/* ============================================================
   FAHRTENBUCH – Globale Styles
   Dunkles, modernes Design
   ============================================================ */

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --bg-main:      #121212;
    --bg-surface:   #1e1e1e;
    --bg-elevated:  #252525;
    --bg-input:     #2a2a2a;
    --border:       #2d2d2d;
    --border-input: #3d3d3d;
    --text:         #e0e0e0;
    --text-muted:   #888888;
    --accent:       #ffdd00;
    --accent-text:  #000000;
    --danger:       #e53935;
    --success:      #43a047;
    --radius:       6px;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg-main);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.5;
}

/* ============================================================
   BUTTONS
   ============================================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.55rem 1.2rem;
    border: none;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    text-decoration: none;
    transition: opacity 0.15s, transform 0.1s;
    white-space: nowrap;
}

.btn:hover  { opacity: 0.85; }
.btn:active { transform: scale(0.97); }

.btn-primary  { background: var(--accent); color: var(--accent-text); }
.btn-outline  { background: transparent; color: var(--text); border: 1px solid var(--border-input); }
.btn-outline:hover { background: var(--bg-elevated); }
.btn-danger   { background: var(--danger); color: #fff; }
.btn-sm       { padding: 0.3rem 0.75rem; font-size: 0.8rem; }
.btn-full     { width: 100%; }

.btn-icon {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.1rem;
    cursor: pointer;
    padding: 0.4rem;
    border-radius: var(--radius);
    line-height: 1;
    transition: color 0.15s, background 0.15s;
}
.btn-icon:hover { color: var(--text); background: var(--bg-elevated); }

.btn-link {
    background: none;
    border: none;
    color: var(--accent);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    font-family: inherit;
}
.btn-link:hover { text-decoration: underline; }

/* ============================================================
   APP HEADER
   ============================================================ */

.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    height: 60px;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: -0.02em;
}

.header-logo {
    height: 50px;
    width: 50px;
    object-fit: contain;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.user-info {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.user-info-clickable {
    cursor: pointer;
    border-bottom: 1px dashed var(--text-muted);
    transition: color 0.15s;
}
.user-info-clickable:hover {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

/* ============================================================
   MAIN CONTENT
   ============================================================ */

.main-content {
    padding: 1.5rem;
    max-width: 1400px;
    margin: 0 auto;
}

.page-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 1.25rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ============================================================
   DATA TABLE
   ============================================================ */

.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.data-table thead {
    background: var(--bg-surface);
}

.data-table th {
    padding: 0.75rem 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.data-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

.data-table tbody tr {
    background: var(--bg-main);
    cursor: pointer;
    transition: background 0.1s;
}

.data-table tbody tr:hover {
    background: var(--bg-elevated);
}

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

/* Eigene Einträge werden mit einem gelben Streifen markiert */
.data-table tbody tr.own-row {
    border-left: 3px solid var(--accent);
}

.empty-row td,
.loading-row td {
    text-align: center;
    color: var(--text-muted);
    padding: 3rem !important;
    cursor: default;
}

/* Badge "Eigene" */
.badge {
    display: inline-block;
    padding: 0.1rem 0.45rem;
    background: var(--accent);
    color: var(--accent-text);
    border-radius: 999px;
    font-size: 0.65rem;
    font-weight: 700;
    vertical-align: middle;
    margin-left: 0.3rem;
}

/* ============================================================
   MODAL
   ============================================================ */

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
}

.modal-container {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    width: 100%;
    max-width: 720px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.modal-header h2 {
    font-size: 1.05rem;
    color: var(--text);
}

.modal-body {
    overflow-y: auto;
    padding: 1.5rem;
    flex: 1;
}

.modal-footer {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border);
    flex-shrink: 0;
}

/* ============================================================
   FORM
   ============================================================ */

.form-section {
    margin-bottom: 1.75rem;
}

.form-section h3 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    margin-bottom: 0.85rem;
}

.form-group label {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
    padding: 0.55rem 0.75rem;
    background: var(--bg-input);
    border: 1px solid var(--border-input);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 0.9rem;
    font-family: inherit;
    outline: none;
    transition: border-color 0.15s;
    width: 100%;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--accent);
}

.form-group input[readonly],
.form-group input:disabled,
.form-group textarea:disabled,
.form-group select:disabled {
    background: var(--bg-main);
    color: var(--text-muted);
    cursor: default;
    border-color: var(--border);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

/* Datums-Icon in dunklen Themes sichtbar machen */
input[type="date"]::-webkit-calendar-picker-indicator {
    filter: invert(0.7);
    cursor: pointer;
}

/* File-Input im Dark-Theme */
.form-group input[type="file"] {
    padding: 0.4rem 0;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border-input);
    border-radius: 0;
    color: var(--text-muted);
    cursor: pointer;
}
.form-group input[type="file"]::-webkit-file-upload-button {
    background: var(--bg-elevated);
    border: 1px solid var(--border-input);
    border-radius: var(--radius);
    color: var(--text);
    padding: 0.25rem 0.75rem;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.8rem;
    margin-right: 0.5rem;
}

/* ============================================================
   UNTERSCHRIFT (CANVAS)
   ============================================================ */

.signature-wrapper {
    border: 2px dashed var(--border-input);
    border-radius: var(--radius);
    background: #ffffff;
    overflow: hidden;
    margin-bottom: 0.5rem;
    position: relative;
}

#signatureCanvas {
    display: block;
    width: 100%;
    height: 160px;
    cursor: crosshair;
    touch-action: none; /* Verhindert Scrollen beim Unterschreiben auf Touch-Geräten */
}

.signature-view-img {
    display: block;
    width: 100%;
    height: 160px;
    object-fit: contain;
    background: #fff;
}

.no-signature-text {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 160px;
    color: #aaa;
    font-style: italic;
    font-size: 0.85rem;
    background: #fff;
}

/* ============================================================
   LOGIN PAGE
   ============================================================ */

.login-page {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 1rem;
}

.login-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.5rem;
    width: 100%;
    max-width: 380px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

.login-logo {
    display: flex;
    justify-content: center;
    margin-bottom: 1rem;
}

.login-logo img {
    max-height: 60px;
    max-width: 100%;
    object-fit: contain;
}

.login-card h1 {
    font-size: 1.7rem;
    color: var(--accent);
    margin-bottom: 0.25rem;
    text-align: center;
}

.login-card .login-subtitle {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 2rem;
    text-align: center;
}

/* ============================================================
   MELDUNGEN
   ============================================================ */

.msg-error {
    background: rgba(229, 57, 53, 0.15);
    border: 1px solid rgba(229, 57, 53, 0.5);
    border-radius: var(--radius);
    color: #ef9a9a;
    padding: 0.75rem 1rem;
    font-size: 0.85rem;
    margin-top: 0.75rem;
}

.msg-success {
    background: rgba(67, 160, 71, 0.15);
    border: 1px solid rgba(67, 160, 71, 0.5);
    border-radius: var(--radius);
    color: #a5d6a7;
    padding: 0.75rem 1rem;
    font-size: 0.85rem;
    margin-top: 0.75rem;
}

/* ============================================================
   ADMIN: TAB-NAVIGATION
   ============================================================ */

.tab-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
    gap: 1rem;
    flex-wrap: wrap;
}

.tab-buttons {
    display: flex;
    gap: 0.25rem;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.25rem;
}

.tab-btn {
    padding: 0.45rem 1.1rem;
    border: none;
    border-radius: calc(var(--radius) - 2px);
    background: transparent;
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
}

.tab-btn:hover  { color: var(--text); }
.tab-btn.active { background: var(--bg-elevated); color: var(--text); }

.tab-content { }

/* ============================================================
   ADMIN: USER-TABELLE AKTIONEN
   ============================================================ */

.action-cell {
    display: flex;
    gap: 0.4rem;
    align-items: center;
}

/* ============================================================
   FOOTER-CREDIT (Login-Seite)
   ============================================================ */

.footer-credit {
    color: var(--text-muted);
    font-size: 0.65rem;
    font-style: italic;
    text-align: center;
    margin-top: 1rem;
}

.footer-credit a {
    color: var(--text-muted);
    text-decoration: none;
}

.footer-credit a:hover {
    text-decoration: underline;
}

/* ============================================================
   HILFKLASSEN
   ============================================================ */

.hidden { display: none !important; }
.text-muted { color: var(--text-muted); }
.mt-1 { margin-top: 0.5rem; }

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }

    .header-actions .user-info {
        display: none;
    }

    .main-content {
        padding: 1rem;
    }

    .modal-container {
        max-height: 95vh;
    }
}

@media (max-width: 580px) {
    /* Weniger wichtige Spalten auf Mobilgeräten ausblenden */
    .data-table .col-hide-mobile {
        display: none;
    }

    .app-header {
        padding: 0 1rem;
    }
}