:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #eef2ff;
    --success: #059669;
    --success-light: #d1fae5;
    --warning: #d97706;
    --warning-light: #fef3c7;
    --danger: #dc2626;
    --danger-light: #fee2e2;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --radius: 12px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.08), 0 4px 10px -6px rgba(0, 0, 0, 0.06);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 15px;
    line-height: 1.6;
    color: var(--gray-800);
    background: linear-gradient(160deg, #f8fafc 0%, #eef2ff 45%, #f3f4f6 100%);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

.app {
    max-width: 960px;
    margin: 0 auto;
    padding: 24px 20px 48px;
}

.header {
    margin-bottom: 28px;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 14px;
}

.brand-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--primary) 0%, #818cf8 100%);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.35);
}

.brand-title {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--gray-900);
}

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

.version {
    font-size: 12px;
    color: var(--gray-400);
    background: rgba(255, 255, 255, 0.7);
    padding: 4px 10px;
    border-radius: 999px;
    border: 1px solid var(--gray-200);
}

.main {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.card {
    background: #fff;
    border: 1px solid rgba(255, 255, 255, 0.8);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    padding: 24px;
}

.hero h2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.hero-text {
    color: var(--gray-500);
    margin-bottom: 20px;
}

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

.input-group {
    display: flex;
    gap: 10px;
}

.input-group input[type="text"] {
    flex: 1;
    padding: 14px 16px;
    border: 1px solid var(--gray-200);
    border-radius: 10px;
    font-size: 15px;
    font-family: inherit;
    background: var(--gray-50);
    transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
}

.input-group input[type="text"]:focus {
    outline: none;
    border-color: var(--primary);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    font-family: inherit;
    border: 1px solid transparent;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, transform 0.1s;
    white-space: nowrap;
}

.btn:active:not(:disabled) {
    transform: scale(0.98);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    min-width: 140px;
}

.btn-primary:hover:not(:disabled) {
    background: var(--primary-dark);
}

.btn-outline {
    background: #fff;
    border-color: var(--gray-200);
    color: var(--gray-700);
}

.btn-outline:hover:not(:disabled) {
    background: var(--gray-50);
    border-color: var(--gray-300);
}

.btn-sm {
    padding: 8px 14px;
    font-size: 13px;
}

.btn-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.35);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

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

.options {
    display: flex;
    flex-wrap: wrap;
    gap: 16px 24px;
    align-items: center;
}

.option {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--gray-600);
    cursor: pointer;
    user-select: none;
}

.option input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--primary);
}

.option-inline input[type="number"] {
    width: 72px;
    padding: 6px 10px;
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    font-family: inherit;
    font-size: 14px;
}

.alert {
    margin-top: 16px;
    padding: 12px 16px;
    border-radius: 10px;
    font-size: 14px;
}

.alert-error {
    background: var(--danger-light);
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-warning {
    background: var(--warning-light);
    color: #92400e;
    border: 1px solid #fde68a;
}

.alert ul {
    margin-top: 8px;
    padding-left: 20px;
}

.hidden {
    display: none !important;
}

.progress-header h3 {
    font-size: 16px;
    margin-bottom: 4px;
}

.progress-header p {
    color: var(--gray-500);
    font-size: 14px;
    margin-bottom: 16px;
}

.progress-bar {
    height: 8px;
    background: var(--gray-100);
    border-radius: 999px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--primary), #818cf8);
    border-radius: 999px;
    transition: width 0.4s ease;
    animation: pulse 1.5s ease-in-out infinite;
}

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

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}

.stat-card {
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 18px 20px;
    box-shadow: var(--shadow);
}

.stat-card-highlight {
    background: linear-gradient(135deg, var(--primary) 0%, #818cf8 100%);
    border-color: transparent;
    color: #fff;
}

.stat-card-highlight .stat-label {
    color: rgba(255, 255, 255, 0.85);
}

.stat-label {
    display: block;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-500);
    margin-bottom: 6px;
}

.stat-value {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.02em;
    word-break: break-all;
}

.results-card {
    margin-top: 14px;
}

.results-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.results-toolbar h3 {
    font-size: 17px;
}

.toolbar-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.table-wrap {
    overflow-x: auto;
    border: 1px solid var(--gray-200);
    border-radius: 10px;
}

.results-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.results-table th,
.results-table td {
    padding: 12px 14px;
    text-align: left;
    border-bottom: 1px solid var(--gray-100);
}

.results-table th {
    background: var(--gray-50);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--gray-500);
    font-weight: 600;
}

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

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

.email-cell {
    font-weight: 500;
    color: var(--gray-900);
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.source-cell a {
    color: var(--primary);
    text-decoration: none;
    word-break: break-all;
}

.source-cell a:hover {
    text-decoration: underline;
}

.copy-btn {
    padding: 6px 10px;
    font-size: 12px;
    background: transparent;
    border: 1px solid var(--gray-200);
    border-radius: 6px;
    cursor: pointer;
    color: var(--gray-600);
}

.copy-btn:hover {
    background: var(--gray-50);
}

.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--gray-500);
}

.empty-state svg {
    margin-bottom: 12px;
    color: var(--gray-300);
}

.empty-state .muted {
    font-size: 13px;
    margin-top: 4px;
}

.pages-details {
    margin-top: 14px;
}

.pages-details summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--gray-700);
    user-select: none;
}

.pages-list {
    margin-top: 14px;
    list-style: none;
    max-height: 240px;
    overflow-y: auto;
}

.pages-list li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 8px 0;
    border-bottom: 1px solid var(--gray-100);
    font-size: 13px;
}

.pages-list li:last-child {
    border-bottom: none;
}

.page-url {
    color: var(--gray-600);
    word-break: break-all;
}

.page-status {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    padding: 2px 8px;
    border-radius: 999px;
    flex-shrink: 0;
}

.page-status-ok {
    background: var(--success-light);
    color: var(--success);
}

.page-status-failed,
.page-status-error {
    background: var(--danger-light);
    color: var(--danger);
}

.footer {
    margin-top: 32px;
    text-align: center;
    font-size: 12px;
    color: var(--gray-400);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--gray-900);
    color: #fff;
    padding: 12px 18px;
    border-radius: 10px;
    font-size: 14px;
    box-shadow: var(--shadow-md);
    z-index: 1000;
    animation: slideIn 0.25s ease;
}

@keyframes slideIn {
    from { transform: translateY(12px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

@media (max-width: 720px) {
    .input-group {
        flex-direction: column;
    }

    .btn-primary {
        width: 100%;
    }

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

    .results-toolbar {
        flex-direction: column;
        align-items: flex-start;
    }
}