:root {
    --color-bg: #f4f5f7;
    --color-surface: #ffffff;
    --color-border: #d7dbe0;
    --color-primary: #1b5e20;
    --color-primary-hover: #164a19;
    --color-error: #b3261e;
    --color-text: #1c1c1c;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
}

.auth-page {
    max-width: 360px;
    margin: 10vh auto;
    padding: 2rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
}

.auth-page h1 {
    font-size: 1.25rem;
    margin: 0 0 0.25rem;
}

.auth-page h2 {
    font-size: 1rem;
    font-weight: normal;
    color: #555;
    margin: 0 0 1.5rem;
}

form label {
    display: block;
    margin-top: 1rem;
    margin-bottom: 0.25rem;
    font-size: 0.9rem;
}

form input {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-size: 1rem;
}

button {
    margin-top: 1.5rem;
    padding: 0.6rem 1.2rem;
    background: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
}

button:hover {
    background: var(--color-primary-hover);
}

.error {
    color: var(--color-error);
    background: #fdecea;
    border: 1px solid #f5c6c3;
    border-radius: 4px;
    padding: 0.5rem 0.75rem;
    font-size: 0.9rem;
}

.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}

.app-header form {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 0;
}

.app-header button {
    margin-top: 0;
    padding: 0.4rem 0.9rem;
    font-size: 0.9rem;
}

main {
    padding: 1.5rem;
}

/* --- Navigation --- */

.app-header-left {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.app-header h1 {
    font-size: 1.1rem;
    margin: 0;
}

.app-header h1 a {
    color: inherit;
    text-decoration: none;
}

.app-header nav a {
    margin-right: 1rem;
    color: var(--color-text);
    text-decoration: none;
    padding-bottom: 2px;
    font-size: 0.9rem;
}

.app-header nav a.active {
    border-bottom: 2px solid var(--color-primary);
    font-weight: 600;
}

/* --- Formulare --- */

form select,
form textarea {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-size: 1rem;
}

.form-page,
.list-page,
.detail-page,
.calendar-page {
    max-width: 900px;
    margin: 1.5rem auto;
    background: var(--color-surface);
    padding: 1.5rem 2rem;
    border-radius: 8px;
    border: 1px solid var(--color-border);
}

.field-error {
    color: var(--color-error);
    font-size: 0.85rem;
    margin: 0.25rem 0 0;
}

.success {
    color: #1b5e20;
    background: #e8f5e9;
    border: 1px solid #c8e6c9;
    border-radius: 4px;
    padding: 0.5rem 0.75rem;
    font-size: 0.9rem;
}

fieldset {
    border: 1px solid var(--color-border);
    border-radius: 4px;
    margin-top: 1.5rem;
    padding: 1rem;
}

.destination-row {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    align-items: center;
}

.destination-row input {
    flex: 1;
}

.remove-destination {
    margin-top: 0;
    padding: 0.3rem 0.6rem;
    background: var(--color-error);
    flex: 0 0 auto;
}

.remove-destination:hover {
    background: #8f1f18;
}

#add-destination {
    margin-top: 0.5rem;
    background: #555;
}

#add-destination:hover {
    background: #333;
}

.route-preview {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.route-preview button {
    margin-top: 0;
    background: #555;
}

.route-preview button:hover {
    background: #333;
}

.route-preview span {
    font-size: 0.9rem;
    color: #444;
}

/* --- Kalender --- */

.calendar-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.calendar-controls h1 {
    margin: 0;
    font-size: 1.25rem;
}

.calendar-controls a {
    text-decoration: none;
    color: var(--color-primary);
    font-size: 0.9rem;
}

.calendar-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.85rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.cal-swatch {
    width: 14px;
    height: 14px;
    border-radius: 3px;
    display: inline-block;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
}

.calendar-weekday {
    font-weight: 600;
    text-align: center;
    padding: 0.5rem 0;
    font-size: 0.85rem;
    color: #555;
}

.calendar-day {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 70px;
    padding: 0.4rem;
    border-radius: 4px;
    text-decoration: none;
    color: #1c1c1c;
    font-size: 0.8rem;
}

.calendar-day-empty {
    visibility: hidden;
}

.calendar-day-number {
    font-weight: 600;
}

.calendar-day-free {
    font-size: 0.7rem;
}

.cal-free-5 { background: #66bb6a; }
.cal-free-4 { background: #a5d6a7; }
.cal-free-3 { background: #fff176; }
.cal-free-2 { background: #ffcc80; }
.cal-free-1 { background: #ffa726; }
.cal-free-0 { background: #e57373; }

/* --- Tabellen / Detailansicht --- */

.booking-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.booking-table th,
.booking-table td {
    text-align: left;
    padding: 0.5rem;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.9rem;
}

.booking-table th {
    color: #555;
    font-weight: 600;
}

.detail-list {
    display: grid;
    grid-template-columns: 220px 1fr;
    row-gap: 0.75rem;
    column-gap: 1rem;
    margin-top: 1rem;
}

.detail-list dt {
    font-weight: 600;
    color: #555;
}

.detail-list dd {
    margin: 0;
}

.public-footer {
    max-width: 360px;
    margin: 0 auto 2rem;
    text-align: center;
    font-size: 0.8rem;
    color: #777;
}

.public-footer a {
    color: #777;
}

.public-form-hint {
    margin-top: 1.5rem;
    text-align: center;
    font-size: 0.9rem;
}

.honeypot-field {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.cancel-form {
    margin-top: 1.5rem;
}

.conflict-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.conflict-card h2 {
    margin-top: 0;
    font-size: 1.1rem;
}

.conflict-card h3 {
    font-size: 0.95rem;
    color: #555;
    margin-top: 1.5rem;
}

.conflict-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.conflict-actions form {
    margin: 0;
}

.button-secondary {
    background: #757575;
}

.button-secondary:hover {
    background: #5a5a5a;
}

.badge {
    display: inline-block;
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffe69c;
    border-radius: 4px;
    padding: 0.15rem 0.5rem;
    font-size: 0.75rem;
    margin-left: 0.5rem;
}

/* --- Responsiv --- */

@media (max-width: 640px) {
    .app-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .app-header-left {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .form-page,
    .list-page,
    .detail-page,
    .calendar-page {
        margin: 0.75rem;
        padding: 1rem;
    }

    .detail-list {
        grid-template-columns: 1fr;
    }

    .detail-list dt {
        margin-top: 0.5rem;
    }

    .booking-table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }

    .calendar-controls {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .calendar-day {
        min-height: 48px;
        font-size: 0.7rem;
    }
}