/**
 * Sprint 5 Components CSS
 *
 * Styles for:
 * - Breadcrumbs (Task 5.2.3)
 * - Scroll-to-Top button (Task 5.2.2)
 * - Skip-to-Content link (Task 5.4.1)
 * - Focus styles (Task 5.4.2)
 * - ARIA/Accessibility helpers (Task 5.4.3)
 * - 404 page (Task 5.2.1)
 *
 * @package Pollgraphics_Access
 * @version 2.28.67
 */

/* ═══════════════════════════════════════════════
   §0 WIDESCREEN OVERFLOW PROTECTION
   ═══════════════════════════════════════════════ */

/* Prevent horizontal overflow on map pages at any viewport width */
body.pg-map-body,
body:has(#map-container) {
    overflow-x: clip;
}

body.pg-map-body .entry-content,
body:has(#map-container) .entry-content {
    overflow-x: clip;
    box-sizing: border-box;
}

/* ═══════════════════════════════════════════════
   §1 BREADCRUMBS
   ═══════════════════════════════════════════════ */

.pg-breadcrumbs {
    margin: 0 0 var(--pg-space-md, 16px) 0;
    padding: 0;
    font-size: 13px;
    line-height: 1.4;
}

.pg-breadcrumb-list {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 0;
}

.pg-breadcrumb-item {
    display: flex;
    align-items: center;
    gap: 0;
}

.pg-breadcrumb-item a {
    color: var(--pg-color-primary, #667eea);
    text-decoration: none;
    transition: color 0.2s ease;
}

.pg-breadcrumb-item a:hover {
    color: var(--pg-color-primary-dark, #5a67d8);
    text-decoration: underline;
}

.pg-breadcrumb-sep {
    display: inline-block;
    margin: 0 6px;
    color: var(--pg-color-text-muted, #9ca3af);
    font-size: 14px;
    user-select: none;
}

.pg-breadcrumb-current span {
    color: var(--pg-color-text-secondary, #6b7280);
    font-weight: 500;
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
    .pg-breadcrumb-item a {
        color: #818cf8;
    }
    .pg-breadcrumb-item a:hover {
        color: #a5b4fc;
    }
    .pg-breadcrumb-sep {
        color: #6b7280;
    }
    .pg-breadcrumb-current span {
        color: #d1d5db;
    }
}

/* ═══════════════════════════════════════════════
   §2 SCROLL-TO-TOP BUTTON
   ═══════════════════════════════════════════════ */

.pg-scroll-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 1000;
    width: 48px;
    height: 48px;
    min-width: 48px;
    min-height: 48px;
    border: none;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: #ffffff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
    opacity: 0;
    visibility: hidden;
    transform: translateY(16px);
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease, box-shadow 0.2s ease;
}

.pg-scroll-top--visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.pg-scroll-top:hover {
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
    transform: translateY(-2px);
}

.pg-scroll-top:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

.pg-scroll-top:focus-visible {
    outline: 3px solid var(--pg-color-primary, #667eea);
    outline-offset: 3px;
}

.pg-scroll-top svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
    .pg-scroll-top {
        background: linear-gradient(135deg, #818cf8, #a78bfa);
        box-shadow: 0 4px 12px rgba(129, 140, 248, 0.4);
    }
    .pg-scroll-top:hover {
        box-shadow: 0 6px 20px rgba(129, 140, 248, 0.6);
    }
}

/* Mobile: slightly smaller + closer to edge */
@media (max-width: 768px) {
    .pg-scroll-top {
        bottom: 16px;
        right: 16px;
    }
}

/* ═══════════════════════════════════════════════
   §3 SKIP-TO-CONTENT LINK
   ═══════════════════════════════════════════════ */

.pg-skip-link {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100000;
    padding: 12px 24px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: #ffffff;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 0 0 8px 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    transition: top 0.2s ease;
}

.pg-skip-link:focus {
    top: 0;
    outline: none;
}

/* ═══════════════════════════════════════════════
   §4 FOCUS STYLES (Unified)
   ═══════════════════════════════════════════════ */

/* Global focus-visible ring using Design System colors */
*:focus-visible {
    outline: 3px solid var(--pg-color-primary, #667eea);
    outline-offset: 2px;
}

/* Remove default focus ring for mouse users */
*:focus:not(:focus-visible) {
    outline: none;
}

/* Specific interactive elements */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
    outline: 3px solid var(--pg-color-primary, #667eea);
    outline-offset: 2px;
    border-radius: 2px;
}

/* Map controls: keep rounded */
#zoom-in:focus-visible,
#zoom-out:focus-visible {
    outline: 3px solid var(--pg-color-primary, #667eea);
    outline-offset: 3px;
    border-radius: 8px;
}

/* Dark Mode focus ring */
@media (prefers-color-scheme: dark) {
    *:focus-visible {
        outline-color: #818cf8;
    }
    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    select:focus-visible,
    textarea:focus-visible,
    [tabindex]:focus-visible {
        outline-color: #818cf8;
    }
}

/* ═══════════════════════════════════════════════
   §5 ARIA HELPERS
   ═══════════════════════════════════════════════ */

/* Screen-reader only (already exists as .pg-sr-only, reinforced here) */
.pg-sr-only,
.screen-reader-text {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* ═══════════════════════════════════════════════
   §6 404 PAGE
   ═══════════════════════════════════════════════ */

/* Break out of eStar theme container constraints */
body.error404 .site-content,
body.error404 #primary,
body.error404 .content-area,
body.error404 main,
body.error404 article,
body.error404 .entry-content {
    max-width: none !important;
    width: 100% !important;
    padding: 0 !important;
    margin: 0 !important;
}

.pg-404-page {
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
}

.pg-404-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: var(--pg-space-2xl, 48px) var(--pg-space-lg, 24px);
    text-align: center;
    width: 100%;
}

/* Hero */
.pg-404-hero {
    margin-bottom: var(--pg-space-xl, 32px);
}

.pg-404-code {
    font-family: var(--pg-font-heading, 'Source Serif 4', Georgia, serif);
    font-size: 120px;
    font-weight: 700;
    line-height: 1;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--pg-space-sm, 8px);
}

.pg-404-title {
    font-family: var(--pg-font-heading, 'Source Serif 4', Georgia, serif);
    font-size: 28px;
    font-weight: 600;
    color: var(--pg-color-text-primary, #1f2937);
    margin-bottom: var(--pg-space-md, 16px);
}

.pg-404-description {
    font-size: 16px;
    line-height: 1.6;
    color: var(--pg-color-text-secondary, #6b7280);
    max-width: 480px;
    margin: 0 auto;
}

/* Search */
.pg-404-search {
    margin-bottom: var(--pg-space-xl, 32px);
}

.pg-404-search-wrapper {
    display: flex;
    max-width: 480px;
    margin: 0 auto;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--pg-color-border, #e5e7eb);
}

.pg-404-search-input {
    flex: 1;
    padding: 14px 16px;
    border: none;
    font-size: 16px;
    font-family: var(--pg-font-body, 'Source Sans 3', sans-serif);
    background: var(--pg-color-bg-primary, #ffffff);
    color: var(--pg-color-text-primary, #1f2937);
}

.pg-404-search-input::placeholder {
    color: var(--pg-color-text-muted, #9ca3af);
}

.pg-404-search-input:focus {
    outline: none;
}

.pg-404-search-btn {
    padding: 14px 18px;
    border: none;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: #ffffff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.2s ease;
}

.pg-404-search-btn:hover {
    opacity: 0.9;
}

/* Map Cards */
.pg-404-maps {
    margin-bottom: var(--pg-space-xl, 32px);
}

.pg-404-maps-title {
    font-family: var(--pg-font-heading, 'Source Serif 4', Georgia, serif);
    font-size: 20px;
    font-weight: 600;
    color: var(--pg-color-text-primary, #1f2937);
    margin-bottom: var(--pg-space-md, 16px);
}

.pg-404-maps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--pg-space-md, 16px);
}

.pg-404-map-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0;
    background: var(--pg-color-bg-primary, #ffffff);
    border: 1px solid var(--pg-color-border, #e5e7eb);
    border-radius: 12px;
    text-decoration: none;
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.pg-404-map-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.15);
    border-color: var(--pg-color-primary, #667eea);
}

.pg-404-map-icon {
    font-size: 32px;
    margin: var(--pg-space-lg, 24px) 0 var(--pg-space-sm, 8px);
}

.pg-404-map-screenshot {
    width: 100%;
    height: 140px;
    object-fit: cover;
    display: block;
}

.pg-404-map-name {
    font-weight: 600;
    font-size: 15px;
    color: var(--pg-color-text-primary, #1f2937);
    margin-bottom: 4px;
    padding: var(--pg-space-sm, 8px) var(--pg-space-md, 16px) 0;
    text-align: center;
}

.pg-404-map-count {
    font-size: 13px;
    color: var(--pg-color-text-muted, #9ca3af);
    padding: 0 var(--pg-space-md, 16px) var(--pg-space-md, 16px);
}

/* Quick Links */
.pg-404-links {
    margin-bottom: var(--pg-space-xl, 32px);
}

.pg-404-links h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--pg-color-text-primary, #1f2937);
    margin-bottom: var(--pg-space-sm, 8px);
}

.pg-404-links ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--pg-space-sm, 8px) var(--pg-space-md, 16px);
}

.pg-404-links a {
    color: var(--pg-color-primary, #667eea);
    text-decoration: none;
    font-size: 15px;
    transition: color 0.2s ease;
}

.pg-404-links a:hover {
    color: var(--pg-color-primary-dark, #5a67d8);
    text-decoration: underline;
}

/* Back Button */
.pg-404-action {
    margin-top: var(--pg-space-lg, 24px);
}

.pg-404-back-btn {
    display: inline-block;
    padding: 12px 28px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: #ffffff;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    border-radius: 8px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.pg-404-back-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.4);
    color: #ffffff;
}

/* 404 Dark Mode */
@media (prefers-color-scheme: dark) {
    .pg-404-page .pg-404-title,
    .pg-404-page h1.pg-404-title {
        color: #f1f5f9 !important;
    }
    .pg-404-description {
        color: #94a3b8;
    }
    .pg-404-search-wrapper {
        border-color: #334155;
    }
    .pg-404-search-input {
        background: #1e293b;
        color: #f1f5f9;
    }
    .pg-404-search-input::placeholder {
        color: #64748b;
    }
    .pg-404-page .pg-404-maps-title,
    .pg-404-page h2.pg-404-maps-title,
    .pg-404-map-name,
    .pg-404-links h3 {
        color: #f1f5f9 !important;
    }
    .pg-404-map-card {
        background: #1e293b;
        border-color: #334155;
    }
    .pg-404-map-card:hover {
        border-color: #818cf8;
        box-shadow: 0 4px 16px rgba(129, 140, 248, 0.2);
    }
    .pg-404-map-count {
        color: #64748b;
    }
    .pg-404-links a {
        color: #818cf8;
    }
    .pg-404-links a:hover {
        color: #a5b4fc;
    }
    .pg-404-back-btn {
        background: linear-gradient(135deg, #818cf8, #a78bfa);
    }
}

/* 404 Mobile */
@media (max-width: 768px) {
    .pg-404-code {
        font-size: 80px;
    }
    .pg-404-title {
        font-size: 22px;
    }
    .pg-404-maps-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .pg-404-maps-grid {
        grid-template-columns: 1fr;
    }
}