@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@300;400;500;600;700&family=DM+Mono:wght@400;500&display=swap');

:root {
    --primary: #1a56db;
    --primary-dark: #1241a8;
    --primary-light: #e8f0fe;
    --secondary: #374151;
    --accent: #f59e0b;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --info: #3b82f6;

    --bg: #f3f4f8;
    --bg-card: #ffffff;
    --bg-sidebar: #1e2433;
    --bg-sidebar-hover: #2d3548;
    --text: #111827;
    --text-muted: #6b7280;
    --text-sidebar: #a0aec0;
    --text-sidebar-active: #ffffff;
    --border: #e5e7eb;
    --border-focus: #1a56db;

    --radius: 10px;
    --radius-sm: 6px;
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 4px 16px rgba(0,0,0,0.05);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);

    --sidebar-width: 260px;
    --header-height: 64px;

    --font: 'DM Sans', sans-serif;
    --font-mono: 'DM Mono', monospace;
}

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

html { font-size: 15px; }

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

/* ─── LAYOUT ─── */
.app-wrapper {
    display: flex;
    min-height: 100vh;
}

/* ─── SIDEBAR ─── */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    position: fixed;
    top: 0; left: 0; bottom: 0;
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: transform 0.3s ease;
}

.sidebar-logo {
    padding: 24px 20px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.sidebar-logo .logo-icon {
    width: 40px; height: 40px;
    background: var(--primary);
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 10px;
    font-size: 20px;
}

.sidebar-logo h1 {
    font-size: 0.95rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: 0.02em;
}

.sidebar-logo p {
    font-size: 0.72rem;
    color: var(--text-sidebar);
    margin-top: 2px;
}

.sidebar-nav {
    flex: 1;
    padding: 12px 0;
    overflow-y: auto;
}

.nav-section {
    padding: 16px 20px 6px;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(160,174,192,0.5);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 20px;
    color: var(--text-sidebar);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    border-left: 3px solid transparent;
    transition: all 0.15s ease;
    cursor: pointer;
}

.nav-item:hover {
    background: var(--bg-sidebar-hover);
    color: #fff;
    border-left-color: rgba(26,86,219,0.4);
}

.nav-item.active {
    background: rgba(26,86,219,0.15);
    color: #fff;
    border-left-color: var(--primary);
}

.nav-item .nav-icon {
    width: 20px;
    text-align: center;
    font-size: 1rem;
    flex-shrink: 0;
}

.nav-item .badge {
    margin-left: auto;
    background: var(--primary);
    color: #fff;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 1px 6px;
    border-radius: 10px;
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid rgba(255,255,255,0.06);
    font-size: 0.75rem;
    color: rgba(160,174,192,0.4);
}

/* ─── MAIN ─── */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ─── TOPBAR ─── */
.topbar {
    height: var(--header-height);
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 28px;
    gap: 16px;
    position: sticky;
    top: 0;
    z-index: 50;
}

.topbar-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text);
    flex: 1;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.topbar-user {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    background: var(--bg);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--secondary);
}

.topbar-user .level-badge {
    background: var(--primary-light);
    color: var(--primary);
    font-size: 0.65rem;
    font-weight: 700;
    padding: 1px 7px;
    border-radius: 4px;
}

/* ─── PAGE ─── */
.page-content {
    padding: 28px;
    flex: 1;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    gap: 16px;
    flex-wrap: wrap;
}

.page-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
}

.page-header p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 2px;
}

/* ─── CARDS ─── */
.card {
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.card-header {
    padding: 18px 22px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.card-header h3 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text);
}

.card-body {
    padding: 22px;
}

/* ─── STATS ─── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 22px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.stat-icon {
    width: 46px; height: 46px;
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.stat-icon.blue   { background: var(--primary-light); }
.stat-icon.green  { background: #d1fae5; }
.stat-icon.amber  { background: #fef3c7; }
.stat-icon.red    { background: #fee2e2; }
.stat-icon.purple { background: #ede9fe; }

.stat-value {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text);
    line-height: 1;
    font-family: var(--font-mono);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 3px;
    font-weight: 500;
}

/* ─── BUTTONS ─── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-family: var(--font);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.15s ease;
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
}
.btn-primary:hover { background: var(--primary-dark); }

.btn-secondary {
    background: var(--bg);
    color: var(--secondary);
    border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--border); }

.btn-success {
    background: var(--success);
    color: #fff;
}
.btn-success:hover { background: #059669; }

.btn-danger {
    background: var(--danger);
    color: #fff;
}
.btn-danger:hover { background: #dc2626; }

.btn-warning {
    background: var(--warning);
    color: #fff;
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 1px solid var(--primary);
}
.btn-outline:hover { background: var(--primary-light); }

.btn-sm { padding: 5px 11px; font-size: 0.78rem; }
.btn-lg { padding: 11px 22px; font-size: 0.95rem; }

.btn:disabled, .btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* ─── FORMS ─── */
.form-grid {
    display: grid;
    gap: 18px;
}
.form-grid.cols-2 { grid-template-columns: 1fr 1fr; }
.form-grid.cols-3 { grid-template-columns: 1fr 1fr 1fr; }

.form-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.form-group.span-2 { grid-column: span 2; }
.form-group.span-3 { grid-column: span 3; }

label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--secondary);
    letter-spacing: 0.01em;
}

label .required { color: var(--danger); margin-left: 2px; }

.form-control {
    padding: 8px 12px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font);
    font-size: 0.875rem;
    color: var(--text);
    background: #fff;
    transition: border-color 0.15s, box-shadow 0.15s;
    outline: none;
    width: 100%;
}

.form-control:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(26,86,219,0.1);
}

.form-control:disabled {
    background: var(--bg);
    color: var(--text-muted);
    cursor: not-allowed;
}

textarea.form-control { resize: vertical; min-height: 100px; }

.form-check {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 0.875rem;
}

.form-check input[type="checkbox"] {
    width: 16px; height: 16px;
    accent-color: var(--primary);
    cursor: pointer;
}

/* ─── TABLE ─── */
.table-wrapper {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.855rem;
}

thead th {
    padding: 10px 14px;
    text-align: left;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    background: var(--bg);
    border-bottom: 2px solid var(--border);
    white-space: nowrap;
    cursor: pointer;
    user-select: none;
}

thead th:hover { color: var(--text); }
thead th.sort-asc::after  { content: ' ↑'; color: var(--primary); }
thead th.sort-desc::after { content: ' ↓'; color: var(--primary); }

tbody tr {
    border-bottom: 1px solid var(--border);
    transition: background 0.1s;
}

tbody tr:hover { background: #f8f9ff; }
tbody tr:last-child { border-bottom: none; }

tbody td {
    padding: 11px 14px;
    vertical-align: middle;
}

.table-actions {
    display: flex;
    gap: 5px;
    justify-content: flex-end;
}

/* ─── BADGES ─── */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 9px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 700;
    white-space: nowrap;
}

.badge-success { background: #d1fae5; color: #065f46; }
.badge-danger  { background: #fee2e2; color: #991b1b; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-info    { background: #dbeafe; color: #1e40af; }
.badge-gray    { background: #f3f4f6; color: #374151; }
.badge-purple  { background: #ede9fe; color: #5b21b6; }

/* ─── SEARCH / FILTER BAR ─── */
.filter-bar {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
    padding: 14px 0;
}

.search-input-wrap {
    position: relative;
    flex: 1;
    min-width: 200px;
}

.search-input-wrap .search-icon {
    position: absolute;
    left: 12px; top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 0.9rem;
    pointer-events: none;
}

.search-input-wrap .form-control {
    padding-left: 36px;
}

/* ─── ALERTS ─── */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    margin-bottom: 16px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.alert-success { background: #d1fae5; color: #065f46; border: 1px solid #a7f3d0; }
.alert-danger  { background: #fee2e2; color: #991b1b; border: 1px solid #fca5a5; }
.alert-warning { background: #fef3c7; color: #92400e; border: 1px solid #fde68a; }
.alert-info    { background: #dbeafe; color: #1e40af; border: 1px solid #bfdbfe; }

/* ─── PAGINATION ─── */
.pagination {
    display: flex;
    align-items: center;
    gap: 4px;
    justify-content: center;
    padding-top: 16px;
}

.page-link {
    padding: 6px 11px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--secondary);
    text-decoration: none;
    background: #fff;
    transition: all 0.15s;
}

.page-link:hover   { background: var(--primary-light); color: var(--primary); border-color: var(--primary); }
.page-link.active  { background: var(--primary); color: #fff; border-color: var(--primary); }
.page-link.disabled { opacity: 0.4; pointer-events: none; }

/* ─── MODAL ─── */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(17,24,39,0.6);
    backdrop-filter: blur(3px);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}

.modal-overlay.open {
    opacity: 1;
    pointer-events: all;
}

.modal {
    background: #fff;
    border-radius: 14px;
    width: 100%;
    max-width: 680px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
    transform: translateY(20px);
    transition: transform 0.2s;
}

.modal-overlay.open .modal { transform: translateY(0); }

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 { font-size: 1rem; font-weight: 700; }

.modal-close {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.3rem;
    color: var(--text-muted);
    padding: 4px;
    border-radius: 4px;
    transition: color 0.15s;
}
.modal-close:hover { color: var(--text); }

.modal-body {
    padding: 24px;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* ─── TABS ─── */
.tabs {
    display: flex;
    border-bottom: 2px solid var(--border);
    margin-bottom: 22px;
    gap: 2px;
}

.tab-btn {
    padding: 10px 18px;
    background: none;
    border: none;
    cursor: pointer;
    font-family: var(--font);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all 0.15s;
}

.tab-btn:hover  { color: var(--text); }
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }

.tab-pane { display: none; }
.tab-pane.active { display: block; }

/* ─── MEMBER DETAIL ─── */
.member-header-card {
    background: linear-gradient(135deg, var(--bg-sidebar) 0%, #2d3a52 100%);
    border-radius: var(--radius);
    padding: 28px;
    color: #fff;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 22px;
}

.member-avatar {
    width: 72px; height: 72px;
    border-radius: 50%;
    background: rgba(26,86,219,0.3);
    border: 3px solid rgba(255,255,255,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: 800;
    color: #fff;
    flex-shrink: 0;
}

.member-header-info h2 {
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: -0.01em;
}

.member-header-info p {
    color: rgba(255,255,255,0.6);
    font-size: 0.85rem;
    margin-top: 3px;
}

.member-header-badges {
    display: flex;
    gap: 8px;
    margin-top: 10px;
    flex-wrap: wrap;
}

.member-header-badges .badge {
    background: rgba(255,255,255,0.15);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.2);
}

/* ─── ANWESENHEIT ─── */
.anwesenheit-btn {
    width: 36px; height: 36px;
    border-radius: 50%;
    border: 2px solid var(--border);
    background: #fff;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
    transition: all 0.15s;
}

.anwesenheit-btn[data-val="1"] { background: var(--success); border-color: var(--success); color: #fff; }
.anwesenheit-btn[data-val="2"] { background: var(--danger);  border-color: var(--danger);  color: #fff; }
.anwesenheit-btn[data-val="3"] { background: var(--warning); border-color: var(--warning); color: #fff; }

/* ─── UTILS ─── */
.text-muted   { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-danger  { color: var(--danger); }
.text-center  { text-align: center; }
.mt-4  { margin-top: 16px; }
.mb-4  { margin-bottom: 16px; }
.gap-2 { gap: 8px; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.w-full { width: 100%; }

.divider {
    height: 1px;
    background: var(--border);
    margin: 20px 0;
}

/* ─── EMPTY STATE ─── */
.empty-state {
    text-align: center;
    padding: 52px 20px;
    color: var(--text-muted);
}

.empty-state .empty-icon {
    font-size: 2.8rem;
    margin-bottom: 12px;
    opacity: 0.3;
}

.empty-state h4 { font-size: 1rem; color: var(--text); margin-bottom: 6px; }
.empty-state p  { font-size: 0.875rem; }

/* ─── TOOLTIP ─── */
[data-tooltip] { position: relative; cursor: pointer; }
[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 6px);
    left: 50%; transform: translateX(-50%);
    background: #1e2433;
    color: #fff;
    font-size: 0.72rem;
    padding: 4px 9px;
    border-radius: 4px;
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.15s;
    z-index: 999;
}
[data-tooltip]:hover::after { opacity: 1; }

/* ─── RESPONSIVE ─── */
@media (max-width: 900px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .main-content {
        margin-left: 0;
    }
    .form-grid.cols-2,
    .form-grid.cols-3 {
        grid-template-columns: 1fr;
    }
    .form-group.span-2,
    .form-group.span-3 {
        grid-column: span 1;
    }
    .page-content { padding: 16px; }
}

@media (max-width: 600px) {
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .filter-bar { flex-direction: column; align-items: stretch; }
    .modal { border-radius: 14px 14px 0 0; max-height: 95vh; }
    .modal-overlay { align-items: flex-end; padding: 0; }
}

/* ─── PRINT ─── */
@media print {
    .sidebar, .topbar, .topbar-actions, .btn, .filter-bar, .table-actions, .pagination { display: none !important; }
    .main-content { margin-left: 0; }
    .card { box-shadow: none; border: 1px solid #ddd; }
    body { background: #fff; }
}

/* ─── SCROLLBAR ─── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #d1d5db; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #9ca3af; }

/* ─── SPINNER ─── */
.spinner {
    display: inline-block;
    width: 18px; height: 18px;
    border: 2px solid currentColor;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── TOGGLE SWITCH ─── */
.toggle-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
}

input.toggle {
    width: 40px; height: 22px;
    appearance: none;
    background: var(--border);
    border-radius: 11px;
    position: relative;
    cursor: pointer;
    transition: background 0.2s;
    flex-shrink: 0;
}

input.toggle::before {
    content: '';
    position: absolute;
    width: 16px; height: 16px;
    border-radius: 50%;
    background: #fff;
    top: 3px; left: 3px;
    transition: left 0.2s;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}

input.toggle:checked {
    background: var(--primary);
}
input.toggle:checked::before { left: 21px; }

/* ─── SESSION STATUS ─── */
.sitzung-row-selected { background: #eff6ff !important; }

/* ─── DATUM SECTION HEADER ─── */
.date-section-header {
    background: var(--bg);
    padding: 8px 14px;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--text-muted);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border-bottom: 1px solid var(--border);
}