/* ==============================================
   GUIDES — Documentation-style Layout
   Modern 2-column layout with sticky left TOC.
   Inspired by Stripe/Vercel/Tailwind docs best practices.
   ============================================== */

/* Reading Progress Bar */
.guide-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    z-index: 9999;
    background: transparent;
    pointer-events: none;
}

.guide-progress__bar {
    height: 100%;
    width: 0;
    background: var(--color-accent);
    transition: width 0.15s ease-out;
}

/* Layout: 2-column documentation style */
/* Container aligns article with header */
.guide-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

.guide-layout {
    display: grid;
    grid-template-columns: 260px 1fr 300px;
    gap: 56px;
    position: relative;
}

@media (max-width: 1200px) {
    .guide-layout {
        grid-template-columns: 240px 1fr;
        gap: 40px;
    }
    .guide-sidebar {
        display: none;
    }
}

@media (max-width: 768px) {
    .guide-layout {
        grid-template-columns: 1fr;
        gap: 0;
    }
}

/* TOC — Sticky Left Rail with Scroll Indicator */
.guide-toc {
    position: sticky;
    top: 80px;
    max-height: calc(100vh - 100px);
    overflow-y: auto;
    padding: 0 0 0 8px;
    margin: 0;
    align-self: start;
    position: relative;
}

/* Vertical scroll progress indicator */
.guide-toc::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 2px;
    height: 100%;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 2px;
}

[data-theme="clear-mode"] .guide-toc::before {
    background: rgba(0, 0, 0, 0.08);
}

.guide-toc::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 2px;
    height: var(--toc-scroll-progress, 0%);
    background: var(--color-accent);
    border-radius: 2px;
    transition: height 0.15s ease-out;
}

/* Hide default scrollbar, use custom indicator */
.guide-toc::-webkit-scrollbar {
    width: 0;
    display: none;
}

.guide-toc__title {
    font-weight: 600;
    font-size: 0.75rem;
    color: var(--color-muted);
    margin: 0 0 16px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 0 12px;
}

.guide-toc__list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.guide-toc__list li {
    margin: 0;
}

.guide-toc__list a {
    display: block;
    color: var(--color-muted);
    text-decoration: none;
    font-size: 0.875rem;
    line-height: 1.6;
    padding: 7px 16px 7px 12px;
    border-left: 3px solid transparent;
    transition: all 0.2s ease;
    position: relative;
}

.guide-toc__list a:hover {
    color: var(--color-text);
    background: rgba(255, 255, 255, 0.04);
    border-left-color: rgba(var(--color-accent-rgb), 0.3);
}

[data-theme="clear-mode"] .guide-toc__list a:hover {
    background: rgba(0, 0, 0, 0.04);
}

/* Active section highlight (scroll spy) */
.guide-toc__list a.active {
    color: var(--color-accent);
    border-left-color: var(--color-accent);
    background: rgba(var(--color-accent-rgb), 0.1);
    font-weight: 600;
}

/* Mobile: Collapsible TOC at top */
@media (max-width: 768px) {
    .guide-toc {
        position: relative;
        top: 0;
        max-height: none;
        overflow: visible;
        margin: 20px 0 32px;
        background: rgba(255, 255, 255, 0.03);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-md);
        padding: 16px;
    }
    
    .guide-toc::before,
    .guide-toc::after {
        display: none;
    }
    
    [data-theme="clear-mode"] .guide-toc {
        background: rgba(0, 0, 0, 0.02);
    }
    
    .guide-toc__title {
        padding: 0;
        margin-bottom: 12px;
    }
    
    .guide-toc__list a {
        padding: 6px 0 6px 12px;
        border-left: 3px solid transparent;
    }
    
    .guide-toc__list a.active {
        border-left-color: var(--color-accent);
    }
}

/* ============================================== 
   GUIDE HEADER COMPONENTS
   ============================================== */

/* Breadcrumbs Navigation */
.breadcrumbs {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 16px;
    font-size: 0.875rem;
}

.breadcrumbs a {
    color: var(--color-muted);
    text-decoration: none;
    transition: color 0.2s;
}

.breadcrumbs a:hover {
    color: var(--color-accent);
    text-decoration: underline;
}

.breadcrumbs .sep {
    color: var(--color-border);
    user-select: none;
}

.breadcrumbs [aria-current="page"] {
    color: var(--color-text);
    font-weight: 500;
}

/* Guide Category Badge */
.guide-category {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(var(--color-accent-rgb), 0.1);
    color: var(--color-accent);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 12px;
}

[data-theme="clear-mode"] .guide-category {
    background: rgba(var(--color-accent-rgb), 0.12);
}

/* Guide Header H1 */
.guide-header h1 {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin: 0 0 16px;
    color: var(--color-text);
}

@media (max-width: 768px) {
    .guide-header h1 {
        font-size: 2rem;
    }
}

/* Guide Meta (date) */
.guide-meta {
    font-size: 0.875rem;
    color: var(--color-muted);
    margin: 0 0 16px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.guide-meta::before {
    content: '📅';
    font-size: 1rem;
}

/* Guide Lead (excerpt) */
.guide-lead {
    font-size: 1.15rem;
    line-height: 1.6;
    color: var(--color-text);
    margin: 0;
    opacity: 0.9;
}

[data-theme="clear-mode"] .guide-lead {
    opacity: 0.85;
}

/* ============================================== 
   GUIDE CONTENT COMPONENTS
   ============================================== */

/* Main Content Area */
.guide-main {
    min-width: 0;
}

/* H2 Headings */
.guide-main h2 {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-text);
    margin: 48px 0 20px;
    padding-top: 8px;
    border-top: 1px solid var(--color-border);
}

.guide-main h2:first-child {
    margin-top: 0;
    border-top: none;
}

@media (max-width: 768px) {
    .guide-main h2 {
        font-size: 1.5rem;
        margin: 36px 0 16px;
    }
}

/* H3 Headings */
.guide-main h3 {
    font-size: 1.35rem;
    font-weight: 600;
    line-height: 1.4;
    color: var(--color-text);
    margin: 32px 0 16px;
}

/* Paragraphs */
.guide-main p {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text);
    margin: 0 0 20px;
}

[data-theme="clear-mode"] .guide-main p {
    color: rgba(0, 0, 0, 0.85);
}

/* Lists */
.guide-main ul,
.guide-main ol {
    margin: 0 0 20px;
    padding-left: 24px;
}

.guide-main li {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text);
    margin-bottom: 8px;
}

[data-theme="clear-mode"] .guide-main li {
    color: rgba(0, 0, 0, 0.85);
}

/* Strong/Bold */
.guide-main strong {
    font-weight: 600;
    color: var(--color-text);
}

/* Links */
.guide-main a {
    color: var(--color-accent);
    text-decoration: underline;
    text-decoration-color: rgba(var(--color-accent-rgb), 0.3);
    transition: all 0.2s;
}

.guide-main a:hover {
    text-decoration-color: var(--color-accent);
}

/* Mission Statement / Definition Hero */
.guide-mission {
    background: linear-gradient(135deg, rgba(var(--color-accent-rgb), 0.08) 0%, rgba(var(--color-accent-rgb), 0.02) 100%);
    border: 1px solid rgba(var(--color-accent-rgb), 0.15);
    border-radius: var(--radius-lg);
    padding: 32px 36px;
    margin: 32px 0 40px;
    position: relative;
    overflow: hidden;
}

.guide-mission::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--color-accent), rgba(var(--color-accent-rgb), 0.4));
}

.guide-mission h2 {
    border: none !important;
    padding-left: 0 !important;
    margin-top: 0;
    font-size: 1.4rem;
    color: var(--color-text);
}

.guide-mission h2::before {
    display: none !important;
}

.guide-mission p {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--color-text);
    margin-bottom: 20px;
}

.guide-mission p:last-of-type {
    margin-bottom: 0;
}

.guide-mission strong {
    color: var(--color-accent);
    font-weight: 600;
}

.guide-mission .guide-mission__cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 20px;
    padding: 12px 24px;
    background: var(--color-accent);
    color: #fff;
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.2s;
}

.guide-mission .guide-mission__cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(var(--color-accent-rgb), 0.3);
}

/* Guide Video Embed */
.guide-video {
    margin: 30px 0;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.guide-video iframe {
    width: 100%;
    aspect-ratio: 16 / 9;
    border: 0;
    display: block;
}

/* Guide Callout */
.guide-callout {
    border-radius: var(--radius-md);
    padding: 16px 20px;
    margin: 24px 0;
    border-left: 4px solid var(--color-accent);
    background: rgba(var(--color-accent-rgb), 0.06);
}

.guide-callout--tip {
    border-left-color: #10b981;
    background: rgba(16, 185, 129, 0.06);
}

.guide-callout--warning {
    border-left-color: #f59e0b;
    background: rgba(245, 158, 11, 0.06);
}

.guide-callout--info {
    border-left-color: #3b82f6;
    background: rgba(59, 130, 246, 0.06);
}

.guide-callout p {
    margin: 0;
    font-size: 0.98rem;
    line-height: 1.6;
}

.guide-callout p + p {
    margin-top: 8px;
}

.guide-callout strong:first-child {
    display: block;
    margin-bottom: 4px;
    font-size: 0.88rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

/* Guide Stat Card */
.guide-stat-card {
    display: flex;
    align-items: center;
    gap: 16px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 18px 22px;
    margin: 20px 0;
}

[data-theme="clear-mode"] .guide-stat-card {
    background: rgba(0, 0, 0, 0.02);
}

.guide-stat-card__number {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--color-accent);
    line-height: 1;
    flex: 0 0 auto;
}

.guide-stat-card__label {
    font-size: 0.95rem;
    color: var(--color-muted);
    line-height: 1.4;
}

/* Guide Step (HowTo visual) */
.guide-steps {
    counter-reset: guide-step;
    margin: 28px 0;
}

.guide-step {
    display: flex;
    gap: 18px;
    margin-bottom: 24px;
    counter-increment: guide-step;
}

.guide-step::before {
    content: counter(guide-step);
    flex: 0 0 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(var(--color-accent-rgb), 0.12);
    border: 2px solid var(--color-accent);
    color: var(--color-accent);
    font-weight: 800;
    font-size: 1.1rem;
}

.guide-step__content h3 {
    margin: 0 0 6px;
    font-size: 1.15rem;
    color: var(--color-text);
}

.guide-step__content p {
    margin: 0;
    font-size: 0.98rem;
    color: var(--color-muted);
    line-height: 1.6;
}

/* Tables - Universal styling */
.guide-main table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
    margin: 28px 0;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

[data-theme="clear-mode"] .guide-main table {
    background: rgba(0, 0, 0, 0.02);
}

.guide-main th {
    background: rgba(var(--color-accent-rgb), 0.12);
    color: var(--color-text);
    font-weight: 700;
    text-align: left;
    padding: 14px 16px;
    border-bottom: 2px solid var(--color-accent);
}

[data-theme="clear-mode"] .guide-main th {
    background: rgba(var(--color-accent-rgb), 0.15);
}

.guide-main td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text);
}

.guide-main tr:last-child td {
    border-bottom: none;
}

.guide-main tr:hover td {
    background: rgba(255, 255, 255, 0.04);
}

[data-theme="clear-mode"] .guide-main tr:hover td {
    background: rgba(0, 0, 0, 0.04);
}

/* Table wrapper for horizontal scroll */
.guide-main .table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 28px 0;
}

/* Legacy class support */
.guide-comparison {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 28px 0;
}

/* Guide Image variants */
.guide-image {
    margin: 28px 0;
    text-align: center;
}

.guide-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.guide-image figcaption {
    margin-top: 10px;
    font-size: 0.9rem;
    color: var(--color-muted);
    font-style: italic;
}

.guide-image--float-left {
    float: left;
    max-width: 42%;
    margin: 8px 24px 18px 0;
    text-align: left;
}

.guide-image--float-right {
    float: right;
    max-width: 42%;
    margin: 8px 0 18px 24px;
}

.guide-image--centered {
    max-width: 76%;
    margin: 24px auto 32px;
}

.guide-image--wide {
    max-width: 100%;
    margin: 36px 0;
}

@media (max-width: 768px) {
    .guide-image--float-left,
    .guide-image--float-right {
        float: none;
        max-width: 100%;
        margin: 20px 0;
    }
}

/* FAQ Items — Guide variant */
.guide-main .faq-item,
.guide-main details.faq-item {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: 10px;
    overflow: hidden;
}

.guide-main .faq-item summary {
    padding: 14px 18px;
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    color: var(--color-text);
    background: rgba(255, 255, 255, 0.03);
    transition: background 0.2s;
    list-style: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

.guide-main .faq-item summary::-webkit-details-marker {
    display: none;
}

.guide-main .faq-item summary::before {
    content: "+";
    flex: 0 0 auto;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-accent);
    transition: transform 0.2s;
}

.guide-main .faq-item[open] summary::before {
    content: "−";
}

.guide-main .faq-item summary:hover {
    background: rgba(var(--color-accent-rgb), 0.06);
}

.guide-main .faq-item > p,
.guide-main .faq-item > div {
    padding: 0 18px 14px;
    font-size: 0.98rem;
    color: var(--color-muted);
    line-height: 1.6;
}

[data-theme="clear-mode"] .guide-main .faq-item summary {
    background: rgba(0, 0, 0, 0.02);
}

/* Product Recommendation (Amazon affiliate) */
.product-recommendation {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(var(--color-accent-rgb), 0.2);
    background: rgba(var(--color-accent-rgb), 0.04);
    margin: 18px 0;
    flex-wrap: wrap;
}

.product-recommendation strong {
    color: var(--color-text);
    font-size: 0.88rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.product-recommendation a {
    color: var(--color-accent);
    font-weight: 600;
}

/* ============================================== 
   SIDEBAR COMPONENTS
   ============================================== */

.guide-sidebar .sidebar-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 20px;
    margin-bottom: 20px;
}

[data-theme="clear-mode"] .guide-sidebar .sidebar-card {
    background: rgba(0, 0, 0, 0.03);
}

.guide-sidebar .sidebar-card h4 {
    color: var(--color-text);
    font-size: 1rem;
    font-weight: 700;
    margin: 0 0 12px;
}

.guide-sidebar .sidebar-card p {
    font-size: 0.92rem;
    color: var(--color-muted);
    line-height: 1.6;
    margin: 0 0 12px;
}

.guide-sidebar .check-list {
    list-style: none;
    padding: 0;
    margin: 0 0 16px;
}

.guide-sidebar .check-list li {
    padding: 5px 0 5px 24px;
    position: relative;
    font-size: 0.92rem;
    color: var(--color-muted);
    line-height: 1.5;
}

.guide-sidebar .check-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: 700;
    font-size: 1.1rem;
}

.guide-sidebar .city-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.guide-sidebar .city-list li {
    padding: 4px 0;
}

.guide-sidebar .city-list a {
    color: var(--color-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
    display: block;
    padding: 2px 0;
}

.guide-sidebar .city-list a:hover {
    color: var(--color-accent);
    padding-left: 4px;
}

/* ============================================== 
   CLUSTER GUIDES NAVIGATION
   ============================================== */

/* Cluster navigation container */
.cluster-guides {
    margin: 48px 0;
    padding: 32px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

[data-theme="clear-mode"] .cluster-guides {
    background: rgba(0, 0, 0, 0.03);
}

.cluster-guides h2,
.cluster-guides h3 {
    margin-top: 0;
    border: none !important;
    padding: 0 !important;
}

.cluster-guides__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
    margin-top: 20px;
}

@media (max-width: 768px) {
    .cluster-guides__grid {
        grid-template-columns: 1fr;
    }
}

.cluster-guides__card {
    padding: 18px 20px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all 0.2s;
    text-decoration: none;
    display: block;
}

[data-theme="clear-mode"] .cluster-guides__card {
    background: rgba(0, 0, 0, 0.04);
}

.cluster-guides__card:hover {
    border-color: var(--color-accent);
    background: rgba(var(--color-accent-rgb), 0.08);
    transform: translateY(-2px);
}

.cluster-guides__card h4 {
    margin: 0 0 8px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
}

.cluster-guides__card p {
    margin: 0;
    font-size: 0.875rem;
    color: var(--color-muted);
    line-height: 1.5;
}

/* CTA Block */
.guide-cta-block {
    text-align: center;
    padding: 40px 32px;
    margin: 48px 0;
    background: linear-gradient(135deg, rgba(var(--color-accent-rgb), 0.08) 0%, rgba(var(--color-accent-rgb), 0.03) 100%);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(var(--color-accent-rgb), 0.2);
}

.guide-cta-block h2 {
    border: none !important;
    padding: 0 !important;
    margin-top: 0;
}

.guide-btn-group {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 20px;
}

/* Responsive adjustments */
@media (max-width: 640px) {
    .guide-stat-card {
        flex-direction: column;
        text-align: center;
    }

    .guide-step {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .guide-step::before {
        flex: 0 0 36px;
        height: 36px;
        font-size: 0.95rem;
    }
}