/**
 * CORA Accessibility - Frontend Scanner Styles
 *
 * Complete styles for the public-facing accessibility scanner
 * with tabbed report, expandable categories, and severity filtering.
 */

/* =========================================================================
   CSS Variables
   ========================================================================= */

.cora-frontend-scanner,
.cora-frontend-panel,
.cora-frontend-panel-backdrop {
    --cora-primary: #6366f1;
    --cora-primary-hover: #4f46e5;
    --cora-success: #10b981;
    --cora-warning: #f59e0b;
    --cora-danger: #ef4444;
    --cora-info: #3b82f6;

    --cora-gray-50: #f9fafb;
    --cora-gray-100: #f3f4f6;
    --cora-gray-200: #e5e7eb;
    --cora-gray-300: #d1d5db;
    --cora-gray-400: #9ca3af;
    --cora-gray-500: #6b7280;
    --cora-gray-600: #4b5563;
    --cora-gray-700: #374151;
    --cora-gray-800: #1f2937;
    --cora-gray-900: #111827;

    --cora-radius: 8px;
    --cora-shadow: 0 1px 3px rgba(0,0,0,0.1);
    --cora-shadow-lg: 0 10px 25px -5px rgba(0,0,0,0.1);

    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    box-sizing: border-box;
}

.cora-frontend-scanner *, .cora-frontend-panel * { box-sizing: border-box; }

/* =========================================================================
   Scanner Form
   ========================================================================= */

.cora-frontend-scanner {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 24px;
}

.cora-scanner-form-wrapper {
    background: white;
    border-radius: 12px;
    padding: 32px;
    box-shadow: var(--cora-shadow-lg);
    border: 1px solid var(--cora-gray-200);
}

.cora-scanner-title {
    margin: 0 0 8px;
    font-size: 28px;
    font-weight: 700;
    color: var(--cora-gray-900);
    text-align: center;
}

.cora-scanner-description {
    margin: 0 0 24px;
    font-size: 16px;
    color: var(--cora-gray-600);
    text-align: center;
}

.cora-scanner-input-group {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.cora-scanner-url {
    flex: 1;
    min-width: 200px;
    padding: 14px 16px;
    font-size: 16px;
    border: 2px solid var(--cora-gray-200);
    border-radius: var(--cora-radius);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.cora-scanner-url:focus {
    border-color: var(--cora-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.cora-scanner-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 600;
    color: white;
    background: var(--cora-primary);
    border: none;
    border-radius: var(--cora-radius);
    cursor: pointer;
    transition: background 0.2s;
}

.cora-scanner-button:hover { background: var(--cora-primary-hover); }
.cora-scanner-button:disabled { background: var(--cora-gray-400); cursor: not-allowed; }

.cora-scanner-button-loading { display: inline-flex; align-items: center; gap: 8px; }

.cora-spinner {
    width: 20px;
    height: 20px;
    animation: cora-spin 1s linear infinite;
}

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

.cora-scanner-error {
    margin-top: 16px;
    padding: 12px 16px;
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: var(--cora-radius);
    color: #dc2626;
    font-size: 14px;
}

/* =========================================================================
   Scan History
   ========================================================================= */

.cora-scan-history {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--cora-gray-200);
}

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

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

.cora-history-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    background: white;
    border: 1px solid var(--cora-gray-200);
    border-radius: var(--cora-radius);
    cursor: pointer;
    transition: all 0.2s;
}

.cora-history-item:hover {
    border-color: var(--cora-primary);
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.1);
}

.cora-history-score {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 700;
    flex-shrink: 0;
    border: 2px solid;
}

.cora-history-score.a11y-score-excellent,
.cora-history-score.score-excellent {
    background: #ecfdf5;
    border-color: #059669;
    color: #059669;
}

.cora-history-score.a11y-score-good,
.cora-history-score.score-good {
    background: #eff6ff;
    border-color: #2563eb;
    color: #2563eb;
}

.cora-history-score.a11y-score-fair,
.cora-history-score.score-fair {
    background: #fffbeb;
    border-color: #d97706;
    color: #d97706;
}

.cora-history-score.a11y-score-poor,
.cora-history-score.score-poor {
    background: #fef2f2;
    border-color: #dc2626;
    color: #dc2626;
}

.cora-history-info {
    flex: 1;
    min-width: 0;
}

.cora-history-url {
    font-size: 14px;
    font-weight: 600;
    color: var(--cora-gray-900);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 4px;
}

.cora-history-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 12px;
    color: var(--cora-gray-500);
}

.cora-history-issues {
    padding: 2px 8px;
    background: var(--cora-gray-100);
    border-radius: 10px;
    font-weight: 500;
}

.cora-history-arrow {
    color: var(--cora-gray-400);
    flex-shrink: 0;
}

.cora-history-item:hover .cora-history-arrow {
    color: var(--cora-primary);
}

/* =========================================================================
   Panel (Flyout)
   ========================================================================= */

.cora-frontend-panel-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 999998;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

.cora-frontend-panel-backdrop.open {
    opacity: 1;
    visibility: visible;
}

.cora-frontend-panel {
    position: fixed;
    top: 0;
    right: -55%;
    width: 55%;
    min-width: 500px;
    max-width: 800px;
    height: 100vh;
    background: white;
    z-index: 999999;
    display: flex;
    flex-direction: column;
    transition: right 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: none;
}

.cora-frontend-panel.open {
    right: 0;
    box-shadow: -10px 0 40px rgba(0,0,0,0.15);
}

.cora-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    border-bottom: 1px solid var(--cora-gray-200);
    background: var(--cora-gray-50);
}

.cora-panel-title {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
}

.cora-panel-close {
    background: none;
    border: none;
    font-size: 28px;
    color: var(--cora-gray-400);
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

.cora-panel-close:hover { color: var(--cora-gray-600); }

.cora-panel-body {
    flex: 1;
    overflow-y: auto;
    padding: 0;
}

.cora-panel-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    border-top: 1px solid var(--cora-gray-200);
    background: var(--cora-gray-50);
}

/* =========================================================================
   Buttons
   ========================================================================= */

.cora-btn {
    display: inline-flex;
    align-items: center;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--cora-radius);
    cursor: pointer;
    transition: all 0.2s;
    border: none;
}

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

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

.cora-btn-secondary {
    background: white;
    color: var(--cora-gray-700);
    border: 1px solid var(--cora-gray-300);
}

.cora-btn-secondary:hover { background: var(--cora-gray-100); }

/* =========================================================================
   Report Header
   ========================================================================= */

.cora-report-header {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px;
    background: linear-gradient(135deg, var(--cora-primary) 0%, #8b5cf6 100%);
    color: white;
}

.cora-score-circle {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    font-weight: 700;
    flex-shrink: 0;
}

.cora-score-circle.score-excellent { color: #059669; }
.cora-score-circle.score-good { color: #2563eb; }
.cora-score-circle.score-fair { color: #d97706; }
.cora-score-circle.score-poor { color: #dc2626; }

.cora-report-info { flex: 1; }

.cora-report-url {
    font-size: 16px;
    font-weight: 600;
    word-break: break-all;
    margin-bottom: 6px;
}

.cora-report-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 13px;
    opacity: 0.9;
}

/* =========================================================================
   Tabs
   ========================================================================= */

.cora-report-tabs {
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--cora-gray-200);
    background: var(--cora-gray-50);
}

.cora-report-tab {
    padding: 14px 24px;
    font-size: 14px;
    font-weight: 500;
    color: var(--cora-gray-600);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: all 0.2s;
}

.cora-report-tab:hover {
    color: var(--cora-gray-900);
    background: var(--cora-gray-100);
}

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

.cora-report-tab-content {
    padding: 24px;
}

/* =========================================================================
   Issue Summary Cards
   ========================================================================= */

.cora-issue-summary {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}

.cora-issue-card {
    text-align: center;
    padding: 16px 12px;
    border-radius: var(--cora-radius);
    border: 1px solid var(--cora-gray-200);
}

.cora-issue-card-critical { background: #fef2f2; border-color: #fecaca; }
.cora-issue-card-serious { background: #fff7ed; border-color: #fed7aa; }
.cora-issue-card-moderate { background: #fffbeb; border-color: #fde68a; }
.cora-issue-card-minor { background: #f0f9ff; border-color: #bae6fd; }

.cora-issue-card-number {
    font-size: 28px;
    font-weight: 700;
    display: block;
}

.cora-issue-card-critical .cora-issue-card-number { color: #dc2626; }
.cora-issue-card-serious .cora-issue-card-number { color: #ea580c; }
.cora-issue-card-moderate .cora-issue-card-number { color: #d97706; }
.cora-issue-card-minor .cora-issue-card-number { color: #0284c7; }

.cora-issue-card-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--cora-gray-600);
    margin-top: 4px;
}

/* =========================================================================
   Sections
   ========================================================================= */

.cora-section {
    margin-bottom: 24px;
}

.cora-section-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--cora-gray-900);
    margin-bottom: 8px;
}

.cora-section-desc {
    font-size: 14px;
    color: var(--cora-gray-600);
    margin-bottom: 16px;
}

/* =========================================================================
   Priority Fixes
   ========================================================================= */

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

.cora-priority-fix {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    background: white;
    border: 1px solid var(--cora-gray-200);
    border-radius: var(--cora-radius);
    cursor: pointer;
    transition: all 0.2s;
}

.cora-priority-fix:hover {
    border-color: var(--cora-primary);
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.1);
}

.cora-priority-fix-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.cora-priority-fix-content { flex: 1; }

.cora-priority-fix-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--cora-gray-900);
    margin-bottom: 4px;
}

.cora-priority-fix-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    color: var(--cora-gray-500);
}

.cora-priority-fix-impact {
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
}

.cora-priority-fix-arrow {
    color: var(--cora-gray-400);
}

/* =========================================================================
   What We Tested
   ========================================================================= */

.cora-tested-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.cora-tested-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: var(--cora-gray-50);
    border-radius: var(--cora-radius);
    font-size: 13px;
    color: var(--cora-gray-700);
}

.cora-tested-item svg {
    color: var(--cora-gray-500);
    flex-shrink: 0;
}

/* =========================================================================
   Severity Filters
   ========================================================================= */

.cora-severity-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--cora-gray-200);
}

.cora-severity-chip,
.cora-frontend-panel .severity-chip {
    padding: 6px 14px;
    font-size: 12px;
    font-weight: 500;
    color: var(--cora-gray-600);
    background: var(--cora-gray-100);
    border: none !important;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.2s;
    outline: none;
}

.cora-severity-chip:hover,
.cora-frontend-panel .severity-chip:hover {
    background: var(--cora-gray-200);
}

.cora-severity-chip.active,
.cora-frontend-panel .severity-chip.active {
    background: var(--cora-primary);
    color: white;
    border: none !important;
}

.cora-severity-chip.cora-severity-critical.active { background: #dc2626; }
.cora-severity-chip.cora-severity-serious.active { background: #ea580c; }
.cora-severity-chip.cora-severity-moderate.active { background: #d97706; }
.cora-severity-chip.cora-severity-minor.active { background: #0284c7; }

/* =========================================================================
   Categories (Accordion)
   ========================================================================= */

.cora-categories {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.cora-category {
    border: 1px solid var(--cora-gray-200);
    border-radius: var(--cora-radius);
    overflow: hidden;
    background: white;
}

.cora-category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    background: var(--cora-gray-50);
    cursor: pointer;
    transition: background 0.2s;
}

.cora-category-header:hover {
    background: var(--cora-gray-100);
}

.cora-category-info {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.cora-category-icon {
    display: flex;
    align-items: center;
}

.cora-category-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--cora-gray-900);
}

.cora-category-impact {
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    color: white;
}

.cora-category-count {
    font-size: 12px;
    color: var(--cora-gray-500);
}

.cora-toggle-icon {
    color: var(--cora-gray-400);
    transition: transform 0.2s;
    font-size: 12px;
}

.cora-toggle-icon.rotated {
    transform: rotate(180deg);
}

.cora-category-content {
    display: none;
    padding: 16px;
    border-top: 1px solid var(--cora-gray-200);
}

.cora-category-description {
    font-size: 14px;
    color: var(--cora-gray-600);
    line-height: 1.6;
    margin-bottom: 12px;
}

.cora-learn-more {
    display: inline-block;
    font-size: 13px;
    color: var(--cora-primary);
    text-decoration: none;
    margin-bottom: 16px;
}

.cora-learn-more:hover {
    text-decoration: underline;
}

/* =========================================================================
   Elements List
   ========================================================================= */

.cora-elements-list {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--cora-gray-100);
}

.cora-elements-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--cora-gray-700);
    margin: 0 0 12px;
}

.cora-element-item {
    display: flex;
    gap: 12px;
    padding: 12px;
    background: var(--cora-gray-50);
    border: 1px solid var(--cora-gray-200);
    border-radius: 6px;
    margin-bottom: 8px;
}

.cora-element-item:last-child {
    margin-bottom: 0;
}

.cora-element-index {
    width: 24px;
    height: 24px;
    background: var(--cora-gray-200);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 600;
    color: var(--cora-gray-600);
    flex-shrink: 0;
}

.cora-element-details {
    flex: 1;
    min-width: 0;
}

.cora-element-code {
    display: block;
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    font-size: 12px;
    color: var(--cora-gray-700);
    background: white;
    padding: 8px 10px;
    border-radius: 4px;
    border: 1px solid var(--cora-gray-200);
    overflow-x: auto;
    word-break: break-all;
    white-space: pre-wrap;
}

.cora-element-selector {
    font-size: 11px;
    color: var(--cora-gray-500);
    margin-top: 6px;
    font-family: monospace;
}

.cora-element-failure {
    font-size: 12px;
    color: #dc2626;
    background: #fef2f2;
    padding: 8px 10px;
    border-radius: 4px;
    margin-top: 8px;
}

.cora-elements-more {
    font-size: 13px;
    color: var(--cora-gray-500);
    padding: 8px 0;
}

/* =========================================================================
   Success State
   ========================================================================= */

.cora-success-state {
    text-align: center;
    padding: 48px 24px;
}

.cora-success-icon {
    width: 64px;
    height: 64px;
    background: #d1fae5;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}

.cora-success-icon svg {
    width: 32px;
    height: 32px;
    color: #059669;
}

.cora-success-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--cora-gray-900);
    margin: 0 0 8px;
}

.cora-success-message {
    font-size: 14px;
    color: var(--cora-gray-600);
    margin: 0;
}

/* =========================================================================
   Empty State
   ========================================================================= */

.cora-empty-state {
    text-align: center;
    padding: 32px;
    color: var(--cora-gray-500);
}

/* =========================================================================
   Score Message in Header
   ========================================================================= */

.cora-score-message {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
}

/* =========================================================================
   Category Scores (Progress Bars)
   ========================================================================= */

.cora-category-scores {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.cora-score-row {
    display: flex;
    align-items: center;
    gap: 12px;
}

.cora-score-row-icon {
    width: 24px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cora-score-row-label {
    width: 140px;
    font-size: 14px;
    font-weight: 500;
    color: var(--cora-gray-700);
    flex-shrink: 0;
}

.cora-score-row-bar {
    flex: 1;
    height: 8px;
    background: var(--cora-gray-200);
    border-radius: 4px;
    overflow: hidden;
}

.cora-score-row-progress {
    height: 100%;
    border-radius: 4px;
    transition: width 0.5s ease-out;
}

.cora-score-row-value {
    width: 45px;
    text-align: right;
    font-size: 14px;
    font-weight: 600;
    flex-shrink: 0;
}

/* =========================================================================
   WCAG Tags
   ========================================================================= */

.cora-wcag-tag {
    padding: 2px 6px;
    background: #dbeafe;
    color: #1e40af;
    font-size: 10px;
    font-weight: 600;
    border-radius: 3px;
}

/* =========================================================================
   Element Visual Layout (Screenshots + Details)
   ========================================================================= */

.cora-element-visual-layout {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    width: 100%;
}

.cora-element-screenshot {
    flex-shrink: 0;
}

.cora-element-screenshot img {
    max-width: 150px;
    max-height: 100px;
    border: 1px solid var(--cora-gray-300);
    border-radius: 4px;
    display: block;
}

/* =========================================================================
   Color Swatches (for contrast issues)
   ========================================================================= */

.cora-color-swatches {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 12px;
}

.cora-color-swatch {
    display: flex;
    align-items: center;
    gap: 8px;
}

.cora-swatch {
    width: 28px;
    height: 28px;
    border-radius: 4px;
    border: 2px solid var(--cora-gray-300);
    flex-shrink: 0;
}

.cora-swatch-info {
    font-size: 11px;
}

.cora-swatch-label {
    font-weight: 600;
    color: var(--cora-gray-600);
    margin-bottom: 2px;
}

.cora-swatch-value {
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    font-size: 10px;
    color: var(--cora-gray-500);
}

.cora-font-info {
    font-size: 11px;
    color: var(--cora-gray-500);
}

.cora-font-label {
    font-weight: 600;
}

/* =========================================================================
   Size Info (for target size issues)
   ========================================================================= */

.cora-size-info {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 12px;
    color: var(--cora-gray-600);
    margin-bottom: 10px;
}

.cora-size-warning {
    color: #b91c1c;
    font-size: 11px;
}

/* =========================================================================
   Responsive
   ========================================================================= */

@media (max-width: 1200px) {
    .cora-frontend-panel {
        width: 65%;
        right: -65%;
    }
}

@media (max-width: 900px) {
    .cora-frontend-panel {
        width: 85%;
        right: -85%;
    }

    .cora-issue-summary {
        grid-template-columns: repeat(2, 1fr);
    }

    .cora-tested-list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .cora-frontend-scanner {
        padding: 20px 16px;
    }

    .cora-scanner-form-wrapper {
        padding: 24px 20px;
    }

    .cora-scanner-title {
        font-size: 22px;
    }

    .cora-scanner-input-group {
        flex-direction: column;
    }

    .cora-frontend-panel {
        width: 100%;
        right: -100%;
        min-width: unset;
    }

    .cora-report-header {
        flex-direction: column;
        text-align: center;
    }

    .cora-report-meta {
        justify-content: center;
    }

    .cora-report-tabs {
        overflow-x: auto;
    }

    .cora-severity-filters {
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 12px;
    }

    .cora-severity-chip {
        flex-shrink: 0;
    }
}