {
    background: rgba(74, 155, 142, 0.15);
    color: #7FC4B8;
    border: 1px solid rgba(74, 155, 142, 0.3);
}

/* ---------- Misc ---------- */

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--ink-400);
}

.empty-state h3 { color: var(--paper); margin-bottom: 8px; }

.hint {
    font-size: 0.8rem;
    color: var(--ink-400);
    margin-top: 4px;
}

.section-divider {
    border: none;
    border-top: 1px solid var(--ink-700);
    margin: 24px 0;
}