/* ==========================================================================
   Admin Panel - Main Stylesheet
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Variables (поддержка темной темы в будущем)
   -------------------------------------------------------------------------- */
:root {
    /* Colors */
    --color-primary: #3b82f6;
    --color-primary-hover: #2563eb;
    --color-primary-light: #eff6ff;
    --color-primary-lighter: #dbeafe;
    
    --color-success: #22c55e;
    --color-success-light: #f0fdf4;
    --color-success-dark: #16a34a;
    
    --color-warning: #eab308;
    --color-warning-light: #fefce8;
    
    --color-danger: #dc2626;
    --color-danger-light: #fee2e2;
    
    /* Grays */
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;
    
    /* Background */
    --bg-body: #f5f7fa;
    --bg-card: #ffffff;
    --bg-header: #ffffff;
    
    /* Borders */
    --border-color: #e5e7eb;
    --border-radius-sm: 6px;
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition: 200ms ease;
    --transition-slow: 300ms ease;
    
    /* Logo colors */
    --logo-green: #B4D61E;
    --logo-purple: #6366f1;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-body);
    min-height: 100vh;
    color: var(--color-gray-700);
    line-height: 1.5;
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

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

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

.animate-fade-in {
    animation: fadeIn var(--transition-slow) ease-out;
}

.animate-slide-in {
    animation: slideIn var(--transition-slow) ease-out;
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */
.header {
    background: var(--bg-header);
    padding: 16px 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 32px;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(8px);
    background: rgba(255, 255, 255, 0.95);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    transition: opacity var(--transition);
}

.logo-container:hover {
    opacity: 0.8;
}

.logo-icon {
    display: grid;
    grid-template-columns: 18px 18px;
    grid-template-rows: 18px 18px;
    width: 36px;
    height: 36px;
    gap: 0;
}

.logo-square-green {
    background: var(--logo-green);
    grid-column: 1;
    grid-row: 1;
}

.logo-square-white-g,
.logo-square-white-s {
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 700;
    color: #000;
}

.logo-square-white-g { grid-column: 2; grid-row: 1; }
.logo-square-white-s { grid-column: 1; grid-row: 2; }

.logo-square-purple {
    background: var(--logo-purple);
    grid-column: 2;
    grid-row: 2;
}

.logo-text {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-gray-800);
}

.project-badge {
    background: var(--color-gray-100);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 8px 16px;
    font-size: 14px;
    color: var(--color-gray-700);
    transition: all var(--transition);
}

.project-badge:hover {
    background: var(--color-gray-200);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.logout-link {
    color: var(--color-gray-500);
    text-decoration: none;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px 12px;
    border-radius: var(--border-radius);
    transition: all var(--transition);
}

.logout-link:hover {
    color: var(--color-gray-700);
    background: var(--color-gray-100);
}

/* --------------------------------------------------------------------------
   Main Container
   -------------------------------------------------------------------------- */
.main-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px 48px;
}

/* --------------------------------------------------------------------------
   Period Tabs
   -------------------------------------------------------------------------- */
.period-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    background: var(--color-gray-100);
    border-radius: var(--border-radius-lg);
    padding: 4px;
    width: fit-content;
}

.period-tab {
    padding: 10px 20px;
    border-radius: var(--border-radius);
    font-size: 14px;
    font-weight: 500;
    color: var(--color-gray-500);
    text-decoration: none;
    transition: all var(--transition);
}

.period-tab:hover {
    color: var(--color-gray-700);
}

.period-tab.active {
    background: white;
    color: var(--color-gray-800);
    box-shadow: var(--shadow);
}

/* --------------------------------------------------------------------------
   Stat Cards
   -------------------------------------------------------------------------- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-xl);
    padding: 24px;
    transition: all var(--transition);
    animation: fadeIn var(--transition-slow) ease-out;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-gray-300);
}

.stat-top {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.stat-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: transform var(--transition);
}

.stat-card:hover .stat-icon {
    transform: scale(1.1);
}

.stat-icon.blue {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

.stat-icon.green {
    background: var(--color-success-light);
    color: var(--color-success);
}

.stat-icon.yellow {
    background: var(--color-warning-light);
    color: var(--color-warning);
}

.stat-icon svg {
    width: 22px;
    height: 22px;
}

.stat-label {
    font-size: 14px;
    color: var(--color-gray-500);
}

.stat-value-row {
    display: flex;
    align-items: baseline;
    gap: 12px;
}

.stat-value {
    font-size: 40px;
    font-weight: 700;
    color: var(--color-gray-800);
    line-height: 1;
}

.stat-badge {
    font-size: 13px;
    padding: 4px 10px;
    border-radius: 20px;
    font-weight: 500;
}

.stat-badge.green {
    background: #dcfce7;
    color: var(--color-success-dark);
}

.stat-badge.red {
    background: var(--color-danger-light);
    color: var(--color-danger);
}

.stat-subtitle {
    font-size: 13px;
    color: var(--color-gray-400);
    margin-top: 4px;
}

/* --------------------------------------------------------------------------
   Action Buttons
   -------------------------------------------------------------------------- */
.action-buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 32px;
}

.action-btn {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 15px;
    font-weight: 500;
    color: var(--color-gray-700);
    text-decoration: none;
    transition: all var(--transition);
    cursor: pointer;
}

.action-btn:hover {
    background: var(--color-gray-50);
    border-color: var(--color-gray-300);
    color: var(--color-gray-800);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.action-btn svg {
    width: 20px;
    height: 20px;
    color: var(--color-gray-500);
    transition: color var(--transition);
}

.action-btn:hover svg {
    color: var(--color-primary);
}

.action-btn.dropdown-toggle::after {
    margin-left: auto;
}

/* --------------------------------------------------------------------------
   Dropdown Menu
   -------------------------------------------------------------------------- */
.dropdown-menu {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    padding: 4px;
    min-width: 200px;
    animation: scaleIn var(--transition-fast) ease-out;
}

.dropdown-item {
    border-radius: var(--border-radius-sm);
    padding: 10px 14px;
    font-size: 14px;
    display: flex;
    align-items: center;
    color: var(--color-gray-700);
    transition: all var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--color-gray-100);
    color: var(--color-gray-800);
}

.dropdown-item i {
    color: var(--color-gray-500);
}

/* --------------------------------------------------------------------------
   Table Section
   -------------------------------------------------------------------------- */
.table-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    animation: fadeIn var(--transition-slow) ease-out;
}

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

.table-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-gray-800);
    margin: 0;
}

.table-link {
    font-size: 14px;
    color: var(--color-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 10px;
    border-radius: var(--border-radius);
    transition: all var(--transition);
}

.table-link:hover {
    color: var(--color-primary-hover);
    background: var(--color-primary-light);
}

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

.data-table th {
    text-align: left;
    padding: 14px 24px;
    font-size: 13px;
    font-weight: 500;
    color: var(--color-gray-500);
    background: var(--color-gray-50);
    border-bottom: 1px solid var(--border-color);
}

.data-table td {
    padding: 16px 24px;
    font-size: 14px;
    color: var(--color-gray-700);
    border-bottom: 1px solid var(--color-gray-100);
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

.data-table tbody tr {
    transition: background var(--transition-fast);
}

.data-table tbody tr:hover {
    background: var(--color-gray-50);
}

.telegram-id {
    color: var(--color-gray-800);
    font-weight: 500;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.username-badge {
    display: inline-block;
    background: var(--color-primary-light);
    color: var(--color-primary);
    padding: 6px 12px;
    border-radius: var(--border-radius-sm);
    font-size: 13px;
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition);
}

.username-badge:hover {
    background: var(--color-primary-lighter);
    color: var(--color-primary-hover);
    transform: translateY(-1px);
}

.player-name {
    font-weight: 500;
    color: var(--color-gray-800);
}

/* --------------------------------------------------------------------------
   Empty State
   -------------------------------------------------------------------------- */
.empty-state {
    text-align: center;
    padding: 48px;
    color: var(--color-gray-400);
}

.empty-state svg {
    width: 48px;
    height: 48px;
    margin-bottom: 16px;
}

.empty-state-icon {
    width: 120px;
    height: 120px;
    margin: 0 auto 24px;
    background: var(--color-gray-100);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition);
}

.empty-state:hover .empty-state-icon {
    transform: scale(1.05);
}

.empty-state-icon svg {
    width: 64px;
    height: 64px;
    color: var(--color-gray-300);
}

.empty-state-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-gray-800);
    margin: 0 0 12px 0;
}

.empty-state-description {
    font-size: 14px;
    color: var(--color-gray-500);
    margin: 0 0 32px 0;
    line-height: 1.6;
}

/* --------------------------------------------------------------------------
   Skeleton Loading
   -------------------------------------------------------------------------- */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--color-gray-200) 0%,
        var(--color-gray-100) 50%,
        var(--color-gray-200) 100%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--border-radius);
}

.skeleton-text {
    height: 16px;
    margin-bottom: 8px;
}

.skeleton-text.short { width: 60%; }
.skeleton-text.medium { width: 80%; }
.skeleton-text.long { width: 100%; }

.skeleton-circle {
    border-radius: 50%;
}

.skeleton-row {
    display: flex;
    align-items: center;
    padding: 16px 24px;
    gap: 16px;
    border-bottom: 1px solid var(--color-gray-100);
}

.skeleton-cell {
    height: 20px;
    flex: 1;
}

/* --------------------------------------------------------------------------
   Charts Section
   -------------------------------------------------------------------------- */
.chart-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-xl);
    padding: 24px;
    margin-bottom: 24px;
    animation: fadeIn var(--transition-slow) ease-out;
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.chart-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-gray-800);
    margin: 0;
}

.chart-container {
    position: relative;
    height: 250px;
}

/* --------------------------------------------------------------------------
   Toast Notifications
   -------------------------------------------------------------------------- */
.toast-container {
    position: fixed;
    top: 24px;
    right: 24px;
    z-index: 1100;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.toast {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 16px 20px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 300px;
    max-width: 400px;
    animation: slideIn var(--transition) ease-out;
}

.toast.toast-success {
    border-left: 4px solid var(--color-success);
}

.toast.toast-error {
    border-left: 4px solid var(--color-danger);
}

.toast.toast-info {
    border-left: 4px solid var(--color-primary);
}

.toast-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.toast-success .toast-icon { color: var(--color-success); }
.toast-error .toast-icon { color: var(--color-danger); }
.toast-info .toast-icon { color: var(--color-primary); }

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    color: var(--color-gray-800);
    font-size: 14px;
}

.toast-message {
    color: var(--color-gray-500);
    font-size: 13px;
    margin-top: 2px;
}

.toast-close {
    background: none;
    border: none;
    color: var(--color-gray-400);
    cursor: pointer;
    padding: 4px;
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
}

.toast-close:hover {
    background: var(--color-gray-100);
    color: var(--color-gray-600);
}

/* --------------------------------------------------------------------------
   Page Header
   -------------------------------------------------------------------------- */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.page-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--color-gray-800);
    margin: 0;
}

.total-badge {
    background: var(--bg-card);
    border: 1px solid var(--color-primary);
    border-radius: 20px;
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-primary);
    transition: all var(--transition);
}

.total-badge:hover {
    background: var(--color-primary-light);
}

/* --------------------------------------------------------------------------
   Filters Bar
   -------------------------------------------------------------------------- */
.filters-bar {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.export-btn {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 10px 16px;
    font-size: 14px;
    color: var(--color-gray-700);
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    transition: all var(--transition);
}

.export-btn:hover {
    background: var(--color-gray-50);
    border-color: var(--color-gray-300);
}

.export-btn svg {
    width: 18px;
    height: 18px;
    color: var(--color-gray-500);
}

.date-filter {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 8px 16px;
    transition: all var(--transition);
}

.date-filter:hover,
.date-filter:focus-within {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.date-filter-label {
    font-size: 14px;
    color: var(--color-gray-500);
    white-space: nowrap;
}

.date-input {
    border: none;
    background: transparent;
    font-size: 14px;
    color: var(--color-gray-800);
    width: 130px;
    padding: 4px 8px;
    outline: none;
    cursor: pointer;
}

.date-input:focus {
    background: var(--color-gray-50);
    border-radius: var(--border-radius);
}

.date-separator {
    color: var(--color-gray-300);
    font-size: 14px;
}

.search-box {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 8px 16px;
    flex: 1;
    max-width: 320px;
    transition: all var(--transition);
}

.search-box:focus-within {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.search-box svg {
    width: 18px;
    height: 18px;
    color: var(--color-gray-400);
    flex-shrink: 0;
}

.search-input {
    border: none;
    background: transparent;
    font-size: 14px;
    color: var(--color-gray-800);
    width: 100%;
    outline: none;
}

.search-input::placeholder {
    color: var(--color-gray-400);
}

/* --------------------------------------------------------------------------
   Users Table
   -------------------------------------------------------------------------- */
.users-table-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    position: relative;
}

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

.users-table th {
    text-align: left;
    padding: 16px 24px;
    font-size: 13px;
    font-weight: 500;
    color: var(--color-gray-500);
    background: var(--color-gray-50);
    border-bottom: 1px solid var(--border-color);
}

.users-table td {
    padding: 16px 24px;
    font-size: 14px;
    color: var(--color-gray-700);
    border-bottom: 1px solid var(--color-gray-100);
}

.users-table tbody tr:last-child td {
    border-bottom: none;
}

.users-table tbody tr {
    transition: background var(--transition-fast);
}

.users-table tbody tr:hover {
    background: var(--color-gray-50);
}

.username-link {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.username-link:hover {
    color: var(--color-primary-hover);
    text-decoration: underline;
}

.user-name {
    color: var(--color-gray-800);
    font-weight: 500;
}

.text-muted {
    color: var(--color-gray-400);
}

.no-username {
    color: var(--color-gray-300);
    font-size: 12px;
}

.activity-time {
    color: var(--color-gray-700);
}

/* --------------------------------------------------------------------------
   Pagination
   -------------------------------------------------------------------------- */
.pagination-container {
    display: flex;
    justify-content: center;
    padding: 16px;
    border-top: 1px solid var(--border-color);
}

.pagination {
    display: flex;
    gap: 4px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.page-link {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 12px;
    border-radius: var(--border-radius);
    font-size: 14px;
    color: var(--color-gray-700);
    text-decoration: none;
    transition: all var(--transition);
}

.page-link:hover {
    background: var(--color-gray-100);
}

.page-item.active .page-link {
    background: var(--color-primary);
    color: white;
}

.page-item.disabled .page-link {
    color: var(--color-gray-300);
    pointer-events: none;
}

/* --------------------------------------------------------------------------
   Loading Overlay
   -------------------------------------------------------------------------- */
.loading-overlay {
    position: relative;
}

.loading-overlay::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.7);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 10;
    backdrop-filter: blur(2px);
}

.loading-overlay.loading::after {
    display: flex;
}

/* --------------------------------------------------------------------------
   Open Bot Button
   -------------------------------------------------------------------------- */
.open-bot-btn {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 20px 32px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 15px;
    font-weight: 500;
    color: var(--color-gray-700);
    text-decoration: none;
    transition: all var(--transition);
    cursor: pointer;
    white-space: nowrap;
}

.open-bot-btn:hover {
    background: var(--color-gray-50);
    border-color: var(--color-gray-300);
    color: var(--color-gray-800);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.open-bot-btn svg {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .action-buttons {
        grid-template-columns: 1fr;
    }
    
    .header-container {
        flex-wrap: wrap;
        gap: 12px;
    }
    
    .project-badge {
        order: 3;
        width: 100%;
        text-align: center;
    }
    
    .filters-bar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-box {
        max-width: 100%;
    }
    
    .date-filter {
        flex-wrap: wrap;
        justify-content: center;
    }
}

/* --------------------------------------------------------------------------
   Flatpickr Overrides
   -------------------------------------------------------------------------- */
input.flatpickr-input[readonly] {
    background: transparent !important;
    border: none !important;
    font-size: 14px !important;
    color: var(--color-gray-800) !important;
    width: 130px !important;
    padding: 4px 8px !important;
    outline: none !important;
    cursor: pointer !important;
}

input.flatpickr-input[readonly]:focus {
    background: var(--color-gray-50) !important;
    border-radius: var(--border-radius) !important;
}

.flatpickr-calendar {
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    font-family: inherit;
}

.flatpickr-months {
    background: var(--color-primary);
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
    padding: 10px 0;
}

.flatpickr-current-month {
    color: white;
    font-size: 16px;
    font-weight: 500;
}

.flatpickr-month {
    color: white;
}

.flatpickr-monthDropdown-months {
    background: white;
    border-radius: var(--border-radius-sm);
    padding: 4px;
    margin: 0 4px;
}

.numInputWrapper input {
    background: white;
    border-radius: var(--border-radius-sm);
    padding: 4px;
}

.flatpickr-prev-month svg,
.flatpickr-next-month svg {
    fill: white;
}

.flatpickr-prev-month:hover svg,
.flatpickr-next-month:hover svg {
    fill: white;
}

.flatpickr-weekday {
    color: var(--color-gray-500);
    font-weight: 600;
}

.flatpickr-day {
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.flatpickr-day.selected,
.flatpickr-day.selected:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.flatpickr-day:hover {
    background: var(--color-primary-light);
    border-color: var(--color-primary-light);
}

.flatpickr-day.today {
    border-color: var(--color-primary);
    font-weight: 600;
}

.flatpickr-day.today:hover {
    background: var(--color-primary-light);
    border-color: var(--color-primary);
}

/* --------------------------------------------------------------------------
   Demo Watermark
   -------------------------------------------------------------------------- */
.demo-watermark {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(-30deg);
    font-size: 20vw;
    font-weight: 900;
    color: rgba(255, 0, 0, 0.08);
    pointer-events: none;
    z-index: 9999;
    user-select: none;
    white-space: nowrap;
    letter-spacing: 0.1em;
}

/* --------------------------------------------------------------------------
   Questions Editor
   -------------------------------------------------------------------------- */
.question-editor-container {
    max-width: 1200px;
    margin: 0 auto;
}

.question-editor-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 24px;
    margin-bottom: 20px;
    transition: all var(--transition);
}

.question-editor-card:hover {
    box-shadow: var(--shadow-sm);
}

.question-editor-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.question-editor-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-gray-800);
    margin: 0;
}

.question-add-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.question-input-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.question-input-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-gray-600);
}

.question-text-input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 14px;
    color: var(--color-gray-800);
    transition: all var(--transition);
    background: var(--bg-card);
}

.question-text-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.question-text-input::placeholder {
    color: var(--color-gray-400);
}

.answers-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.answer-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    background: var(--color-gray-50);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: all var(--transition);
}

.answer-item:hover {
    background: var(--bg-card);
}

.answer-item.is-correct {
    background: var(--color-success-light);
    border-color: var(--color-success);
}

.answer-radio-wrapper {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    position: relative;
}

.answer-radio {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.answer-radio-custom {
    display: block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-gray-300);
    border-radius: 50%;
    background: white;
    transition: all var(--transition);
    cursor: pointer;
    position: relative;
}

.answer-radio:checked + .answer-radio-custom {
    border-color: var(--color-success);
    background: var(--color-success);
}

.answer-radio:checked + .answer-radio-custom::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: white;
}

.answer-input {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid transparent;
    border-radius: var(--border-radius-sm);
    font-size: 14px;
    color: var(--color-gray-800);
    background: white;
    transition: all var(--transition);
}

.answer-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.1);
}

.answer-input::placeholder {
    color: var(--color-gray-400);
}

.answer-remove-btn {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: var(--color-gray-400);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all var(--transition);
}

.answer-remove-btn:hover {
    background: var(--color-danger-light);
    color: var(--color-danger);
}

.add-answer-btn {
    padding: 10px 16px;
    border: 1px dashed var(--border-color);
    background: transparent;
    border-radius: var(--border-radius);
    font-size: 14px;
    color: var(--color-gray-600);
    cursor: pointer;
    transition: all var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

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

.question-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 20px;
    margin-bottom: 16px;
    transition: all var(--transition);
    position: relative;
}

.question-item:hover {
    box-shadow: var(--shadow);
    border-color: var(--color-gray-300);
}

.question-item.editing {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.question-item-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.question-item-title {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
}

.drag-handle {
    cursor: grab;
    color: var(--color-gray-400);
    display: flex;
    align-items: center;
    padding: 4px;
    border-radius: var(--border-radius-sm);
    transition: all var(--transition);
}

.drag-handle:hover {
    background: var(--color-gray-100);
    color: var(--color-gray-600);
}

.drag-handle:active {
    cursor: grabbing;
}

.question-number {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary);
}

.question-item-text {
    font-size: 15px;
    color: var(--color-gray-800);
    font-weight: 500;
    margin-bottom: 12px;
    line-height: 1.5;
}

.question-item-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.question-action-btn {
    padding: 6px 12px;
    border: 1px solid var(--border-color);
    background: white;
    border-radius: var(--border-radius-sm);
    font-size: 13px;
    color: var(--color-gray-600);
    cursor: pointer;
    transition: all var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
}

.question-action-btn:hover {
    background: var(--color-gray-50);
    border-color: var(--color-gray-300);
    color: var(--color-gray-800);
}

.question-action-btn.delete {
    color: var(--color-danger);
    border-color: var(--color-danger-light);
}

.question-action-btn.delete:hover {
    background: var(--color-danger-light);
    border-color: var(--color-danger);
}

.question-answers-preview {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.answer-preview {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--color-gray-600);
    padding: 4px 0;
}

.answer-preview.correct {
    color: var(--color-success-dark);
    font-weight: 500;
}

.answer-preview-icon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.answer-preview-icon.correct {
    color: var(--color-success);
}

.answer-preview-icon.incorrect {
    color: var(--color-gray-300);
}

.question-edit-form {
    display: none;
    flex-direction: column;
    gap: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
    margin-top: 16px;
}

.question-item.editing .question-edit-form {
    display: flex;
}

.question-item.editing .question-answers-preview {
    display: none;
}

.question-edit-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
}

.btn-save, .btn-cancel {
    padding: 8px 16px;
    border-radius: var(--border-radius);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    border: none;
}

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

.btn-save:hover {
    background: var(--color-primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.btn-cancel {
    background: var(--color-gray-100);
    color: var(--color-gray-700);
}

.btn-cancel:hover {
    background: var(--color-gray-200);
}

.questions-empty-state {
    text-align: center;
    padding: 64px 24px;
    color: var(--color-gray-400);
}

.questions-empty-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: var(--color-gray-100);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.questions-empty-icon svg {
    width: 40px;
    height: 40px;
    color: var(--color-gray-300);
}

.questions-empty-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-gray-800);
    margin: 0 0 8px 0;
}

.questions-empty-text {
    font-size: 14px;
    color: var(--color-gray-500);
    margin: 0;
}

.sortable-ghost {
    opacity: 0.5;
    background: var(--color-primary-light);
}

.sortable-drag {
    opacity: 0.8;
    box-shadow: var(--shadow-lg);
}

/* Icon styles */
.icon {
    width: 18px;
    height: 18px;
    display: inline-block;
    vertical-align: middle;
}

.icon-sm {
    width: 16px;
    height: 16px;
}

.icon-xs {
    width: 14px;
    height: 14px;
}