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

:root {
    --acl-red: #E63946;
    --acl-blue: #457B9D;
    --acl-yellow: #F1FAEE;
    --acl-dark: #1D3557;
    --acl-light: #A8DADC;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --text-dark: #2c3e50;
    --text-light: #ecf0f1;
    --bg-light: #f8f9fa;
    --border-color: #dee2e6;
    --success: #28a745;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.6;
    min-height: 100vh;
    padding-bottom: 100px;
}

.header {
    background: linear-gradient(135deg, var(--acl-dark) 0%, var(--acl-blue) 100%);
    color: white;
    padding: 2rem 1rem;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.logo h1 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 2.5rem;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
}

.subtitle {
    font-size: 1rem;
    opacity: 0.9;
    font-weight: 600;
}

/* Comparison Banner */
.comparison-banner {
    background: var(--acl-yellow);
    border-bottom: 3px solid var(--acl-red);
    padding: 1rem;
    text-align: center;
}

.comparison-banner.hidden {
    display: none;
}

.comparison-content p {
    margin-bottom: 0.75rem;
    color: var(--acl-dark);
}

#friend-name {
    color: var(--acl-red);
}

/* Tabs */
.tabs {
    display: flex;
    background: white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.tab {
    flex: 1;
    min-width: 80px;
    padding: 1rem;
    background: white;
    border: none;
    border-bottom: 3px solid transparent;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-dark);
}

.tab:hover {
    background: var(--bg-light);
}

.tab.active {
    border-bottom-color: var(--acl-red);
    color: var(--acl-red);
}

/* Filter Section */
.filter-section {
    padding: 1rem;
    background: white;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.filter-section label {
    font-weight: 600;
    font-size: 0.9rem;
}

#stage-filter {
    flex: 1;
    padding: 0.5rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.9rem;
    background: white;
    cursor: pointer;
}

/* Schedule Container */
.schedule-container {
    padding: 1rem;
    max-width: 100%;
}

.day-section {
    margin-bottom: 2rem;
}

.day-header {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.8rem;
    color: var(--acl-dark);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--acl-red);
}

.artists-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.artist-card {
    background: white;
    border-radius: 12px;
    padding: 1rem;
    margin-bottom: 0.75rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    position: relative;
}

.artist-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.artist-card.selected {
    border-color: var(--acl-red);
    background: linear-gradient(to right, #fff, #ffe6e8);
}

.artist-card.friend-selected {
    border-color: var(--acl-blue);
    background: linear-gradient(to right, #fff, #e6f4f7);
}

.artist-card.both-selected {
    border-color: var(--success);
    background: linear-gradient(to right, #fff, #e6f7ea);
}

.artist-info {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
}

.artist-details {
    flex: 1;
}

.artist-name {
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
    color: var(--text-dark);
}

.artist-time {
    font-size: 0.9rem;
    color: #6c757d;
    font-weight: 500;
}

.artist-stage {
    font-size: 0.85rem;
    color: var(--acl-blue);
    font-weight: 600;
    margin-top: 0.25rem;
}

.selection-indicator {
    width: 28px;
    height: 28px;
    border: 3px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.artist-card.selected .selection-indicator {
    background: var(--acl-red);
    border-color: var(--acl-red);
}

.artist-card.friend-selected .selection-indicator {
    background: var(--acl-blue);
    border-color: var(--acl-blue);
}

.artist-card.both-selected .selection-indicator {
    background: var(--success);
    border-color: var(--success);
}

.selection-indicator::after {
    content: '✓';
    color: white;
    font-weight: bold;
    font-size: 1rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.artist-card.selected .selection-indicator::after,
.artist-card.friend-selected .selection-indicator::after,
.artist-card.both-selected .selection-indicator::after {
    opacity: 1;
}

.comparison-badge {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
}

.badge-shared {
    background: var(--success);
    color: white;
}

.badge-yours {
    background: var(--acl-red);
    color: white;
}

.badge-theirs {
    background: var(--acl-blue);
    color: white;
}

/* Action Buttons */
.action-buttons {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: white;
    padding: 1rem;
    box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.1);
    display: flex;
    gap: 0.75rem;
    z-index: 100;
}

.btn-primary {
    flex: 1;
    padding: 1rem;
    background: var(--acl-red);
    color: white;
    border: none;
    border-radius: 12px;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-primary:hover {
    background: #d62839;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(230, 57, 70, 0.3);
}

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

.btn-secondary {
    padding: 0.75rem 1.5rem;
    background: var(--acl-blue);
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: #3a6a85;
}

.btn-text {
    padding: 0.5rem 1rem;
    background: transparent;
    color: var(--acl-dark);
    border: none;
    font-weight: 600;
    cursor: pointer;
    text-decoration: underline;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: white;
    border-radius: 16px;
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.modal-wide {
    max-width: 800px;
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 2px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.8rem;
    color: var(--acl-dark);
}

.close-modal {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: #6c757d;
    line-height: 1;
    padding: 0;
    width: 2rem;
    height: 2rem;
}

.close-modal:hover {
    color: var(--acl-red);
}

.modal-body {
    padding: 1.5rem;
}

.share-link-container {
    display: flex;
    gap: 0.5rem;
    margin: 1rem 0;
}

#share-link {
    flex: 1;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-family: monospace;
    font-size: 0.85rem;
}

.share-hint {
    font-size: 0.9rem;
    color: #6c757d;
    margin-top: 1rem;
}

/* Card Options */
.card-options {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.card-option {
    display: flex;
    align-items: center;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.card-option:hover {
    border-color: var(--acl-blue);
    background: var(--bg-light);
}

.card-option input[type="radio"] {
    margin-right: 0.75rem;
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.card-option input[type="radio"]:checked + span {
    color: var(--acl-red);
    font-weight: 700;
}

.card-style-options,
.card-font-options {
    margin-bottom: 1.5rem;
}

.card-style-options h3,
.card-font-options h3 {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
    color: var(--acl-dark);
}

.style-selector,
.font-selector {
    display: flex;
    gap: 0.75rem;
}

.style-option,
.font-option {
    flex: 1;
    text-align: center;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.style-option:hover,
.font-option:hover {
    border-color: var(--acl-blue);
}

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

.style-option input[type="radio"]:checked + span,
.font-option input[type="radio"]:checked + span {
    color: var(--acl-red);
    font-weight: 700;
}

.card-preview {
    margin: 1.5rem 0;
    background: var(--bg-light);
    border-radius: 12px;
    padding: 1rem;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.card-preview canvas {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.card-actions {
    display: flex;
    justify-content: center;
}

/* Comparison Details */
.comparison-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-light);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
}

.stat-number {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 3rem;
    color: var(--acl-red);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: #6c757d;
    font-weight: 600;
}

.comparison-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.comparison-section {
    background: white;
    border-radius: 12px;
    padding: 1rem;
    border: 2px solid var(--border-color);
}

.comparison-section h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--acl-dark);
}

.comparison-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.comparison-item {
    padding: 0.75rem;
    background: var(--bg-light);
    border-radius: 8px;
    font-size: 0.95rem;
}

.comparison-item strong {
    color: var(--acl-dark);
}

.comparison-item .time {
    color: #6c757d;
    font-size: 0.85rem;
    margin-left: 0.5rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .logo h1 {
        font-size: 2rem;
    }

    .tab {
        font-size: 0.85rem;
        padding: 0.75rem;
    }

    .action-buttons {
        flex-direction: column;
    }

    .btn-primary {
        font-size: 0.9rem;
    }

    .comparison-stats {
        grid-template-columns: 1fr;
    }

    .style-selector {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .logo h1 {
        font-size: 1.5rem;
    }

    .artist-name {
        font-size: 1rem;
    }

    .artist-time {
        font-size: 0.85rem;
    }
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: #6c757d;
}

.empty-state h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--acl-dark);
}

.empty-state p {
    font-size: 1rem;
}