/* Real Towel - Premium Design System
 * Clean, authoritative, definitive resource aesthetic
 * realtowel.co.uk
 */

/* ----- CSS Custom Properties ----- */
:root {
    /* Colours */
    --color-bg: #FFFFFF;
    --color-bg-alt: #F8F9FA;
    --color-bg-warm: #FAFAFA;
    --color-text: #374151;
    --color-text-muted: #6B7280;
    --color-heading: #111827;
    --color-link: #1A5F7A;
    --color-link-hover: #134B61;
    --color-accent: #1A5F7A;
    --color-accent-light: #E0F2F7;
    --color-border: #E5E7EB;
    --color-border-light: #F3F4F6;

    /* Quick Answer Box */
    --color-qa-bg: #F0F9FF;
    --color-qa-border: #1A5F7A;

    /* Typography - System fonts for speed */
    --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-heading: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;

    /* Layout */
    --max-width-content: 720px;
    --max-width-page: 1140px;
    --sidebar-width: 260px;

    /* Borders */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.08);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 1.0625rem;
    line-height: 1.75;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ----- Typography ----- */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: var(--color-heading);
    font-weight: 600;
    line-height: 1.35;
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.01em;
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-top: 0;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 1.625rem;
    margin-top: var(--spacing-3xl);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
}

h3 {
    font-size: 1.25rem;
    margin-top: var(--spacing-2xl);
}

h4 {
    font-size: 1.1rem;
    margin-top: var(--spacing-xl);
}

p {
    margin-bottom: var(--spacing-lg);
}

a {
    color: var(--color-link);
    text-decoration: none;
    transition: color 0.15s ease;
}

a:hover {
    color: var(--color-link-hover);
}

strong {
    font-weight: 600;
    color: var(--color-heading);
}

/* Glossary auto-links */
a.glossary-link {
    text-decoration: none;
    border-bottom: 1px dotted var(--color-link);
}

a.glossary-link:hover {
    text-decoration: none;
    border-bottom-style: solid;
}

/* ----- Layout ----- */
.container {
    max-width: var(--max-width-page);
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

.content-wrapper {
    max-width: var(--max-width-content);
    margin: 0 auto;
}

.page-layout {
    display: grid;
    grid-template-columns: 1fr var(--sidebar-width);
    gap: var(--spacing-3xl);
    align-items: start;
}

@media (max-width: 900px) {
    .page-layout {
        grid-template-columns: 1fr;
    }

    .container {
        padding: 0 var(--spacing-lg);
    }
}

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

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-text {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--color-heading);
    letter-spacing: -0.02em;
}

.site-logo:hover .logo-text {
    color: var(--color-accent);
}

.site-nav {
    display: flex;
    gap: var(--spacing-xl);
}

.site-nav a {
    color: var(--color-text);
    font-size: 0.9375rem;
    font-weight: 500;
    padding: var(--spacing-xs) 0;
    position: relative;
}

.site-nav a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-accent);
    transform: scaleX(0);
    transition: transform 0.2s ease;
}

.site-nav a:hover {
    color: var(--color-accent);
}

.site-nav a:hover::after {
    transform: scaleX(1);
}

/* Mobile nav toggle */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    color: var(--color-heading);
}

@media (max-width: 768px) {
    .site-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-bg);
        flex-direction: column;
        padding: var(--spacing-lg);
        border-bottom: 1px solid var(--color-border);
        gap: var(--spacing-sm);
        box-shadow: var(--shadow-lg);
    }

    .site-nav.active {
        display: flex;
    }

    .site-nav a::after {
        display: none;
    }

    .nav-toggle {
        display: block;
    }
}

/* ----- Hero Section ----- */
.hero {
    background: linear-gradient(135deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
    padding: var(--spacing-4xl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('/images/hero-bg.png') center/cover no-repeat;
    opacity: 0.15;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-heading) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    max-width: 580px;
    margin: 0 auto var(--spacing-lg);
    line-height: 1.6;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-top: var(--spacing-lg);
}

.hero-features span {
    background: var(--color-bg);
    color: var(--color-accent);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

/* ----- Social Sharing ----- */
.share-buttons {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    margin: var(--spacing-xl) 0;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border-light);
}

.share-buttons span {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--color-bg-alt);
    color: var(--color-text);
    text-decoration: none;
    transition: all 0.2s ease;
    font-size: 0.875rem;
    font-weight: 600;
}

.share-btn:hover {
    background: var(--color-accent);
    color: white;
    transform: scale(1.1);
}

.share-btn.twitter {
    background: #1DA1F2;
    color: white;
}

.share-btn.facebook {
    background: #4267B2;
    color: white;
}

.share-btn.linkedin {
    background: #0077B5;
    color: white;
}

.share-btn.copy {
    background: var(--color-bg-alt);
}

.share-btn.twitter:hover {
    background: #0d8ddb;
}

.share-btn.facebook:hover {
    background: #365899;
}

.share-btn.linkedin:hover {
    background: #005e93;
}

.share-btn.copy:hover {
    background: var(--color-accent);
    color: white;
}

/* Share snippet - highlight and share */
.shareable-snippet {
    position: relative;
    background: linear-gradient(135deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.shareable-snippet::before {
    content: 'Share this';
    position: absolute;
    top: -10px;
    right: var(--spacing-lg);
    background: var(--color-accent);
    color: white;
    font-size: 0.6875rem;
    padding: 2px 10px;
    border-radius: 10px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.shareable-snippet blockquote {
    margin: 0;
    font-size: 1.125rem;
    font-style: italic;
    color: var(--color-heading);
    line-height: 1.6;
}

.snippet-share-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-md);
    font-size: 0.8125rem;
    color: var(--color-accent);
    cursor: pointer;
    background: none;
    border: none;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: background 0.15s;
}

.snippet-share-btn:hover {
    background: var(--color-accent-light);
}

/* ----- Search Box ----- */
.search-container {
    max-width: 600px;
    margin: var(--spacing-xl) auto;
}

.search-box {
    display: flex;
    gap: var(--spacing-sm);
}

.search-box input {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: var(--font-body);
    transition: border-color 0.15s;
}

.search-box input:focus {
    outline: none;
    border-color: var(--color-accent);
}

.search-box button {
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--color-accent);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s;
}

.search-box button:hover {
    background: var(--color-link-hover);
}

.search-results {
    margin-top: var(--spacing-xl);
}

.search-result {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border-light);
}

.search-result:last-child {
    border-bottom: none;
}

.search-result h3 {
    margin: 0 0 var(--spacing-xs) 0;
    font-size: 1.125rem;
}

.search-result h3 a {
    color: var(--color-heading);
}

.search-result h3 a:hover {
    color: var(--color-accent);
}

.search-result p {
    margin: 0;
    font-size: 0.9375rem;
    color: var(--color-text-muted);
}

.search-result .result-url {
    font-size: 0.8125rem;
    color: var(--color-accent);
    margin-top: var(--spacing-xs);
}

@media (max-width: 768px) {
    .hero {
        padding: var(--spacing-3xl) 0;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1.1rem;
    }

    .hero-features span {
        font-size: 0.75rem;
        padding: var(--spacing-xs) var(--spacing-md);
    }
}

/* ----- Breadcrumbs ----- */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.breadcrumb a {
    color: var(--color-text-muted);
}

.breadcrumb a:hover {
    color: var(--color-accent);
}

.breadcrumb-sep {
    color: var(--color-border);
}

/* ----- Quick Answer Box ----- */
.quick-answer {
    background: linear-gradient(135deg, var(--color-qa-bg) 0%, #F5FBFF 100%);
    border-left: 4px solid var(--color-qa-border);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    box-shadow: var(--shadow-sm);
}

.quick-answer p {
    margin: 0;
    font-size: 1.0625rem;
    color: var(--color-heading);
    line-height: 1.65;
}

/* ----- Article Content ----- */
.article-header {
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-xl);
}

.article-meta {
    display: flex;
    gap: var(--spacing-lg);
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-md);
}

.article-content {
    padding-bottom: var(--spacing-3xl);
}

.article-content ul,
.article-content ol {
    margin: var(--spacing-md) 0 var(--spacing-lg);
    padding-left: var(--spacing-xl);
}

.article-content li {
    margin-bottom: var(--spacing-sm);
}

.article-content li::marker {
    color: var(--color-accent);
}

/* Tables */
.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-xl) 0;
    font-size: 0.9375rem;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.article-content th,
.article-content td {
    text-align: left;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.article-content th {
    background: var(--color-bg-alt);
    font-weight: 600;
    color: var(--color-heading);
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.article-content tbody tr:last-child td {
    border-bottom: none;
}

.article-content tbody tr:hover td {
    background: var(--color-bg-alt);
}

/* Code */
.article-content code {
    background: var(--color-bg-alt);
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.875em;
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    color: var(--color-accent);
}

.article-content pre {
    background: var(--color-heading);
    color: #f8f8f2;
    padding: var(--spacing-xl);
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: var(--spacing-xl) 0;
}

.article-content pre code {
    background: none;
    padding: 0;
    color: inherit;
}

/* ----- Sidebar ----- */
.sidebar {
    position: sticky;
    top: 100px;
}

/* Table of Contents */
.toc {
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.toc h3 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
    margin: 0 0 var(--spacing-md) 0;
    border: none;
    padding: 0;
}

.toc ul {
    list-style: none;
}

.toc li {
    margin-bottom: var(--spacing-xs);
}

.toc a {
    display: block;
    font-size: 0.875rem;
    color: var(--color-text);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all 0.15s ease;
}

.toc a:hover {
    color: var(--color-accent);
    background: var(--color-bg);
}

.toc a.active {
    color: var(--color-accent);
    background: var(--color-accent-light);
    font-weight: 500;
}

/* Related Pages */
.related-pages {
    border-top: 1px solid var(--color-border);
    padding-top: var(--spacing-2xl);
    margin-top: var(--spacing-3xl);
}

.related-pages h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
    border: none;
    padding: 0;
    margin-top: 0;
}

.related-pages ul {
    list-style: none;
    display: grid;
    gap: var(--spacing-sm);
}

.related-pages a {
    display: block;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-weight: 500;
    transition: all 0.2s ease;
}

.related-pages a:hover {
    background: var(--color-accent-light);
    color: var(--color-accent);
    transform: translateX(4px);
}

/* ----- Footer ----- */
.site-footer {
    background: var(--color-heading);
    color: rgba(255, 255, 255, 0.7);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    margin-top: var(--spacing-4xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-3xl);
}

.footer-brand {
    max-width: 360px;
}

.footer-logo {
    text-decoration: none;
}

.footer-logo .logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: #FFFFFF;
    letter-spacing: -0.02em;
}

.footer-logo:hover .logo-text {
    color: var(--color-accent-light);
}

.footer-brand p {
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-top: var(--spacing-lg);
    color: rgba(255, 255, 255, 0.6);
}

.footer-links {
    display: flex;
    gap: var(--spacing-3xl);
}

.footer-col h4 {
    color: #fff;
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--spacing-lg);
    font-weight: 600;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.6);
    transition: color 0.15s ease;
}

.footer-links a:hover {
    color: #fff;
}

.footer-bottom {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.4);
}

@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }

    .footer-links {
        gap: var(--spacing-2xl);
    }
}

/* ----- Hub / Index Pages ----- */
.hub-intro {
    text-align: center;
    max-width: 640px;
    margin: 0 auto var(--spacing-3xl);
}

.hub-intro p {
    font-size: 1.125rem;
    color: var(--color-text-muted);
}

.hub-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.hub-card {
    display: block;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    transition: all 0.2s ease;
    text-decoration: none;
}

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

.hub-card h3 {
    font-size: 1.125rem;
    margin: 0 0 var(--spacing-sm) 0;
    border: none;
    padding: 0;
    color: var(--color-heading);
}

.hub-card p {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    margin: 0;
    line-height: 1.6;
}

/* ----- Glossary Index ----- */
.glossary-nav {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-lg);
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
    justify-content: center;
}

.glossary-nav a,
.glossary-nav span {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.875rem;
}

.glossary-nav a {
    background: var(--color-bg);
    color: var(--color-text);
    transition: all 0.15s ease;
    box-shadow: var(--shadow-sm);
}

.glossary-nav a:hover {
    background: var(--color-accent);
    color: white;
}

.glossary-section {
    margin-bottom: var(--spacing-2xl);
}

.glossary-section h2 {
    font-size: 1.75rem;
    color: var(--color-accent);
    border: none;
    padding: 0;
    margin-bottom: var(--spacing-md);
    margin-top: 0;
}

.glossary-list {
    list-style: none;
}

.glossary-list li {
    border-bottom: 1px solid var(--color-border-light);
}

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

.glossary-list a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-sm);
    color: var(--color-text);
    border-radius: var(--radius-sm);
    transition: all 0.15s ease;
}

.glossary-list a:hover {
    background: var(--color-bg-alt);
    color: var(--color-accent);
}

.glossary-list .term-preview {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-left: var(--spacing-lg);
    flex-shrink: 0;
    max-width: 45%;
    text-align: right;
}

/* ----- FAQ Specific ----- */
.faq-answer {
    padding-left: var(--spacing-lg);
    border-left: 2px solid var(--color-border);
    margin-left: var(--spacing-sm);
}

/* ----- Comparison Tables ----- */
.comparison-table {
    overflow-x: auto;
}

.comparison-table table {
    min-width: 500px;
}

.comparison-table th:first-child,
.comparison-table td:first-child {
    font-weight: 600;
    background: var(--color-bg-alt);
    position: sticky;
    left: 0;
}

/* ----- Utility Classes ----- */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

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

.text-center {
    text-align: center;
}

.mt-lg {
    margin-top: var(--spacing-lg);
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}

.mt-xl {
    margin-top: var(--spacing-xl);
}

.mb-xl {
    margin-bottom: var(--spacing-xl);
}

/* ----- Print Styles ----- */
@media print {

    .site-header,
    .site-footer,
    .sidebar,
    .breadcrumb {
        display: none;
    }

    .page-layout {
        display: block;
    }

    body {
        font-size: 11pt;
        line-height: 1.5;
    }

    a {
        color: var(--color-text);
    }

    .quick-answer {
        border: 1px solid #ccc;
        background: #f9f9f9;
    }
}

/* ============================================
   INFOGRAPHIC-STYLE COMPONENTS
   Use these classes in markdown/HTML content
   ============================================ */

/* ----- Stat Callouts ----- */
/* Big numbers with labels - use for key metrics */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.stat-box {
    text-align: center;
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1.1;
    letter-spacing: -0.03em;
}

.stat-label {
    display: block;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ----- Key Facts Box ----- */
/* Highlighted takeaways - use after introductions */
.key-facts {
    background: var(--color-bg-alt);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
}

.key-facts h4,
.key-facts strong:first-child {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
    display: block;
}

.key-facts ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.key-facts li {
    padding: var(--spacing-sm) 0;
    padding-left: var(--spacing-xl);
    position: relative;
    border-bottom: 1px solid var(--color-border-light);
}

.key-facts li:last-child {
    border-bottom: none;
}

.key-facts li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: 700;
}

/* ----- Progress/Rating Bars ----- */
/* Visual ratings - use for GSM, quality scores, etc */
.rating-bar {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin: var(--spacing-sm) 0;
}

.rating-bar-label {
    min-width: 100px;
    font-weight: 500;
    font-size: 0.9375rem;
}

.rating-bar-track {
    flex: 1;
    height: 12px;
    background: var(--color-border-light);
    border-radius: 6px;
    overflow: hidden;
}

.rating-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-accent-light) 0%, var(--color-accent) 100%);
    border-radius: 6px;
    transition: width 0.5s ease;
}

.rating-bar-value {
    min-width: 60px;
    text-align: right;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* GSM Scale visual */
.gsm-scale {
    display: grid;
    gap: var(--spacing-sm);
    margin: var(--spacing-xl) 0;
}

.gsm-level {
    display: grid;
    grid-template-columns: 80px 1fr 100px;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) 0;
}

.gsm-value {
    font-weight: 700;
    font-size: 1rem;
    color: var(--color-heading);
}

.gsm-bar {
    height: 8px;
    background: var(--color-border-light);
    border-radius: 4px;
    overflow: hidden;
}

.gsm-bar span {
    display: block;
    height: 100%;
    background: var(--color-accent);
    border-radius: 4px;
}

.gsm-label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* ----- Pros/Cons Lists ----- */
/* Side-by-side or stacked comparison */
.pros-cons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.pros,
.cons {
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
}

.pros {
    background: #F0FDF4;
    border: 1px solid #BBF7D0;
}

.cons {
    background: #FEF2F2;
    border: 1px solid #FECACA;
}

.pros h4,
.cons h4 {
    margin: 0 0 var(--spacing-md) 0;
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pros h4 {
    color: #166534;
}

.cons h4 {
    color: #991B1B;
}

.pros ul,
.cons ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.pros li,
.cons li {
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-lg);
    position: relative;
    font-size: 0.9375rem;
}

.pros li::before {
    content: '+';
    position: absolute;
    left: 0;
    color: #166534;
    font-weight: 700;
}

.cons li::before {
    content: '−';
    position: absolute;
    left: 2px;
    color: #991B1B;
    font-weight: 700;
}

/* ----- Feature Comparison Grid ----- */
/* Use for X vs Y pages */
.feature-grid {
    margin: var(--spacing-xl) 0;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.feature-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    border-bottom: 1px solid var(--color-border-light);
}

.feature-row:last-child {
    border-bottom: none;
}

.feature-row.header {
    background: var(--color-bg-alt);
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.feature-cell {
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-cell:first-child {
    justify-content: flex-start;
    font-weight: 500;
    background: var(--color-bg-alt);
}

.feature-cell .check {
    color: #166534;
    font-weight: 700;
}

.feature-cell .cross {
    color: #991B1B;
    font-weight: 700;
}

.feature-cell .partial {
    color: #CA8A04;
    font-weight: 700;
}

/* ----- Timeline ----- */
/* For history/culture pages */
.timeline {
    position: relative;
    padding-left: var(--spacing-2xl);
    margin: var(--spacing-xl) 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-border);
}

.timeline-item {
    position: relative;
    padding-bottom: var(--spacing-xl);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: calc(-1 * var(--spacing-2xl) + 4px);
    top: 6px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-accent);
    border: 2px solid var(--color-bg);
    box-shadow: 0 0 0 2px var(--color-accent);
}

.timeline-date {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-xs);
}

.timeline-content h4 {
    margin: 0 0 var(--spacing-xs) 0;
    font-size: 1rem;
}

.timeline-content p {
    margin: 0;
    font-size: 0.9375rem;
    color: var(--color-text-muted);
}

/* ----- Tags / Badges ----- */
/* Colour-coded labels */
.tag {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.tag-material {
    background: #DBEAFE;
    color: #1E40AF;
}

.tag-care {
    background: #D1FAE5;
    color: #065F46;
}

.tag-type {
    background: #FEF3C7;
    color: #92400E;
}

.tag-quality {
    background: #F3E8FF;
    color: #6B21A8;
}

.tag-budget {
    background: #FEE2E2;
    color: #991B1B;
}

.tag-premium {
    background: #111827;
    color: #FFFFFF;
}

/* ----- Quick Reference Card ----- */
/* Compact summary boxes */
.ref-card {
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
}

.ref-card-title {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
}

.ref-card-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-heading);
    margin-bottom: var(--spacing-xs);
}

.ref-card-desc {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    margin: 0;
}

/* ----- Callout Boxes ----- */
/* Highlighted tips, notes, warnings */
.callout {
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin: var(--spacing-xl) 0;
    border-left: 4px solid;
}

.callout-tip {
    background: #F0FDF4;
    border-color: #22C55E;
}

.callout-note {
    background: #EFF6FF;
    border-color: #3B82F6;
}

.callout-warning {
    background: #FFFBEB;
    border-color: #F59E0B;
}

.callout-title {
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: var(--spacing-sm);
}

.callout-tip .callout-title {
    color: #166534;
}

.callout-note .callout-title {
    color: #1E40AF;
}

.callout-warning .callout-title {
    color: #92400E;
}

.callout p {
    margin: 0;
    font-size: 0.9375rem;
}

/* ----- Number List (ordered with big numbers) ----- */
.numbered-steps {
    counter-reset: step-counter;
    list-style: none;
    padding: 0;
    margin: var(--spacing-xl) 0;
}

.numbered-steps li {
    counter-increment: step-counter;
    position: relative;
    padding-left: 60px;
    padding-bottom: var(--spacing-xl);
    min-height: 50px;
}

.numbered-steps li::before {
    content: counter(step-counter);
    position: absolute;
    left: 0;
    top: 0;
    width: 40px;
    height: 40px;
    background: var(--color-accent);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.125rem;
}

/* ----- At a Glance Summary ----- */
.at-a-glance {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-md);
    padding: var(--spacing-xl);
    background: var(--color-bg-alt);
    border-radius: var(--radius-lg);
    margin: var(--spacing-xl) 0;
}

.at-a-glance-item {
    text-align: center;
    padding: var(--spacing-md);
}

.at-a-glance-icon {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.at-a-glance-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.at-a-glance-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-heading);
}