/* ============================================================
   common.css – Zentrales Design für die Schulplattform
   ============================================================ */

/* AbeeZee wird nur für Schülerdokumente genutzt, nicht global */
/* @font-face für AbeeZee siehe common/fonts/ – bei Bedarf einbinden */

/* --- CSS-Variablen (Light Mode) --- */
:root {
    --bg-primary:    #f4f6f9;
    --bg-secondary:  #ffffff;
    --bg-sidebar:     #343a40;
    --bg-topbar:      #007bff;
    --text-primary:  #212529;
    --text-secondary:#6c757d;
    --text-topbar:   #ffffff;
    --text-sidebar:  #c2c7d0;
    --border-color:  #dee2e6;
    --link-color:    #007bff;
    --hover-bg:      #e9ecef;
    --table-stripe:  #f8f9fa;
    --table-hover:   #e2e6ea;
    --danger:        #dc3545;
    --success:       #28a745;
    --warning:       #ffc107;
    --info:          #17a2b8;
    --shadow:        0 2px 4px rgba(0,0,0,.08);
    --radius:        .375rem;
    --transition:    .2s ease;

    /* Rollenfarben (fast schwarz, aber erkennbar farbig) */
    --color-schueler: #0a1a3a;
    --color-eltern:  #3a0a0a;
    --color-lehrer:  #0a3a0a;
}

/* --- Dark Mode --- */
[data-theme="dark"] {
    --bg-primary:    #1a1a2e;
    --bg-secondary:  #16213e;
    --bg-sidebar:     #0f3460;
    --bg-topbar:      #0f3460;
    --text-primary:  #e0e0e0;
    --text-secondary:#a0a0a0;
    --text-topbar:   #e0e0e0;
    --text-sidebar:  #c2c7d0;
    --border-color:  #2a2a4a;
    --link-color:    #64b5f6;
    --hover-bg:      #1e1e3f;
    --table-stripe:  #1e1e3f;
    --table-hover:   #2a2a5a;
    --shadow:        0 2px 4px rgba(0,0,0,.3);

    /* Rollenfarben (fast weiß, aber erkennbar farbig) */
    --color-schueler: #b0c4ff;
    --color-eltern:  #ffb0b0;
    --color-lehrer:  #b0ffb0;
}

/* --- Grundlagen --- */
*, *::before, *::after {
    box-sizing: border-box;
}

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

body {
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", "Liberation Sans", Arial, sans-serif;
    line-height: 1.5;
    color: var(--text-primary);
    background: var(--bg-primary);
    margin: 0;
    padding: 0;
    min-height: 100vh;
    transition: background var(--transition), color var(--transition);
}

a {
    color: var(--link-color);
    text-decoration: none;
}
a:hover, a:focus {
    text-decoration: underline;
}

/* --- Rollen-Farben --- */
.role-color-schueler { color: var(--color-schueler); }
.role-color-eltern   { color: var(--color-eltern); }
.role-color-lehrer   { color: var(--color-lehrer); }
.role-bg-schueler { background-color: var(--color-schueler); color: #fff; }
.role-bg-eltern   { background-color: var(--color-eltern); color: #fff; }
.role-bg-lehrer   { background-color: var(--color-lehrer); color: #fff; }
[data-theme="dark"] .role-bg-schueler,
[data-theme="dark"] .role-bg-eltern,
[data-theme="dark"] .role-bg-lehrer { color: #111; }

/* Barrierefreiheit: Focus-Indicator */
:focus-visible {
    outline: 3px solid var(--link-color);
    outline-offset: 2px;
}

/* --- Layout: AdminLTE-ähnlich --- */

/* Topbar */
.qaa-topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 56px;
    background: var(--bg-topbar);
    color: var(--text-topbar);
    display: flex;
    align-items: center;
    padding: 0 1rem;
    z-index: 1040;
    box-shadow: var(--shadow);
}

.qaa-topbar .topbar-left {
    display: flex;
    align-items: center;
    gap: .5rem;
}

.qaa-topbar .topbar-right {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: .75rem;
}

.qaa-topbar button,
.qaa-topbar a {
    background: none;
    border: none;
    color: var(--text-topbar);
    font-size: 1.2rem;
    cursor: pointer;
    padding: .25rem .5rem;
    border-radius: var(--radius);
    transition: background var(--transition);
}
.qaa-topbar button:hover,
.qaa-topbar button:focus,
.qaa-topbar a:hover,
.qaa-topbar a:focus {
    background: rgba(255,255,255,.15);
    text-decoration: none;
}

.qaa-topbar .topbar-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-left: .5rem;
}

/* Sidebar */
.qaa-sidebar {
    position: fixed;
    top: 56px;
    left: -280px;
    bottom: 0;
    width: 280px;
    background: var(--bg-sidebar);
    color: var(--text-sidebar);
    z-index: 1035;
    transition: left var(--transition);
    overflow-y: auto;
    padding: 1rem 0;
}

.qaa-sidebar.open {
    left: 0;
}

.qaa-sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.4);
    z-index: 1030;
}

.qaa-sidebar.open ~ .qaa-sidebar-overlay {
    display: block;
}

.qaa-sidebar .sidebar-header {
    padding: .75rem 1rem;
    border-bottom: 1px solid rgba(255,255,255,.1);
    margin-bottom: .5rem;
}
.qaa-sidebar .sidebar-header .module-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: #fff;
}
.qaa-sidebar .sidebar-header .user-name {
    font-size: .85rem;
    color: var(--text-sidebar);
    margin-top: .25rem;
}

.qaa-sidebar .sidebar-nav {
    list-style: none;
    padding: 0;
    margin: 0;
}
.qaa-sidebar .sidebar-nav li a {
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: .6rem 1rem;
    color: var(--text-sidebar);
    transition: background var(--transition), color var(--transition);
    font-size: .95rem;
}
.qaa-sidebar .sidebar-nav li a:hover,
.qaa-sidebar .sidebar-nav li a:focus,
.qaa-sidebar .sidebar-nav li a.active {
    background: rgba(255,255,255,.08);
    color: #fff;
    text-decoration: none;
}
.qaa-sidebar .sidebar-nav li a i {
    width: 1.5rem;
    text-align: center;
}

/* Hauptinhalt */
.qaa-content {
    margin-top: 56px;
    padding: 1.5rem;
    min-height: calc(100vh - 56px);
    background: var(--bg-primary);
    transition: background var(--transition);
}

/* --- Karten --- */
.qaa-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 1.25rem;
    transition: background var(--transition), border-color var(--transition);
}
.qaa-card .card-header {
    padding: .75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.qaa-card .card-body {
    padding: 1rem;
}

/* --- QAA-Tabelle (filterbar/sortierbar) --- */
.qaa-table-controls {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    margin-bottom: .75rem;
    align-items: center;
}

.qaa-table-controls input[type="text"],
.qaa-table-controls input[type="search"] {
    flex: 1 1 200px;
    padding: .4rem .75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: .9rem;
    height: 2.25rem;
}

/* Filter-Dropdowns in Tabellen-Controls */
.qaa-table-controls select.qaa-table-filter {
    padding: .4rem .75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: .9rem;
    min-width: 120px;
    cursor: pointer;
    height: 2.25rem;
}

.qaa-table-controls .column-toggle .btn-qaa {
    height: 2.25rem;
    line-height: 1;
}

.qaa-table-controls .column-toggle {
    position: relative;
}
.qaa-table-controls .column-toggle-menu {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: .5rem;
    z-index: 100;
    min-width: 180px;
}
.qaa-table-controls .column-toggle-menu.show {
    display: block;
}
.qaa-table-controls .column-toggle-menu label {
    display: block;
    padding: .2rem .25rem;
    font-size: .85rem;
    cursor: pointer;
    white-space: nowrap;
}

.qaa-table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

table.qaa-table {
    width: 100%;
    border-collapse: collapse;
    font-size: .9rem;
}

table.qaa-table th,
table.qaa-table td {
    padding: .55rem .75rem;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
    vertical-align: middle;
    white-space: nowrap;
}

table.qaa-table thead th {
    background: var(--bg-secondary);
    font-weight: 600;
    position: sticky;
    top: 0;
    cursor: pointer;
    user-select: none;
}

table.qaa-table thead th:hover {
    background: var(--hover-bg);
}

table.qaa-table thead th .sort-icon {
    margin-left: .3rem;
    opacity: .4;
    font-size: .75rem;
}
table.qaa-table thead th .sort-icon.active {
    opacity: 1;
}

table.qaa-table tbody tr:nth-child(even) {
    background: var(--table-stripe);
}
table.qaa-table tbody tr:hover {
    background: var(--table-hover);
}

/* Versteckte Spalten */
table.qaa-table th.col-hidden,
table.qaa-table td.col-hidden {
    display: none;
}

/* --- Buttons --- */
.btn-qaa {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    padding: .35rem .75rem;
    font-size: .875rem;
    border: 1px solid transparent;
    border-radius: var(--radius);
    cursor: pointer;
    transition: background var(--transition), color var(--transition);
    font-family: inherit;
    line-height: 1.2;
}
.btn-qaa-primary   { background: #007bff; color: #fff; }
.btn-qaa-primary:hover { background: #0056b3; }
.btn-qaa-success   { background: var(--success); color: #fff; }
.btn-qaa-success:hover { background: #1e7e34; }
.btn-qaa-danger    { background: var(--danger); color: #fff; }
.btn-qaa-danger:hover  { background: #a71d2a; }
.btn-qaa-secondary { background: var(--text-secondary); color: #fff; }
.btn-qaa-secondary:hover { background: #545b62; }
.btn-qaa-sm { padding: .2rem .5rem; font-size: .8rem; }

/* --- Formulare --- */
.qaa-form-group {
    margin-bottom: 1rem;
}
.qaa-form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: .375rem;
    font-size: .875rem;
}
.qaa-form-group input,
.qaa-form-group select,
.qaa-form-group textarea {
    width: 100%;
    padding: .375rem .75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color var(--transition);
}
.qaa-form-group input:focus,
.qaa-form-group select:focus,
.qaa-form-group textarea:focus {
    border-color: var(--link-color);
    outline: none;
    box-shadow: 0 0 0 .25rem rgba(13,110,253,.25);
}

/* Validierungsfeedback */
.qaa-form-group .invalid-feedback {
    color: var(--danger);
    font-size: .8rem;
    margin-top: .2rem;
}
.qaa-form-group input.is-invalid,
.qaa-form-group select.is-invalid {
    border-color: var(--danger);
}

/* --- Formular-Zeilen (Felder nebeneinander) --- */
.qaa-form-row {
    display: flex;
    gap: .75rem;
    flex-wrap: wrap;
    margin-bottom: .75rem;
}
.qaa-form-row > .qaa-form-group {
    flex: 1 1 0;
    min-width: 120px;
}

/* Floating labels in qaa-form-row */
.qaa-form-row > .form-floating {
    min-width: 120px;
}

/* Floating labels: Dark-Mode-Anpassung */
[data-theme="dark"] .form-floating > .form-control,
[data-theme="dark"] .form-floating > .form-select {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border-color: var(--border-color);
}
[data-theme="dark"] .form-floating > label {
    color: var(--text-secondary);
}
[data-theme="dark"] .form-check-input {
    background-color: var(--bg-secondary);
    border-color: var(--border-color);
}
[data-theme="dark"] .form-check-input:checked {
    background-color: var(--link-color);
    border-color: var(--link-color);
}

/* --- Formular-Sektionen --- */
.qaa-form-section {
    border-top: 2px solid var(--border-color);
    margin-top: .75rem;
    padding-top: .5rem;
    margin-bottom: .5rem;
}
.qaa-form-section-title {
    font-weight: 600;
    font-size: .875rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: .05em;
    margin-bottom: .5rem;
}

/* --- Toggle-Switch --- */
.qaa-switch {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    cursor: pointer;
    font-size: .9rem;
    user-select: none;
}
.qaa-switch input[type="checkbox"] {
    display: none;
}
.qaa-switch .switch-track {
    width: 36px;
    height: 20px;
    background: var(--text-secondary);
    border-radius: 10px;
    position: relative;
    transition: background var(--transition);
    flex-shrink: 0;
}
.qaa-switch .switch-track::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 16px;
    height: 16px;
    background: #fff;
    border-radius: 50%;
    transition: transform var(--transition);
}
.qaa-switch input:checked + .switch-track {
    background: var(--success);
}
.qaa-switch input:checked + .switch-track::after {
    transform: translateX(16px);
}
.qaa-switch input:focus-visible + .switch-track {
    outline: 3px solid var(--link-color);
    outline-offset: 2px;
}

/* --- Rollen-Chips --- */
.qaa-role-toggle {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    cursor: pointer;
    user-select: none;
    font-size: .85rem;
}
.qaa-role-toggle input[type="checkbox"] {
    display: none;
}
.qaa-role-toggle .role-chip {
    padding: .25rem .65rem;
    border-radius: 1rem;
    border: 1.5px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-secondary);
    transition: all var(--transition);
    font-weight: 500;
}
.qaa-role-toggle input:checked + .role-chip {
    background: var(--link-color);
    color: #fff;
    border-color: var(--link-color);
}
.qaa-role-toggle input:focus-visible + .role-chip {
    outline: 3px solid var(--link-color);
    outline-offset: 2px;
}

/* --- Modals --- */
.qaa-modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.5);
    z-index: 1050;
    align-items: center;
    justify-content: center;
}
.qaa-modal-overlay.show {
    display: flex;
}
.qaa-modal {
    background: var(--bg-secondary);
    border-radius: var(--radius);
    box-shadow: 0 4px 20px rgba(0,0,0,.2);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.qaa-modal .modal-header {
    padding: .75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: 600;
    font-size: 1.25rem;
    background: var(--bg-topbar);
    color: var(--text-topbar);
    flex-shrink: 0;
}
.qaa-modal .modal-header .close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-topbar);
    opacity: .75;
    padding: 0;
    line-height: 1;
}
.qaa-modal .modal-header .close-btn:hover {
    opacity: 1;
}
.qaa-modal .modal-body {
    padding: 1rem;
    overflow-y: auto;
    flex: 1 1 auto;
}
.qaa-modal .modal-footer {
    padding: .75rem 1rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: .5rem;
    flex-shrink: 0;
}

/* --- Toast-Benachrichtigungen --- */
.qaa-toast-container {
    position: fixed;
    top: 70px;
    right: 1rem;
    z-index: 1060;
    display: flex;
    flex-direction: column;
    gap: .5rem;
}
.qaa-toast {
    padding: .6rem 1rem;
    border-radius: var(--radius);
    color: #fff;
    font-size: .9rem;
    box-shadow: var(--shadow);
    animation: toastIn .3s ease;
    max-width: 350px;
}
.qaa-toast.success { background: var(--success); }
.qaa-toast.error   { background: var(--danger); }
.qaa-toast.info    { background: var(--info); }
.qaa-toast.warning { background: var(--warning); color: #212529; }

@keyframes toastIn {
    from { opacity: 0; transform: translateX(20px); }
    to   { opacity: 1; transform: translateX(0); }
}

/* --- Login-Seite --- */
.qaa-login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 1rem;
}
.qaa-login-box {
    background: var(--bg-secondary);
    border-radius: var(--radius);
    box-shadow: 0 4px 20px rgba(0,0,0,.12);
    padding: 2rem;
    width: 100%;
    max-width: 400px;
}
.qaa-login-box h1 {
    font-size: 1.5rem;
    text-align: center;
    margin-bottom: 1.5rem;
}
.qaa-login-box .login-error {
    background: var(--danger);
    color: #fff;
    padding: .5rem .75rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    font-size: .85rem;
    display: none;
}

/* --- Modulkacheln (nach Login) --- */
.qaa-module-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}
.qaa-module-tile {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.5rem 1rem;
    text-align: center;
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition);
    text-decoration: none;
    color: var(--text-primary);
}

/* ============================================================
   QaaColorPicker – Farbauswahl-Palette
   ============================================================ */

.qaa-color-picker {
    display: flex;
    flex-direction: column;
    gap: .4rem;
}

.qcp-swatches {
    display: grid;
    grid-template-columns: repeat(11, 1fr);
    gap: 4px;
}

.qcp-swatch {
    width: 22px; height: 22px;
    border: 2px solid transparent;
    border-radius: 4px;
    cursor: pointer;
    padding: 0;
    transition: transform .1s, border-color .1s;
}
.qcp-swatch:hover {
    transform: scale(1.2);
    z-index: 1;
}
.qcp-swatch.active {
    border-color: var(--link-color);
    box-shadow: 0 0 0 2px rgba(0,123,255,.35);
}
.qcp-swatch.qcp-light {
    border-color: var(--border-color);
}
.qcp-swatch.qcp-light.active {
    border-color: var(--link-color);
}
.qaa-module-tile:hover,
.qaa-module-tile:focus {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,.12);
    text-decoration: none;
}
.qaa-module-tile i {
    font-size: 2rem;
    display: block;
    margin-bottom: .5rem;
    color: var(--link-color);
}
.qaa-module-tile .tile-title {
    font-weight: 600;
    font-size: 1rem;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .qaa-content {
        padding: 1rem .75rem;
    }
    .qaa-table-controls {
        flex-direction: column;
    }
    .qaa-table-controls input[type="text"],
    .qaa-table-controls input[type="search"] {
        flex: 1 1 100%;
    }
    .qaa-modal {
        width: 96%;
        max-width: none;
    }
}

/* --- Barrierefreiheit: Reduzierte Bewegung --- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
}

/* --- Utility --- */
.text-muted   { color: var(--text-secondary) !important; }
.text-danger   { color: var(--danger) !important; }
.text-success  { color: var(--success) !important; }
.mt-1 { margin-top: .5rem; }
.mt-2 { margin-top: 1rem; }
.mb-1 { margin-bottom: .5rem; }
.mb-2 { margin-bottom: 1rem; }
.d-none { display: none !important; }
.d-flex { display: flex !important; }
.gap-1 { gap: .5rem; }
.gap-2 { gap: 1rem; }