:root {
    /* Dunkles Design (siehe dataviz-Skill: chart chrome & ink, dark-Spalte). Die App
       hat bewusst nur ein (dunkles) Theme, kein Toggle, daher fixe Werte statt
       prefers-color-scheme. */
    --color-bg: #0d0d0d;
    --color-surface: #1a1a19;
    --color-surface-hover: #202020;
    --color-text: #ffffff;
    --color-muted: #a9a79f;
    --color-border: #33332f;
    --color-primary: #3987e5;
    --color-primary-dark: #2a78d6;
    --color-primary-bg: rgba(57, 135, 229, 0.16);
    --color-primary-bg-hover: rgba(57, 135, 229, 0.28);
    --color-danger: #e66767;
    --color-danger-bg: rgba(230, 103, 103, 0.16);
    --color-danger-bg-hover: rgba(230, 103, 103, 0.28);
    --color-success-bg: rgba(12, 163, 12, 0.16);
    --color-success-text: #0ca30c;
    --color-warning-bg: rgba(250, 178, 25, 0.16);
    --color-warning-text: #fab219;
    --color-error-bg: rgba(230, 103, 103, 0.16);
    --color-error-text: #e66767;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.35), 0 8px 20px rgba(0, 0, 0, 0.35);
    --shadow-card-hover: 0 2px 4px rgba(0, 0, 0, 0.4), 0 12px 28px rgba(0, 0, 0, 0.45);

    /* dataviz-Tokens (chart chrome & ink, sequential blue + 3 weitere Kategorie-Slots
       fuer die Stat-Icons - jeweils die dark-Stufe aus der Palette). */
    --chart-text-primary: #ffffff;
    --chart-muted: #898781;
    --chart-gridline: #2c2c2a;
    --chart-series-1: #3987e5;
    --stat-icon-1-bg: rgba(57, 135, 229, 0.18);
    --stat-icon-1-fg: #3987e5;
    --stat-icon-2-bg: rgba(25, 158, 112, 0.18);
    --stat-icon-2-fg: #199e70;
    --stat-icon-3-bg: rgba(144, 133, 233, 0.18);
    --stat-icon-3-fg: #9085e9;
    --stat-icon-4-bg: rgba(43, 168, 74, 0.18);
    --stat-icon-4-fg: #2ba84a;
}

* {
    box-sizing: border-box;
}

html {
    color-scheme: dark;
}

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

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

.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem;
    padding: 0.9rem 1.5rem;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 10;
}

.site-header .brand {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.1rem;
    text-decoration: none;
    color: var(--color-text);
}

.site-header .brand svg {
    color: var(--color-primary);
}

.site-header nav {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.site-header nav a {
    text-decoration: none;
    color: var(--color-muted);
    font-size: 0.9rem;
    font-weight: 500;
}

.site-header nav a:hover {
    color: var(--color-primary);
}

.container {
    max-width: 1040px;
    margin: 0 auto;
    padding: 1.75rem 1.25rem 3rem;
}

.page-head {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.page-head h1 {
    font-size: 1.65rem;
    margin: 0 0 0.25rem;
}

.page-subtitle {
    color: var(--color-muted);
    font-size: 0.95rem;
    margin: 0;
}

h1 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.alert ul {
    margin: 0;
    padding-left: 1.1rem;
}

.alert-error {
    background: var(--color-error-bg);
    color: var(--color-error-text);
}

.alert-warning {
    background: var(--color-warning-bg);
    color: var(--color-warning-text);
}

.alert-success {
    background: var(--color-success-bg);
    color: var(--color-success-text);
}

.form {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    max-width: 420px;
    background: var(--color-surface);
    padding: 1.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-card);
}

.form label {
    font-weight: 600;
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.form input {
    padding: 0.65rem 0.75rem;
    font-size: 1rem;
    background: var(--color-bg);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    width: 100%;
}

.form input::placeholder {
    color: var(--color-muted);
}

.form input:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 1px;
}

button,
.button {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--color-primary);
    color: #fff;
    border: none;
    padding: 0.7rem 1.2rem;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    margin-top: 1rem;
    transition: background-color 0.15s ease, transform 0.15s ease;
}

button:hover,
.button:hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
}

.btn-sm {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.35rem 0.7rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    line-height: 1.2;
}

.btn-sm-outline {
    background: var(--color-primary-bg);
    color: var(--color-primary);
}

.btn-sm-outline:hover {
    background: var(--color-primary-bg-hover);
}

.btn-sm-danger {
    background: var(--color-danger-bg);
    color: var(--color-error-text);
}

.btn-sm-danger:hover {
    background: var(--color-danger-bg-hover);
}

.inline-form {
    display: inline;
}

.confirm-layout {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    align-items: flex-start;
}

.confirm-images {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.confirm-image {
    margin: 0;
    text-align: center;
}

.confirm-image .preview {
    max-width: 100%;
    width: 220px;
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    object-fit: contain;
    display: block;
    box-shadow: var(--shadow-card);
}

.confirm-image figcaption {
    margin-top: 0.5rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-muted);
}

@media (min-width: 700px) {
    .confirm-layout {
        flex-direction: row;
    }
}

/* Stat-Tiles (KPI-Zeile) */
.stat-tiles {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-tile {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.1rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.9rem;
    box-shadow: var(--shadow-card);
    transition: box-shadow 0.15s ease, transform 0.15s ease;
}

.stat-tile:hover {
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-1px);
}

.stat-icon {
    flex-shrink: 0;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon-1 {
    background: var(--stat-icon-1-bg);
    color: var(--stat-icon-1-fg);
}

.stat-icon-2 {
    background: var(--stat-icon-2-bg);
    color: var(--stat-icon-2-fg);
}

.stat-icon-3 {
    background: var(--stat-icon-3-bg);
    color: var(--stat-icon-3-fg);
}

.stat-icon-4 {
    background: var(--stat-icon-4-bg);
    color: var(--stat-icon-4-fg);
}

.stat-body {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    min-width: 0;
}

.stat-label {
    font-size: 0.78rem;
    color: var(--color-muted);
    font-weight: 600;
    white-space: nowrap;
}

.stat-value {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-text);
    white-space: nowrap;
}

/* Verlaufsdiagramm */
.chart-section {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.25rem 1.4rem 0.6rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-card);
}

.chart-section-head {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.85rem;
}

.chart-section-head svg {
    color: var(--chart-series-1);
    flex-shrink: 0;
}

.chart-section h2 {
    font-size: 1.02rem;
    margin: 0;
    color: var(--color-text);
}

.chart-empty {
    color: var(--color-muted);
    font-size: 0.9rem;
    margin: 0 0 1rem;
}

.chart-wrap {
    width: 100%;
    overflow-x: auto;
}

.price-chart {
    width: 100%;
    min-width: 560px;
    height: auto;
    display: block;
}

.chart-gridline {
    stroke: var(--chart-gridline);
    stroke-width: 1;
}

.chart-axis-label {
    fill: var(--chart-muted);
    font-size: 10px;
}

.chart-line {
    fill: none;
    stroke: var(--chart-series-1);
    stroke-width: 2;
    stroke-linejoin: round;
    stroke-linecap: round;
}

.chart-dot,
.chart-dot-end {
    fill: var(--chart-series-1);
    stroke: var(--color-surface);
    stroke-width: 2;
}

.chart-end-label {
    fill: var(--chart-text-primary);
    font-size: 11px;
    font-weight: 700;
}

.chart-end-label-halo {
    fill: none;
    stroke: var(--color-surface);
    stroke-width: 4;
    stroke-linejoin: round;
    font-size: 11px;
    font-weight: 700;
}

.table-wrap {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

table {
    width: 100%;
    border-collapse: collapse;
}

th,
td {
    padding: 0.85rem 1.1rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
    vertical-align: middle;
}

thead th {
    background: var(--color-primary-bg);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--color-primary);
    font-weight: 700;
}

tbody tr:last-child td {
    border-bottom: none;
}

tbody tr:hover {
    background: var(--color-surface-hover);
}

.thumb {
    width: 56px;
    height: 56px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    display: block;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.actions {
    white-space: nowrap;
}

.actions a,
.actions .inline-form {
    margin-right: 0.5rem;
}

/* Mobile: Tabelle wird zu gestapelten Karten */
@media (max-width: 640px) {
    thead {
        display: none;
    }

    table,
    tbody,
    tr,
    td {
        display: block;
        width: 100%;
    }

    tbody tr {
        padding: 0.9rem 1rem;
        border-bottom: 1px solid var(--color-border);
    }

    td {
        border: none;
        padding: 0.3rem 0;
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 1rem;
    }

    td[data-label]::before {
        content: attr(data-label);
        font-weight: 600;
        color: var(--color-muted);
        font-size: 0.8rem;
    }

    td[data-label="Beleg"],
    td[data-label="Tacho"] {
        justify-content: flex-start;
    }
}