/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* KlassenBär Brand Colors */
    --honey-yellow: #FFB84D;
    --forest-brown: #5A4A3A;
    --forest-green: #1F6D4A;
    
    --primary-color: #5A4A3A;
    --secondary-color: #7A6A5A;
    --accent-color: #FFB84D;
    --danger-color: #ef4444;
    --success-color: #1F6D4A;
    --bg-color: #faf8f5;
    --card-bg: #ffffff;
    --text-primary: #5A4A3A;
    --text-secondary: #7A6A5A;
    --border-color: #e8e0d8;
    --shadow: 0 1px 3px rgba(90, 74, 58, 0.1);
    --shadow-lg: 0 10px 15px rgba(90, 74, 58, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ===== UPDATE BANNER ===== */
.update-banner {
    background: linear-gradient(90deg, #1F6D4A 0%, #2a8a5f 100%);
    color: white;
    padding: 12px 20px;
    box-shadow: 0 2px 8px rgba(31, 109, 74, 0.25);
    border-bottom: 2px solid rgba(255, 255, 255, 0.2);
    position: sticky;
    top: 0;
    z-index: 900;
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.update-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    max-width: 800px;
    margin: 0 auto;
}

.update-content span {
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    min-height: auto;
}

@media (max-width: 640px) {
    .update-content {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .btn-small {
        width: 100%;
    }
}

/* ===== APP CONTAINER ===== */
.app-container {
    max-width: 1400px;
    margin: 0 auto;
    padding-bottom: 1rem;
}

/* ===== FOOTER ===== */
.app-footer {
    background: linear-gradient(to top, #f8fafc, #ffffff);
    border-top: 1px solid #e2e8f0;
    padding: 1.5rem 2rem;
    text-align: center;
    margin-top: 2rem;
}

.app-footer p {
    margin: 0;
    color: #64748b;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.3px;
}

/* ===== HEADER ===== */
.app-header {
    background: linear-gradient(135deg, #5A4A3A 0%, #7A6A5A 40%, #FFB84D 100%);
    color: white;
    padding: 2rem 2rem 1.5rem;
    text-align: center;
    box-shadow: 0 4px 20px rgba(90, 74, 58, 0.25);
    position: relative;
    overflow: hidden;
}

.app-header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: shimmer 8s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(10%, 10%); }
}

.header-content {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    max-width: 1100px;
    margin: 0 auto;
    width: 100%;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-left: auto;
}

.logo-container {
    flex-shrink: 0;
}

.app-logo {
    height: 80px;
    width: 80px;
    filter: drop-shadow(0 6px 20px rgba(0, 0, 0, 0.25));
    animation: logoFloat 3s ease-in-out infinite;
    border-radius: 20%;
    background: rgba(255, 255, 255, 0.15);
    padding: 8px;
    backdrop-filter: blur(10px);
}

@keyframes logoFloat {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-5px); }
}

.header-text {
    text-align: left;
}

.app-title {
    font-size: 2rem;
    font-weight: 800;
    margin: 0;
    letter-spacing: -0.5px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.title-klassen {
    color: #ffffff;
}

.title-baer {
    color: #FFB84D;
}

.app-tagline {
    font-size: 0.875rem;
    margin: 0.25rem 0 0;
    opacity: 0.9;
    font-weight: 500;
    letter-spacing: 0.5px;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

@media (max-width: 640px) {
    .app-header {
        padding: 1rem 0.75rem 1rem;
    }
    
    .header-content {
        gap: 0.5rem;
        flex-wrap: wrap;
    }
    
    .header-right {
        order: -1;
        width: 100%;
        justify-content: space-between;
        margin-left: 0;
        margin-bottom: 0.5rem;
    }
    
    .app-logo {
        height: 48px;
        width: 48px;
    }
    
    .app-title {
        font-size: 1.35rem;
    }
    
    .app-tagline {
        font-size: 0.7rem;
    }
    
    .header-text {
        flex: 1;
    }
    
    .app-footer {
        padding: 1rem;
    }
    
    .app-footer p {
        font-size: 0.75rem;
    }
    
    /* Smaller grade buttons on very small screens */
    .grade-btn {
        min-width: 45px;
        min-height: 45px;
        font-size: 1.5rem;
        padding: 0.4rem;
    }
    
    .grade-buttons {
        gap: 0.3rem;
        justify-content: center;
    }
    
    /* Stack buttons in groups tab for better UX */
    .group-card-actions {
        flex-wrap: wrap;
        gap: 0.25rem;
    }
    
    .btn-icon-small {
        font-size: 1.2rem;
        padding: 0.4rem 0.6rem;
    }
    
    /* Tabs optimization */
    .tabs {
        gap: 0.25rem;
        padding: 0 0.5rem;
    }
    
    .tab {
        padding: 0.75rem 0.5rem;
        font-size: 0.85rem;
        min-width: auto;
    }
    
    /* Student cards in groups */
    .group-students-grid {
        gap: 0.4rem;
    }
    
    .group-student-badge {
        font-size: 0.85rem;
        padding: 0.4rem 0.6rem;
    }
    
    /* Section headers */
    .section-header h2 {
        font-size: 1.3rem;
    }
    
    .section-header .btn {
        font-size: 0.85rem;
        padding: 0.6rem 1rem;
    }
    
    /* Seating chart optimization */
    .seat-card {
        min-height: 70px;
        font-size: 0.85rem;
        padding: 0.5rem;
    }
    
    .seat-name {
        font-size: 0.8rem;
    }
    
    .seat-position {
        font-size: 0.7rem;
    }
    
    /* Form inputs with larger touch targets */
    input[type="text"],
    input[type="number"],
    select,
    textarea {
        font-size: 16px; /* Prevents iOS zoom */
        min-height: 48px;
    }
    
    /* Improved button touch targets */
    .btn {
        min-height: 44px;
        padding: 0.75rem 1.25rem;
    }
    
    /* Very small screen - Table optimizations */
    .history-table th,
    .history-table td {
        padding: 0.5rem 0.4rem;
        font-size: 0.8rem;
    }
    
    .history-table th {
        font-size: 0.75rem;
    }
    
    /* Assessment items compact */
    .assessment-item {
        padding: 0.6rem;
    }
    
    .assessment-header {
        gap: 0.4rem;
    }
    
    .assessment-meta {
        font-size: 0.8rem;
    }
    
    /* Delete button in assessment */
    .btn-delete-assessment {
        padding: 0.3rem 0.5rem;
        font-size: 1rem;
    }
    
    /* Filter panel very compact */
    .filter-panel {
        padding: 0.75rem;
    }
    
    .date-filter {
        padding: 0.75rem;
        gap: 0.75rem;
    }
    
    /* Competency items */
    .competency-item {
        padding: 0.75rem;
    }
    
    .competency-code {
        font-size: 0.9rem;
    }
    
    .competency-desc {
        font-size: 0.8rem;
    }
    
    /* Group cards */
    .group-card {
        padding: 0.75rem;
    }
    
    .group-card-header h4 {
        font-size: 1.1rem;
    }
    
    /* Batch assessment header */
    .batch-assessment-header h3 {
        font-size: 1.2rem;
    }
    
    .batch-assessment-header p {
        font-size: 0.85rem;
    }
    
    /* Overview filters */
    .overview-filters {
        gap: 0.75rem;
    }
    
    /* Export checkboxes more compact */
    .export-student-checkbox {
        padding: 0.4rem 0.5rem;
        font-size: 0.8rem;
    }
    
    .group-student-checkbox {
        padding: 0.4rem 0.5rem;
        font-size: 0.8rem;
    }
    
    /* Competency selector for very small screens */
    .today-competency-selector {
        padding: 0.75rem;
        gap: 0.5rem;
    }
    
    .today-competency-selector label {
        font-size: 0.9rem;
    }
    
    .today-competency-selector select {
        font-size: 16px;
        padding: 0.875rem;
        min-height: 48px;
    }
}

/* ===== TABS ===== */
.tabs {
    display: flex;
    background: linear-gradient(to bottom, #1F6D4A, #2a8a5f);
    border-bottom: 1px solid #1a5c3f;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    box-shadow: 0 2px 8px rgba(31, 109, 74, 0.2);
    position: sticky;
    top: 0;
    z-index: 500;
}

.tab-btn {
    flex: 1;
    min-width: 120px;
    padding: 1rem;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    font-size: 1rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.8);
    cursor: pointer;
    transition: all 0.3s ease;
    min-height: 48px;
    position: relative;
}

.tab-btn::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: #FFB84D;
    transform: translateX(-50%);
    transition: width 0.3s ease;
    border-radius: 3px 3px 0 0;
}

.tab-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
}

.tab-btn.active {
    color: #ffffff;
    font-weight: 700;
}

.tab-btn.active::after {
    width: 80%;
}

/* ===== TAB CONTENT ===== */
.tab-content {
    padding: 2rem;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

/* ===== SECTION HEADER ===== */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.section-header h2,
.section-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* ===== BUTTONS ===== */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    min-height: 44px;
    min-width: 44px;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: var(--secondary-color);
}

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

.btn-secondary:hover {
    background: var(--border-color);
}

.btn-danger {
    background: var(--danger-color);
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-group {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.btn-install {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(10px);
    padding: 0.625rem 1.25rem;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-left: auto;
    white-space: nowrap;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-install:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.6);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.demo-locked {
    opacity: 0.85;
    background: linear-gradient(135deg, #ff9800 0%, #f57c00 100%) !important;
    border-color: #ff9800 !important;
}

.btn-install:active {
    transform: translateY(0);
}

@media (max-width: 768px) {
    .btn-install {
        font-size: 0.85rem;
        padding: 0.5rem 1rem;
    }
}

@media (max-width: 640px) {
    .header-content {
        flex-wrap: wrap;
    }
    
    .btn-install {
        width: 100%;
        margin-left: 0;
        margin-top: 0.5rem;
    }
}

/* ===== APP VERSION ===== */
.app-version {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.7rem;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 500;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

/* ===== GLOBAL CATEGORY SELECTOR ===== */
.global-category-selector {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.2);
    padding: 0.35rem 0.65rem;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.25);
}

.global-category-selector .category-label {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.8rem;
    font-weight: 500;
    white-space: nowrap;
}

.global-category-selector .category-dropdown {
    background: rgba(255, 255, 255, 0.95);
    border: none;
    border-radius: 6px;
    padding: 0.3rem 0.5rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--forest-brown);
    cursor: pointer;
    min-width: 80px;
    max-width: 120px;
}

.global-category-selector .category-dropdown:focus {
    outline: 2px solid var(--honey-yellow);
    outline-offset: 1px;
}

@media (max-width: 768px) {
    .global-category-selector {
        padding: 0.25rem 0.5rem;
    }
    
    .global-category-selector .category-label {
        display: none;
    }
    
    .global-category-selector .category-dropdown {
        font-size: 0.75rem;
        min-width: 70px;
        max-width: 100px;
    }
}

@media (max-width: 480px) {
    .app-version {
        font-size: 0.6rem;
    }
    
    .global-category-selector .category-dropdown {
        min-width: 60px;
        max-width: 85px;
        font-size: 0.7rem;
        padding: 0.25rem 0.4rem;
    }
}

/* ===== GRID ===== */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1rem;
}

/* ===== CARDS ===== */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: all 0.2s;
    min-height: 100px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ===== CLASS DETAIL ===== */
.class-detail {
    animation: fadeIn 0.3s;
}

.hidden {
    display: none !important;
}

.detail-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.class-switcher {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.class-switcher h2 {
    margin: 0;
}

.class-quick-switch {
    padding: 0.5rem 0.75rem;
    border: 2px solid var(--primary-color);
    border-radius: 6px;
    background: white;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary-color);
    cursor: pointer;
    min-width: 120px;
}

.class-quick-switch:hover {
    background: #e0f2fe;
}

.detail-actions {
    display: flex;
    gap: 0.5rem;
}

/* ===== STUDENT MANAGEMENT ===== */
.student-management {
    margin-top: 2rem;
}

.today-competency-selector {
    display: flex;
    gap: 1rem;
    align-items: center;
    padding: 1rem;
    background: #e0f2fe;
    border-radius: 8px;
    margin-bottom: 2rem;
    border: 2px solid var(--primary-color);
    position: relative;
    z-index: 10;
    overflow: visible;
    isolation: isolate;
    flex-wrap: wrap;
}

.today-competency-selector label {
    flex-shrink: 0;
    font-weight: 600;
    color: var(--primary-color);
    pointer-events: none;
}

/* Assessment Progress Indicator */
.assessment-progress {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: white;
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.progress-text {
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--primary-color);
    white-space: nowrap;
}

.progress-bar-container {
    width: 60px;
    height: 8px;
    background: #e2e8f0;
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, #10b981, #059669);
    border-radius: 4px;
    transition: width 0.3s ease;
    width: 0%;
}

.today-competency-selector select {
    flex: 1;
    margin: 0;
    position: relative;
    z-index: 11;
    pointer-events: auto;
    -webkit-appearance: menulist;
    appearance: menulist;
    touch-action: manipulation;
    -webkit-tap-highlight-color: rgba(0,0,0,0.1);
    user-select: none;
    -webkit-user-select: none;
}

/* Touch-optimized competency selector button */
.competency-select-btn {
    flex: 1;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    font-size: 16px;
    min-height: 52px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: left;
    font-weight: 500;
    color: var(--text-primary);
    touch-action: manipulation;
    -webkit-tap-highlight-color: rgba(0,0,0,0.05);
}

.competency-select-btn:hover {
    border-color: var(--primary-color);
    background: #f8fafc;
}

.competency-select-btn:active {
    transform: scale(0.98);
    background: #e0f2fe;
    border-color: var(--primary-color);
}

.select-arrow {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-left: 0.5rem;
    transition: transform 0.2s ease;
}

/* Competency options list in modal */
.competency-options-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin: 1rem 0;
    padding: 0.5rem;
}

.competency-option-btn {
    padding: 1.25rem;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    text-align: left;
    cursor: pointer;
    transition: all 0.2s ease;
    min-height: 56px;
    display: flex;
    align-items: center;
    font-weight: 500;
    touch-action: manipulation;
    -webkit-tap-highlight-color: rgba(0,0,0,0.05);
}

.competency-option-btn:hover {
    background: var(--primary-light);
    border-color: var(--primary-color);
}

.competency-option-btn:active {
    transform: scale(0.98);
    background: var(--primary-color);
    color: white;
}

.competency-option-btn.selected {
    background: var(--primary-light);
    border-color: var(--primary-color);
    font-weight: 600;
}


.search-input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    margin-bottom: 1rem;
    min-height: 48px;
}

.info-text {
    background: #fffbeb;
    border: 1px solid #fcd34d;
    border-radius: 8px;
    padding: 0.75rem;
    margin-bottom: 1rem;
    font-size: 0.95rem;
    color: #92400e;
}

.move-mode-indicator {
    background: #dbeafe;
    border: 2px solid var(--primary-color);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    animation: fadeIn 0.3s;
}

.move-mode-indicator span {
    font-weight: 600;
    color: var(--primary-color);
}

/* ===== SEATING CHART ===== */
.seating-chart {
    display: grid;
    gap: 0.75rem;
    margin-top: 1rem;
}

.seat-card {
    background: var(--card-bg);
    border: 3px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: all 0.2s;
    min-height: 120px;
    display: flex;
    flex-direction: column;
    position: relative;
}

.seat-card.occupied {
    border-color: var(--primary-color);
    cursor: pointer;
    position: relative;
}

.seat-card.occupied:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
    border-color: var(--accent-color);
}

/* Assessment status in seating chart - only affects background, not border (border is for differentiation colors) */
.seat-card.never-assessed {
    opacity: 0.5;
    filter: grayscale(60%);
}

.seat-card.never-assessed:hover {
    opacity: 0.75;
}

.seat-card.assessed-historical {
    opacity: 1;
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
}

.seat-card.assessed-historical:hover {
    background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%);
}

.seat-card.assessed-today {
    opacity: 1;
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
    box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.3), 0 4px 12px rgba(16, 185, 129, 0.2);
}

.seat-assessment-badge {
    position: absolute;
    top: -8px;
    right: -8px;
    font-size: 1.2rem;
    background: white;
    border-radius: 50%;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    z-index: 10;
}

.seat-count-badge {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 600;
    margin-top: 2px;
}

.seat-card.empty {
    background: var(--bg-color);
    border-style: dashed;
    border-color: #d1d5db;
    cursor: pointer;
}

.seat-card.seat-selected {
    border-color: #fbbf24 !important;
    border-width: 4px !important;
    box-shadow: 0 0 0 3px rgba(251, 191, 36, 0.3) !important;
    background: #fef3c7 !important;
}

.seat-card.sortable-ghost {
    opacity: 0.4;
}

.seat-number {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    background: var(--bg-color);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    display: inline-block;
    margin-bottom: 0.5rem;
}

.student-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.student-comment {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-style: italic;
    margin-bottom: 0.5rem;
    padding: 0.25rem 0.5rem;
    background: #fef3c7;
    border-radius: 4px;
    border-left: 3px solid #fbbf24;
    line-height: 1.3;
    word-wrap: break-word;
}

.empty-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-align: center;
    flex-grow: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.seat-actions {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    display: flex;
    gap: 0.25rem;
    z-index: 10;
}

.btn-icon-small {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.25rem 0.5rem;
    cursor: pointer;
    font-size: 0.85rem;
    min-height: 32px;
    min-width: 32px;
    transition: all 0.2s;
}

.btn-icon-small:hover {
    background: var(--border-color);
    transform: scale(1.05);
}

/* ===== ASSESSMENTS LIST ===== */
.assessments-list {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
}

.assessment-item {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.assessment-item:last-child {
    border-bottom: none;
}

.assessment-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.assessment-meta {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* ===== DATE FILTER ===== */
.date-filter {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: center;
    border: 1px solid var(--border-color);
}

.date-input {
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    min-height: 48px;
}

/* ===== HISTORY TABLE ===== */
.history-table-container {
    background: var(--card-bg);
    border-radius: 12px;
    overflow-x: auto;
    border: 1px solid var(--border-color);
}

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

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

.history-table th {
    background: var(--bg-color);
    font-weight: 700;
    position: sticky;
    top: 0;
}

.history-table tr:hover {
    background: var(--bg-color);
}

/* ===== CATEGORY TABS ===== */
.category-tabs-container {
    margin-bottom: 1.5rem;
}

.category-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.5rem 0;
}

.category-tab {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 20px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.2s ease;
}

.category-tab:hover {
    border-color: var(--primary-color);
    background: var(--bg-color);
}

.category-tab.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.category-tab.active .category-edit-btn {
    color: rgba(255,255,255,0.8);
}

.category-edit-btn {
    font-size: 0.8rem;
    opacity: 0.6;
    transition: opacity 0.2s;
}

.category-tab:hover .category-edit-btn {
    opacity: 1;
}

.category-add-btn {
    padding: 0.6rem 1.2rem;
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--primary-color);
    border-style: dashed;
}

.category-add-btn:hover {
    background: var(--primary-light);
}

/* ===== COMPETENCIES LIST ===== */
.competencies-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.competency-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow);
}

.competency-info {
    flex: 1;
}

.competency-code {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.competency-description {
    color: var(--text-secondary);
}

.competency-actions {
    display: flex;
    gap: 0.5rem;
}

/* ===== BACKUP ACTIONS ===== */
.backup-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.backup-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow);
}

.backup-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.backup-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.file-input {
    display: block;
    width: 100%;
    padding: 0.75rem;
    margin-bottom: 1rem;
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    min-height: 48px;
}

/* ===== MODALS ===== */
/* Dialog element styles */
dialog {
    border: none;
    border-radius: 12px;
    padding: 0;
    max-width: 90vw;
    max-height: 90vh;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    animation: dialogFadeIn 0.15s ease-out;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    margin: 0;
}

@keyframes dialogFadeIn {
    from {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

dialog::backdrop {
    background: rgba(0, 0, 0, 0.5);
    animation: backdropFadeIn 0.15s ease-out;
}

@keyframes backdropFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Legacy modal class support (kept for compatibility) */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    animation: fadeIn 0.2s;
}

.modal-content {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 2rem;
    padding-bottom: 0;
    -webkit-overflow-scrolling: touch;
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
}

.modal-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.text-input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    margin-bottom: 1rem;
    min-height: 48px;
}

textarea.text-input {
    resize: vertical;
    font-family: inherit;
}

.modal-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    padding: 1rem 2rem 1.5rem 2rem;
    position: sticky;
    bottom: 0;
    background: var(--card-bg);
    border-top: 1px solid var(--border-color);
    margin-left: -2rem;
    margin-right: -2rem;
    flex-shrink: 0;
    box-shadow: 0 -4px 12px rgba(0,0,0,0.08);
}

.modal-actions .btn {
    flex: 1;
}

.import-mode {
    display: flex;
    gap: 1.5rem;
    margin: 1rem 0;
}

.import-mode label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    cursor: pointer;
}

.import-mode input[type="radio"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

/* ===== ASSESSMENT MODAL ===== */
.modal-assessment {
    max-width: 600px;
}

.assessment-info {
    background: var(--bg-color);
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 0.75rem;
    text-align: center;
}

.assessment-info strong {
    display: block;
    font-size: 1.3rem;
    margin-bottom: 0.25rem;
}

.assessment-class {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Assessment History */
.assessment-history {
    background: #f0f9ff;
    border: 1px solid #bae6fd;
    border-radius: 8px;
    padding: 0.75rem;
    margin-bottom: 1rem;
}

.history-header {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.history-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.history-item {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    padding: 0.3rem 0.5rem;
    font-size: 0.8rem;
}

.history-emoji {
    font-size: 1rem;
}

.history-code {
    font-weight: 600;
    color: var(--primary-color);
}

.history-date {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

.history-comment {
    cursor: help;
}

.history-empty {
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-style: italic;
}

/* Assessment Comment */
.assessment-comment-section {
    margin: 0.75rem 0;
}

.assessment-comment-section label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.assessment-comment-section input {
    font-size: 0.9rem;
}

.emoji-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    margin: 1rem 0;
}

.emoji-btn-large {
    background: var(--bg-color);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    cursor: pointer;
    font-size: 2.5rem;
    transition: all 0.2s;
    min-height: 80px;
}

.emoji-btn-large:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.emoji-btn-large:active {
    transform: scale(0.95);
}

.assessment-recent {
    background: var(--bg-color);
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
    max-height: 180px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.assessment-recent h4 {
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
}

.recent-assessment {
    padding: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.85rem;
}

.recent-assessment:last-child {
    border-bottom: none;
}

/* ===== BATCH ASSESSMENT ===== */
.modal-batch {
    max-width: 600px;
}

.batch-setup {
    padding: 1rem;
    background: var(--bg-color);
    border-radius: 8px;
}

.batch-area {
    margin-top: 1rem;
}

.batch-progress {
    text-align: center;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.batch-controls {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    margin-top: 1rem;
}

.batch-complete {
    background: #d4edda;
    border: 2px solid #28a745;
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
}

.batch-complete h4 {
    color: #28a745;
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

/* ===== CSV PREVIEW ===== */
.csv-preview {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--bg-color);
    border-radius: 8px;
    max-height: 180px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.csv-preview h4 {
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.csv-preview-item {
    padding: 0.25rem;
    font-size: 0.85rem;
    font-family: monospace;
}

/* ===== TOAST NOTIFICATIONS ===== */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: white;
    padding: 1rem 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    font-weight: 600;
    z-index: 2000;
    animation: slideUp 0.3s ease-out;
}

.toast-with-undo {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem 0.75rem 1.5rem;
}

.toast-with-undo .undo-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.4);
    color: white;
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.toast-with-undo .undo-btn:hover {
    background: rgba(255, 255, 255, 0.35);
}

.toast.error {
    background: var(--danger-color);
}

.toast.success {
    background: #28a745;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* ===== PRINT STYLES ===== */
@media print {
    body {
        background: white;
    }

    .offline-banner,
    .app-header,
    .app-footer,
    .tabs,
    .btn,
    .section-header button,
    .modal {
        display: none !important;
    }

    .app-container {
        max-width: 100%;
        padding: 0;
    }

    .tab-content {
        padding: 1cm;
    }

    .assessments-list,
    .history-table-container {
        border: 1px solid #000;
        page-break-inside: avoid;
    }

    .assessment-item {
        page-break-inside: avoid;
    }

    .history-table th {
        background: #f0f0f0 !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    @page {
        size: A4 landscape;
        margin: 1cm;
    }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .tab-content {
        padding: 1rem;
    }

    .section-header {
        flex-direction: column;
        align-items: stretch;
    }

    .detail-header {
        flex-direction: column;
        align-items: stretch;
    }

    .grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }

    .seating-chart {
        grid-template-columns: 1fr;
    }

    .date-filter {
        flex-direction: column;
    }

    .backup-actions {
        grid-template-columns: 1fr;
    }
    
    /* Mobile optimization for group assessment */
    .batch-assessment-header h3 {
        font-size: 1.3rem;
    }
    
    .batch-assessment-header p {
        font-size: 0.9rem;
    }
    
    .grade-btn {
        min-width: 50px;
        min-height: 50px;
        font-size: 1.75rem;
        padding: 0.5rem;
    }
    
    .grade-buttons {
        gap: 0.4rem;
    }
    
    .batch-assessment-item {
        padding: 0.75rem;
    }
    
    /* Select dropdown optimization */
    .text-input,
    select.text-input {
        font-size: 16px; /* Prevents zoom on iOS */
        padding: 0.875rem;
    }
    
    .today-competency-selector {
        margin-bottom: 2rem;
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
        z-index: 10;
        overflow: visible;
    }
    
    .today-competency-selector label {
        font-size: 1rem;
        margin-bottom: 0;
    }
    
    .today-competency-selector select {
        width: 100%;
        font-size: 16px;
        padding: 1rem;
        min-height: 50px;
        position: relative;
        z-index: 11;
        -webkit-appearance: menulist;
        appearance: menulist;
    }
    
    /* Modal optimization */
    .modal-content {
        padding: 1.5rem;
    }
    
    .modal-actions {
        flex-direction: column;
    }
    
    .modal-actions .btn {
        width: 100%;
    }
    
    /* Emoji grid optimization */
    .emoji-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
    }
    
    .emoji-btn-large {
        padding: 1rem;
        font-size: 2rem;
        min-height: 60px;
    }
    
    /* Today tab - Assessment items */
    .assessment-item {
        padding: 0.75rem;
    }
    
    .assessment-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .assessment-meta {
        font-size: 0.85rem;
    }
    
    /* History table optimization */
    .history-table th,
    .history-table td {
        padding: 0.75rem 0.5rem;
        font-size: 0.9rem;
    }
    
    .history-table {
        font-size: 0.85rem;
    }
    
    /* Filter panel optimization */
    .filter-panel {
        padding: 1rem;
    }
    
    .date-filter {
        padding: 1rem;
        flex-direction: column;
        align-items: stretch;
    }
    
    .date-input {
        width: 100%;
    }
    
    /* Overview table */
    #overview-table-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .overview-results {
        padding: 1rem;
    }
    
    /* Competencies list */
    .competency-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
    
    .competency-actions {
        width: 100%;
        justify-content: space-between;
    }
    
    /* Student checkboxes */
    .group-student-checkbox,
    .export-student-checkbox {
        padding: 0.6rem;
    }
}

/* ===== GROUP MANAGEMENT ===== */
.group-management {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 2px solid var(--border-color);
}

.groups-container {
    display: grid;
    gap: 1rem;
    margin-top: 1rem;
    position: relative;
    z-index: 1;
    clear: both;
}

.group-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

.group-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.group-card-header h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.group-card-actions {
    display: flex;
    gap: 0.5rem;
}

.group-notes {
    background: #fef9c3;
    padding: 0.75rem;
    border-radius: 6px;
    margin: 0.5rem 0;
    font-size: 0.9rem;
    color: var(--text-primary);
    border-left: 3px solid #fbbf24;
}

.group-feedback-banner {
    background: #d1fae5;
    color: #065f46;
    padding: 1rem;
    border-radius: 8px;
    margin: 1rem 0;
    text-align: center;
    font-weight: 600;
    border: 2px solid #10b981;
    animation: fadeIn 0.3s ease-in;
}

.group-feedback-banner.hidden {
    display: none;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== EXPORT TREE ===== */
.export-selection-area {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    margin-top: 0.5rem;
}

.export-quick-actions {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
}

.export-tree {
    max-height: 280px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.export-class-item {
    margin-bottom: 0.75rem;
}

.export-class-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
}

.export-class-checkbox:hover {
    background: var(--card-bg);
}

.export-groups-list {
    margin-left: 2rem;
    margin-top: 0.5rem;
}

.export-group-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem;
    background: #f9fafb;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    margin-bottom: 0.3rem;
    cursor: pointer;
}

.export-group-checkbox:hover {
    background: #e5e7eb;
}

.group-students-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.group-student-badge {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.5rem;
    font-size: 0.9rem;
    text-align: center;
    color: var(--text-primary);
}

.group-students-section {
    margin-top: 1.5rem;
}

.group-students-section h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.group-students-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.5rem;
    padding: 0.5rem;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
}

.group-student-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
}

.group-student-checkbox:hover {
    background: var(--bg-color);
    border-color: var(--accent-color);
}

.group-student-checkbox input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.group-student-checkbox label {
    cursor: pointer;
    flex: 1;
    font-size: 0.9rem;
}

.group-empty-message {
    text-align: center;
    color: var(--text-secondary);
    font-style: italic;
    padding: 2rem;
}

/* ===== ÜBERSICHT TAB ===== */
.filter-panel {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
}

.filter-row {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex: 1;
    min-width: 200px;
}

.filter-group label {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.filter-actions {
    margin-top: 1rem;
    display: flex;
    gap: 0.5rem;
    justify-content: flex-end;
}

/* Fullheight Modal Layout - für große Modals wie Export */
.modal-fullheight {
    max-height: 90vh;
}

.modal-fullheight .modal-content.modal-flex {
    display: flex;
    flex-direction: column;
    max-height: 85vh;
    padding: 0;
    overflow: hidden;
}

.modal-header-fixed {
    padding: 1.5rem 2rem 1rem 2rem;
    background: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.modal-header-fixed h3 {
    margin: 0;
    font-size: 1.4rem;
}

.modal-body-scroll {
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 1.5rem 2rem;
}

.modal-fullheight .modal-actions {
    position: relative;
    margin: 0;
    padding: 1rem 2rem 1.5rem 2rem;
    border-top: 1px solid var(--border-color);
    background: var(--card-bg);
    flex-shrink: 0;
    box-shadow: 0 -4px 12px rgba(0,0,0,0.08);
}

.export-classes-tree {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.5rem;
    background: var(--bg-color);
}

.export-class-item {
    margin-bottom: 0.5rem;
}

.export-class-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-weight: 600;
}

.export-class-checkbox input {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.export-class-checkbox label {
    cursor: pointer;
    flex: 1;
}

.export-groups-list {
    margin-left: 2rem;
    margin-top: 0.5rem;
}

.export-group-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: #f8f9fa;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    margin-bottom: 0.25rem;
}

.export-group-checkbox input {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.export-group-checkbox label {
    cursor: pointer;
    flex: 1;
    font-size: 0.9rem;
}

.export-students-list {
    margin-left: 3rem;
    margin-top: 0.25rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.export-students-list.expanded {
    max-height: 30vh;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.export-student-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.75rem;
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    margin-bottom: 0.25rem;
    font-size: 0.85rem;
}

.export-student-checkbox input {
    width: 14px;
    height: 14px;
    cursor: pointer;
}

.export-student-checkbox label {
    cursor: pointer;
    flex: 1;
    font-size: 0.85rem;
}

.export-student-checkbox.hidden {
    display: none;
}

.toggle-students-btn {
    background: none;
    border: none;
    color: var(--accent-color);
    cursor: pointer;
    font-size: 0.85rem;
    padding: 0.25rem 0.5rem;
    margin-left: 2rem;
    text-decoration: underline;
}

.toggle-students-btn:hover {
    color: var(--primary-color);
}

.overview-results {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.overview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.overview-header h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
}

#overview-table-container {
    overflow-x: auto;
}

/* Print Styles for Overview */
@media print {
    .filter-panel,
    .overview-header .btn-group,
    .tabs,
    .app-header,
    .app-footer {
        display: none !important;
    }
    
    .overview-results {
        box-shadow: none;
        padding: 0;
    }
}

/* ===== COLOR PICKER (STUDENT MODAL) ===== */
.color-picker-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.color-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.color-option:hover {
    border-color: var(--accent-color);
    background: var(--bg-color);
}

.color-option input[type="radio"] {
    display: none;
}

.color-option input[type="radio"]:checked + .color-box {
    box-shadow: 0 0 0 3px white, 0 0 0 5px var(--accent-color);
}

.color-option input[type="radio"]:checked ~ span {
    font-weight: 600;
}

.color-box {
    width: 24px;
    height: 24px;
    border-radius: 4px;
    border: 2px solid var(--border-color);
    transition: box-shadow 0.2s ease;
}

.color-none {
    background: white;
    border: 2px dashed var(--border-color);
}

.color-green {
    background: #10b981;
    border-color: #059669;
}

.color-yellow {
    background: #f59e0b;
    border-color: #d97706;
}

.color-red {
    background: #ef4444;
    border-color: #dc2626;
}

/* ===== SEAT COLOR INDICATORS ===== */
.seat-card.color-indicator-green {
    border: 3px solid #10b981;
}

.seat-card.color-indicator-yellow {
    border: 3px solid #f59e0b;
}

.seat-card.color-indicator-red {
    border: 3px solid #ef4444;
}

.seat-card.color-indicator-green::before,
.seat-card.color-indicator-yellow::before,
.seat-card.color-indicator-red::before {
    content: '';
    position: absolute;
    top: -2px;
    right: -2px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid white;
}

.seat-card.color-indicator-green::before {
    background: #10b981;
}

.seat-card.color-indicator-yellow::before {
    background: #f59e0b;
}

.seat-card.color-indicator-red::before {
    background: #ef4444;
}

/* Group student badge assessed indicator */
.group-student-badge.assessed-today {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    border-color: #047857;
    border-width: 2px;
    font-weight: 600;
    color: white;
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
}

.group-student-badge.assessed-historical {
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
    border-color: #6ee7b7;
    border-width: 2px;
    font-weight: 500;
    color: #065f46;
}

.group-student-badge.never-assessed {
    background: #f3f4f6;
    border-color: #d1d5db;
    color: #6b7280;
    opacity: 0.7;
}

/* ===== BATCH ASSESSMENT & GROUP ASSESSMENT STYLES ===== */
.batch-assessment-header {
    margin-bottom: 1.5rem;
}

.batch-assessment-header h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.batch-assessment-header p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.batch-assessment-list {
    max-height: 400px;
    overflow-y: auto;
    margin-bottom: 1.5rem;
}

.batch-assessment-item {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding: 1rem;
    margin-bottom: 1rem;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.batch-assessment-item.already-assessed {
    background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
    border-color: #28a745;
    border-width: 2px;
}

.already-assessed-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    color: #155724;
    background: rgba(40, 167, 69, 0.2);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    margin-left: 0.5rem;
}

.batch-student-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.batch-student-info strong {
    font-size: 1.1rem;
    color: var(--text-primary);
}

.batch-student-seat {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.grade-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: flex-start;
}

.grade-btn {
    background: var(--bg-color);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem;
    cursor: pointer;
    font-size: 2rem;
    transition: all 0.2s;
    min-width: 60px;
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.grade-btn:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow);
    border-color: var(--primary-color);
}

.grade-btn:active {
    transform: scale(0.95);
}

.grade-btn.selected {
    background: var(--primary-color);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.3);
    transform: scale(1.1);
}

.quick-grade-btn {
    background: var(--card-bg);
    border: 2px solid var(--accent-color);
}

.quick-grade-btn:hover {
    border-color: var(--primary-color);
    background: var(--bg-color);
}

.quick-grade-btn.selected {
    background: var(--accent-color);
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.3);
}

/* ===== MOBILE OPTIMIZATIONS ===== */
@media (max-width: 640px) {
    /* Kompaktere Kompetenz-Buttons auf Mobilgeräten */
    .competency-option-btn {
        padding: 0.85rem;
        font-size: 0.9rem;
        line-height: 1.4;
        min-height: 48px;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    .competency-options-list {
        gap: 0.5rem;
        max-height: 65vh;
        padding: 0.25rem;
    }
    
    .competency-select-btn {
        font-size: 0.9rem;
        padding: 0.85rem;
    }
    
    /* Dialog-Titel auf Mobilgeräten */
    dialog h2 {
        font-size: 1.25rem;
        line-height: 1.3;
    }
    
    dialog h3 {
        font-size: 1.1rem;
    }
}

/* ===== IMPROVED MODAL & TOUCH EXPERIENCE (v1.7.0) ===== */

/* Dialogs: Bessere Breite und kein verschwendeter Platz */
dialog {
    width: calc(100vw - 2rem);
    max-width: 550px;
    padding: 0;
}

dialog > div,
dialog > form {
    padding: 1.25rem;
    box-sizing: border-box;
}

/* Batch/Group Assessment Modal: Optimiert für Touch */
.batch-assessment-list {
    max-height: 55vh;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    scroll-behavior: smooth;
    padding-right: 0.5rem;
    margin: 0 -0.5rem;
    padding-left: 0.5rem;
}

/* Kompaktere Schüler-Einträge */
.batch-assessment-item {
    padding: 0.75rem;
    margin-bottom: 0.75rem;
    gap: 0.5rem;
}

.batch-student-info strong {
    font-size: 1rem;
}

.batch-student-seat {
    font-size: 0.8rem;
}

/* Größere Touch-Bereiche für Emoji-Buttons */
.grade-btn {
    min-width: 52px;
    min-height: 52px;
    padding: 0.5rem;
    font-size: 1.75rem;
    touch-action: manipulation;
}

.grade-buttons {
    gap: 0.4rem;
    justify-content: center;
}

/* Quick-Grade Buttons im Header: Größer */
.quick-grade-section .grade-btn,
.quick-grade-btn {
    min-width: 48px;
    min-height: 48px;
    font-size: 1.6rem;
}

/* Sticky Footer für Modal-Actions */
.modal-sticky-footer {
    position: sticky;
    bottom: 0;
    background: var(--card-bg);
    padding: 1rem 0 0 0;
    margin: 1rem -1.25rem -1.25rem -1.25rem;
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--border-color);
    box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.1);
    z-index: 10;
}

.modal-sticky-footer .modal-actions {
    margin-top: 0;
}

/* Schnellbewertung Header fixieren */
.quick-grade-section {
    position: sticky;
    top: 0;
    background: var(--card-bg);
    z-index: 5;
    padding-bottom: 0.75rem;
    margin-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

/* Tablet & Desktop: Etwas mehr Platz */
@media (min-width: 641px) {
    dialog {
        max-width: 600px;
    }
    
    .grade-btn {
        min-width: 58px;
        min-height: 58px;
        font-size: 1.9rem;
    }
    
    .batch-assessment-list {
        max-height: 50vh;
    }
}

/* iPad/Tablet Landscape: Optimierte Nutzung */
@media (min-width: 768px) and (orientation: landscape) {
    dialog {
        max-width: 650px;
        max-height: 85vh;
    }
    
    .batch-assessment-list {
        max-height: 45vh;
    }
    
    .batch-assessment-item {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
    
    .batch-student-info {
        flex: 0 0 auto;
        min-width: 150px;
    }
    
    .grade-buttons {
        flex: 1;
        justify-content: flex-end;
    }
}

/* Extra Touch-Verbesserungen */
@media (pointer: coarse) {
    .grade-btn {
        min-width: 54px;
        min-height: 54px;
    }
    
    .btn {
        min-height: 48px;
    }
    
    .modal-actions .btn {
        padding: 0.875rem 1.25rem;
        font-size: 1rem;
    }
}