/* ============================================================
   Landing Page Basic Styles
   ============================================================ */

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

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

/* Container - using single definition at line 325 */

/* Header */
.header {
    background: var(--header-bg);
    padding: 3rem 0;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.header h1 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header .subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

/* Navigation */
.nav {
    background: var(--bg-secondary);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border-color);
}

.nav .container {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

.nav-link {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: all 0.3s ease;
}

.nav-link:hover {
    background: var(--hover-bg);
    color: var(--primary-color);
}

.nav-link.active {
    background: rgba(102, 126, 234, 0.2);
    color: var(--primary-color);
    border: 1px solid rgba(102, 126, 234, 0.3);
}

/* Main Content */
main {
    padding: 3rem 0;
}

.section {
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2rem;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--text-primary);
}

.section-title i {
    font-size: 2.5rem;
    color: var(--primary-color);
}

/* Placeholder Cards */
.placeholder-card {
    background: var(--bg-card);
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 3rem;
    text-align: center;
    color: var(--text-secondary);
}

.placeholder-card i {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: var(--text-tertiary);
}

.gallery-grid,
.artists-grid,
.exhibitions-grid,
.collections-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
    margin-top: 4rem;
}

.footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer p {
    color: var(--text-secondary);
}

.admin-link {
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.admin-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

/* Responsive */
@media (max-width: 768px) {
    .header h1 {
        font-size: 2rem;
    }
    
    .header .subtitle {
        font-size: 1rem;
    }
    
    .container {
        padding: 0 1rem;
    }
    
    .nav .container {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .footer .container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .gallery-grid,
    .artists-grid,
    .exhibitions-grid,
    .collections-grid {
        grid-template-columns: 1fr;
    }
}
/* 815K Styles - Phase 6: Dark Mode Default */

:root {
    /* 다크모드를 기본으로 설정 */
    --bg-primary: #0f0f0f;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #21262d;
    --bg-card: rgba(255, 255, 255, 0.03);
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --text-tertiary: #6e7681;
    --border-color: rgba(255, 255, 255, 0.1);
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
    --header-bg: rgba(15, 15, 15, 0.95);
    --primary-color: #00c9ff;
    --accent: #00c9ff;
    --secondary-color: #bc6ff1;
    --success-color: #43e97b;
    --error-color: #f85149;
    --warning-color: #ffc107;
    --info-color: #58a6ff;
    --info-bg: rgba(56, 139, 253, 0.15);
    --hover-bg: rgba(255, 255, 255, 0.05);
    --input-bg: rgba(255, 255, 255, 0.03);
}

body.light-mode {
    /* 라이트모드는 선택사항 */
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f5;
    --bg-tertiary: #e8e8e8;
    --bg-card: #ffffff;
    --text-primary: #1a1a1a;
    --text-secondary: #666;
    --text-tertiary: #999;
    --border-color: rgba(0, 0, 0, 0.08);
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    --header-bg: rgba(255, 255, 255, 0.98);
    --primary-color: #2196F3;
    --accent: #2196F3;
    --secondary-color: #9C27B0;
    --success-color: #4CAF50;
    --error-color: #f44336;
    --warning-color: #ff9800;
    --info-color: #2196F3;
    --info-bg: #e3f2fd;
    --hover-bg: #f5f5f5;
    --input-bg: #ffffff;
}

/* 하위 호환성을 위한 dark-mode 클래스 유지 */
body.dark-mode {
    --bg-primary: #0f0f0f;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #21262d;
    --bg-card: rgba(255, 255, 255, 0.03);
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --text-tertiary: #6e7681;
    --border-color: rgba(255, 255, 255, 0.1);
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
    --header-bg: rgba(15, 15, 15, 0.95);
    --primary-color: #00c9ff;
    --accent: #00c9ff;
    --secondary-color: #bc6ff1;
    --success-color: #43e97b;
    --error-color: #f85149;
    --warning-color: #ffc107;
    --info-color: #58a6ff;
    --info-bg: rgba(56, 139, 253, 0.15);
    --hover-bg: rgba(255, 255, 255, 0.05);
    --input-bg: rgba(255, 255, 255, 0.03);
}

/* Breadcrumb */
.breadcrumb {
    margin-bottom: 1.5rem;
    padding: 0.75rem 0;
}

.breadcrumb-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    flex-wrap: nowrap;
    overflow-x: auto;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.2s ease;
    white-space: nowrap;
}

.breadcrumb-item:hover {
    color: var(--accent);
}

.breadcrumb-item.active {
    color: var(--text-primary);
    font-weight: 500;
}

.breadcrumb-separator {
    color: #6b7280;
    user-select: none;
}

/* Legacy breadcrumb support */
.breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
    display: flex;
    align-items: center;
    gap: 4px;
}

.breadcrumb a:hover {
    color: var(--primary-color);
}

.breadcrumb .separator {
    color: var(--text-tertiary);
    margin: 0 4px;
}

.breadcrumb .current {
    color: var(--text-primary);
    font-weight: 500;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans KR', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    transition: background 0.3s ease, color 0.3s ease;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    padding-top: 100px;
    min-height: 100vh;
}

/* Header */
.minimal-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--header-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 100;
    padding: 1rem 0;
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-title h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.subtitle {
    font-size: 13px;
    color: var(--text-tertiary);
    margin-top: 2px;
}

.header-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.header-btn {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    font-size: 20px;
}

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

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-card);
    padding: 24px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.stat-value {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 500;
}

/* Main Sections */
.main-sections {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 24px;
}

.section-card {
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    padding: 24px;
    box-shadow: var(--shadow);
}

.section-header {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.section-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.quick-actions {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.action-card {
    background: var(--bg-secondary);
    padding: 20px 16px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    text-align: center;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.2s;
    cursor: pointer;
}

.action-card:hover {
    background: var(--hover-bg);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.action-card:active {
    transform: scale(0.98);
}

.action-card i {
    font-size: 28px;
    color: var(--text-secondary);
    display: block;
    margin-bottom: 8px;
}

.action-card span {
    font-size: 14px;
    font-weight: 600;
    display: block;
}

/* Sales Stats */
.sales-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 20px;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: 10px;
    border: 1px solid var(--border-color);
}

.mini-stat {
    text-align: center;
}

.mini-stat-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.mini-stat-label {
    font-size: 12px;
    color: var(--text-tertiary);
}

/* Categories List */
.section {
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    padding: 24px;
    margin-top: 24px;
    box-shadow: var(--shadow);
}

.categories-list {
    display: grid;
    gap: 12px;
}

.category-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.category-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 15px;
}

.category-count {
    color: var(--text-tertiary);
    font-size: 13px;
}

/* Activities List */
.activities-list {
    display: grid;
    gap: 12px;
}

.activity-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 14px;
}

.activity-item i {
    font-size: 20px;
}

/* Responsive */
@media (max-width: 1024px) {
    .main-sections {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 16px;
        padding-top: 70px;
    }

    .header-title h1 {
        font-size: 20px;
    }

    .subtitle {
        font-size: 12px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .stat-value {
        font-size: 28px;
    }

    .stat-label {
        font-size: 12px;
    }

    .main-sections {
        gap: 16px;
    }

    .section-card {
        padding: 20px;
    }

    .section-title {
        font-size: 18px;
    }

    .quick-actions {
        gap: 10px;
    }

    .action-card {
        padding: 16px 12px;
    }

    .action-card i {
        font-size: 24px;
    }

    .action-card span {
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

/* Database Tables Grid */
.db-tables-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.db-table-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.3s ease;
}

.db-table-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.db-table-icon {
    font-size: 2rem;
    opacity: 0.9;
}

.db-table-info {
    flex: 1;
}

.db-table-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.db-table-count {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.db-table-update {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* AI Assistant */
.ai-assistant-content {
    padding: 0.5rem 0;
}

.ai-quick-questions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.75rem;
}

.ai-question-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
}

.ai-question-btn:hover {
    background: var(--hover-bg);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.2);
    border-color: rgba(102, 126, 234, 0.5);
}

.ai-question-btn i {
    font-size: 1.5rem;
    color: #667eea;
}

.btn-text {
    background: transparent;
    border: none;
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-text:hover {
    background: var(--hover-bg);
}

/* AI Assistant FAB Button */
.ai-assistant-fab {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.4);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 999;
}

.ai-assistant-fab:hover {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 6px 30px rgba(102, 126, 234, 0.6);
}

.ai-assistant-fab:active {
    transform: scale(0.95);
}

.ai-assistant-fab i {
    font-size: 2rem;
    color: white;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

/* AI Chat Modal */
.ai-chat-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.92);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    backdrop-filter: blur(10px);
}

.ai-chat-modal.active {
    display: flex;
}

.ai-chat-container {
    background: var(--bg-card);
    border-radius: 16px;
    width: 90%;
    max-width: 800px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

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

.ai-chat-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.ai-chat-close {
    background: transparent;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 0.5rem;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.ai-chat-close:hover {
    background: var(--hover-bg);
    color: var(--text-primary);
}

.ai-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.ai-message {
    display: flex;
    gap: 1rem;
    animation: slideIn 0.3s ease;
}

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

.ai-message-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.ai-message.user .ai-message-avatar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.ai-message.assistant .ai-message-avatar {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.ai-message-content {
    flex: 1;
    padding: 1rem;
    border-radius: 12px;
    line-height: 1.6;
}

.ai-message.user .ai-message-content {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.ai-message.assistant .ai-message-content {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border: 1px solid rgba(102, 126, 234, 0.2);
    color: var(--text-primary);
}

.ai-chat-input-container {
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.ai-chat-input-wrapper {
    display: flex;
    gap: 0.75rem;
}

.ai-chat-input {
    flex: 1;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: inherit;
    resize: none;
    min-height: 60px;
    max-height: 150px;
}

.ai-chat-input:focus {
    outline: none;
    border-color: #667eea;
}

.ai-chat-send {
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.ai-chat-send:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.ai-chat-send:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.ai-thinking {
    display: flex;
    gap: 0.5rem;
    padding: 1rem;
}

.ai-thinking-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #667eea;
    animation: thinking 1.4s infinite;
}

.ai-thinking-dot:nth-child(2) {
    animation-delay: 0.2s;
}

.ai-thinking-dot:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes thinking {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.7;
    }
    30% {
        transform: translateY(-10px);
        opacity: 1;
    }
}

/* AI Cancel Button */
.ai-cancel-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
    padding: 0.5rem 1rem;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: 8px;
    color: #ef4444;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.ai-cancel-btn:hover {
    background: rgba(239, 68, 68, 0.2);
    border-color: #ef4444;
    transform: translateY(-1px);
}

.ai-cancel-btn i {
    font-size: 1.125rem;
}

body.dark-mode .ai-cancel-btn {
    background: rgba(239, 68, 68, 0.15);
    border-color: rgba(239, 68, 68, 0.4);
}

body.dark-mode .ai-cancel-btn:hover {
    background: rgba(239, 68, 68, 0.25);
    border-color: #ef4444;
}

/* TODO Note Button */
.btn-todo {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: 1rem;
    padding: 0;
    background: none;
    border: none;
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-todo:hover {
    opacity: 0.7;
}

.btn-todo i {
    font-size: 1.2rem;
}

/* TODO Note Modal */
.todo-note-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    z-index: 10000;
    align-items: center;
    justify-content: center;
}

.todo-note-modal.active {
    display: flex;
}

.todo-note-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    width: 90%;
    max-width: 900px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.todo-note-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border-color);
}

.todo-note-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.todo-note-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: 8px;
    color: #ef4444;
    cursor: pointer;
    transition: all 0.3s ease;
}

.todo-note-close:hover {
    background: rgba(239, 68, 68, 0.2);
    transform: rotate(90deg);
}

.todo-note-close i {
    font-size: 1.5rem;
}

.todo-note-body {
    padding: 2rem;
    overflow-y: auto;
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.todo-note-section h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

/* Task List Styles */
.task-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.task-input-container {
    margin-bottom: 1rem;
}

.task-input {
    width: 100%;
    padding: 0.75rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.task-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.task-input::placeholder {
    color: var(--text-tertiary);
}

.task-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.task-item:hover {
    background: var(--bg-tertiary);
}

.task-checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex: 1;
    cursor: pointer;
}

.task-checkbox {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.task-text {
    color: var(--text-primary);
    font-size: 0.95rem;
    line-height: 1.5;
    transition: all 0.3s ease;
}

.task-text.completed {
    color: var(--text-tertiary);
    text-decoration: line-through;
}

.task-delete {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: 6px;
    color: #ef4444;
    cursor: pointer;
    opacity: 0;
    transition: all 0.3s ease;
}

.task-item:hover .task-delete {
    opacity: 1;
}

.task-delete:hover {
    background: rgba(239, 68, 68, 0.2);
    transform: scale(1.1);
}

.task-delete i {
    font-size: 1.1rem;
}

.todo-note-footer {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    padding: 1.5rem 2rem;
    border-top: 1px solid var(--border-color);
}

.btn-secondary {
    padding: 0.75rem 1.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: var(--bg-tertiary);
    transform: translateY(-2px);
}

.btn-primary {
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, #764ba2 100%);
    border: none;
    border-radius: 8px;
    color: white;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.btn-primary i {
    font-size: 1.1rem;
}

/* Dark mode overrides */
body.dark-mode .btn-todo {
    color: #8b9bea;
}

@media (max-width: 768px) {
    .todo-note-body {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .todo-note-container {
        width: 95%;
        max-height: 95vh;
    }

    .todo-note-header {
        padding: 1rem 1.5rem;
    }

    .todo-note-body {
        padding: 1.5rem;
    }

    .todo-note-footer {
        padding: 1rem 1.5rem;
    }
}

/* ============================================================
   Test Scenarios Section Styles
   ============================================================ */

/* Test Banner */
.test-banner {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border: 2px solid rgba(102, 126, 234, 0.3);
    border-radius: 12px;
    padding: 1.5rem 2rem;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    animation: pulse-border 3s infinite;
}

@keyframes pulse-border {
    0%, 100% {
        border-color: rgba(102, 126, 234, 0.3);
        box-shadow: 0 0 0 rgba(102, 126, 234, 0);
    }
    50% {
        border-color: rgba(102, 126, 234, 0.6);
        box-shadow: 0 0 20px rgba(102, 126, 234, 0.2);
    }
}

.test-banner-icon {
    font-size: 3rem;
    animation: rotate-360 8s linear infinite;
}

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

.test-banner-content {
    flex: 1;
}

.test-banner-content h3 {
    margin: 0 0 0.5rem 0;
    font-size: 1.5rem;
    color: var(--text-primary);
}

.test-banner-content p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.test-status {
    display: flex;
    gap: 0.5rem;
}

.status-badge {
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.status-badge.status-success {
    background: rgba(67, 233, 123, 0.2);
    color: var(--success-color);
    border: 1px solid rgba(67, 233, 123, 0.3);
}

/* Test Grid */
.test-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

/* Test Cards */
.test-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.test-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.test-card.quick-test {
    border-top: 3px solid #43e97b;
}

.test-card.core-test {
    border-top: 3px solid #00c9ff;
}

.test-card.full-test {
    border-top: 3px solid #bc6ff1;
}

.test-card.auto-test {
    border-top: 3px solid #ffc107;
}

/* Test Card Header */
.test-card-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.test-card-header i {
    font-size: 2rem;
}

.quick-test .test-card-header i {
    color: #43e97b;
}

.core-test .test-card-header i {
    color: #00c9ff;
}

.full-test .test-card-header i {
    color: #bc6ff1;
}

.auto-test .test-card-header i {
    color: #ffc107;
}

.test-card-header h3 {
    flex: 1;
    margin: 0;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.test-duration {
    padding: 0.25rem 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Test Card Body */
.test-card-body {
    padding: 1.5rem;
    flex: 1;
}

.test-description {
    margin: 0 0 1rem 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.test-checklist {
    list-style: none;
    padding: 0;
    margin: 0;
}

.test-checklist li {
    padding: 0.5rem 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.test-checklist input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

/* Auto Test Results */
.auto-test-result {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.result-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
}

.result-item i {
    font-size: 1.25rem;
}

.result-item.success i {
    color: var(--success-color);
}

.result-item span {
    flex: 1;
    font-size: 0.9rem;
    color: var(--text-primary);
}

/* Test Card Footer */
.test-card-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 0.75rem;
}

.test-btn {
    flex: 1;
    padding: 0.75rem 1rem;
    border: none;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
}

.test-btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.test-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.test-btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.test-btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Test Progress Section */
.test-progress-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    margin-top: 2rem;
}

.test-progress-section h3 {
    margin: 0 0 1.5rem 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-primary);
}

.test-progress-section h3 i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

/* Progress Bar */
.progress-bar {
    width: 100%;
    height: 40px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    overflow: hidden;
    margin-bottom: 1.5rem;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #43e97b 0%, #38f9d7 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1rem;
    transition: width 0.5s ease;
    position: relative;
    overflow: hidden;
}

.progress-fill::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    to {
        left: 100%;
    }
}

/* Progress Stats */
.progress-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.stat-value {
    font-size: 1.25rem;
    font-weight: 700;
}

.stat-value.success {
    color: var(--success-color);
}

.stat-value.pending {
    color: var(--warning-color);
}

/* Responsive */
@media (max-width: 768px) {
    .test-banner {
        flex-direction: column;
        text-align: center;
        padding: 1.5rem;
    }
    
    .test-banner-icon {
        font-size: 2.5rem;
    }
    
    .test-grid {
        grid-template-columns: 1fr;
    }
    
    .progress-stats {
        grid-template-columns: 1fr;
    }
    
    .test-card-footer {
        flex-direction: column;
    }
}

/* ============================================================
   Modal Styles
   ============================================================ */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-dialog {
    background: var(--card-bg, #1a1d2e);
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    max-width: 480px;
    width: 90%;
    overflow: hidden;
    transform: scale(0.9) translateY(-20px);
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.modal-dialog.active {
    transform: scale(1) translateY(0);
    opacity: 1;
}

.modal-content {
    padding: 0;
}

.modal-header {
    padding: 2rem 2rem 1rem;
    text-align: center;
}

.modal-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: bold;
}

.modal-icon-success {
    background: rgba(76, 175, 80, 0.1);
    color: #4CAF50;
}

.modal-icon-error {
    background: rgba(244, 67, 54, 0.1);
    color: #F44336;
}

.modal-icon-warning {
    background: rgba(255, 152, 0, 0.1);
    color: #FF9800;
}

.modal-icon-info {
    background: rgba(33, 150, 243, 0.1);
    color: #2196F3;
}

.modal-icon-question {
    background: rgba(156, 39, 176, 0.1);
    color: #9C27B0;
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary, #fff);
    margin: 0;
}

.modal-body {
    padding: 0 2rem 2rem;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-secondary, rgba(255, 255, 255, 0.7));
    text-align: center;
}

.modal-footer {
    padding: 1.5rem 2rem;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

.modal-btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.modal-btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.modal-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.modal-btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary, #fff);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.modal-btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
}

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