/* ==========================================================================
   THE WORSHIPFUL COMPANY OF WOOLMEN - DESIGN SYSTEM & MASTER STYLESHEET
   ========================================================================== */

/* --- Google Fonts Import --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Playfair+Display:ital,wght@0,600;0,700;1,400&display=swap');

/* --- Custom Properties / Design Tokens --- */
:root {
    --primary-color: #0A3D62;      /* Deep Navy */
    --secondary-color: #3C6382;    /* Slate Blue */
    --accent-color: #1E90FF;       /* Dodger Blue */
    --accent-light: #EBF5FF;       /* Very light blue */
    
    --bg-base: #F5F6FA;            /* Light grey/blue background */
    --bg-surface: #FFFFFF;         /* White container background */
    --bg-surface-alt: #EDF1F7;     /* Light grey container background */
    
    --text-primary: #2F3640;       /* Charcoal */
    --text-secondary: #7F8FA6;     /* Slate grey */
    --text-light: #FFFFFF;         /* Pure White */
    
    --border-color: #DCDDE1;       /* Light border */
    --border-focus: #1E90FF;       /* Accent blue border */
    
    --shadow-sm: 0 2px 4px rgba(10, 61, 98, 0.05);
    --shadow-md: 0 4px 12px rgba(10, 61, 98, 0.08);
    --shadow-lg: 0 10px 25px rgba(10, 61, 98, 0.12);
    
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-serif: 'Playfair Display', Georgia, serif;
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    
    --header-height: 80px;
}

/* --- Dark Theme Variables --- */
[data-theme="dark"] {
    --primary-color: #0A3D62;      /* Keep primary but lighter background */
    --secondary-color: #7091B0;
    --accent-color: #1E90FF;
    --accent-light: #16243D;
    
    --bg-base: #0F172A;            /* Dark slate */
    --bg-surface: #1E293B;         /* Slightly lighter slate */
    --bg-surface-alt: #334155;
    
    --text-primary: #F1F5F9;       /* Off-white */
    --text-secondary: #94A3B8;     /* Light slate grey */
    
    --border-color: #334155;
    --border-focus: #1E90FF;
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.4);
}

/* --- Base Elements --- */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-base);
    color: var(--text-primary);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* --- Typography --- */
h1, h2, h3, h4 {
    font-family: var(--font-serif);
    color: var(--primary-color);
    line-height: 1.3;
    font-weight: 700;
}

[data-theme="dark"] h1, 
[data-theme="dark"] h2, 
[data-theme="dark"] h3, 
[data-theme="dark"] h4 {
    color: #38BDF8; /* Sky blue in dark mode for better visibility */
}

h1 {
    font-size: 2.25rem;
    margin-bottom: 1.5rem;
}

h2 {
    font-size: 1.75rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    position: relative;
    padding-bottom: 0.5rem;
}

h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background-color: var(--accent-color);
    border-radius: 2px;
}

h3 {
    font-size: 1.35rem;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

p {
    margin-bottom: 1.25rem;
    font-size: 1.05rem;
    font-weight: 400;
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

/* --- Layout & Grid --- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.main-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    padding: 2rem 0;
}

@media (min-width: 1024px) {
    .main-layout {
        grid-template-columns: 240px 1fr 280px;
    }
}

/* --- Header & Navigation --- */
header {
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: var(--header-height);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    font-size: 2rem;
    color: var(--primary-color);
}

[data-theme="dark"] .logo-icon {
    color: #38BDF8;
}

.logo-text {
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: 1.25rem;
    line-height: 1.1;
    color: var(--primary-color);
}

[data-theme="dark"] .logo-text {
    color: var(--text-primary);
}

.logo-sub {
    font-size: 0.7rem;
    font-family: var(--font-sans);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
}

/* Nav Menu */
nav.nav-menu {
    display: none;
}

@media (min-width: 768px) {
    nav.nav-menu {
        display: flex;
        gap: 1.5rem;
        align-items: center;
    }
}

.nav-link {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 0.25rem;
    position: relative;
}

.nav-link:hover {
    color: var(--accent-color);
    text-decoration: none;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: width var(--transition-fast);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link.active {
    color: var(--accent-color);
}

/* Theme Toggle Button */
.btn-toggle-theme {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--text-primary);
    transition: background-color var(--transition-fast);
}

.btn-toggle-theme:hover {
    background-color: var(--bg-base);
}

/* Mobile Menu Button */
.btn-menu-toggle {
    display: block;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

@media (min-width: 768px) {
    .btn-menu-toggle {
        display: none;
    }
}

.btn-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    margin: 5px 0;
    transition: var(--transition-fast);
}

/* Mobile Nav Overlay */
.mobile-nav {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background-color: var(--bg-surface);
    z-index: 999;
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    border-top: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
}

.mobile-nav.open {
    display: flex;
}

.mobile-nav-link {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* --- Hero Section --- */
.hero {
    background: linear-gradient(135deg, #0A3D62 0%, #1E3F66 50%, #3C6382 100%);
    color: var(--text-light);
    padding: 5rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 0);
    background-size: 24px 24px;
    pointer-events: none;
}

.hero h1 {
    color: var(--text-light);
    font-size: 3rem;
    max-width: 800px;
    margin: 0 auto 1.5rem;
    line-height: 1.2;
}

.hero p {
    font-size: 1.25rem;
    max-width: 600px;
    margin: 0 auto 2.5rem;
    color: #D1D5DB;
}

.hero-ctas {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-family: var(--font-sans);
    transition: all var(--transition-fast);
}

.btn-primary {
    background-color: var(--accent-color);
    color: var(--text-light);
    border: none;
}

.btn-primary:hover {
    background-color: #0077E6;
    color: var(--text-light);
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(30, 144, 255, 0.3);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-light);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.2);
    color: var(--text-light);
    text-decoration: none;
    transform: translateY(-2px);
}

/* --- Breadcrumbs --- */
.breadcrumbs {
    padding: 1rem 0;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.breadcrumbs a {
    color: var(--text-secondary);
}

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

.breadcrumbs-separator {
    margin: 0 0.5rem;
    user-select: none;
}

.breadcrumbs-current {
    font-weight: 500;
    color: var(--text-primary);
}

/* --- Left Sidebar (Navigation & TOC) --- */
.sidebar-left {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.sidebar-box {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    box-shadow: var(--shadow-sm);
    transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.sidebar-box h4 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
}

[data-theme="dark"] .sidebar-box h4 {
    color: #38BDF8;
}

.sidebar-menu {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.sidebar-menu-link {
    font-size: 0.9rem;
    color: var(--text-primary);
    display: block;
    padding: 0.35rem 0.5rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.sidebar-menu-link:hover,
.sidebar-menu-link.active {
    background-color: var(--accent-light);
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
}

/* Table of Contents */
.toc-list {
    list-style: none;
    padding-left: 0;
}

.toc-item {
    margin-bottom: 0.5rem;
}

.toc-link {
    font-size: 0.875rem;
    color: var(--text-primary);
    display: block;
    padding: 0.25rem 0;
}

.toc-link:hover {
    color: var(--accent-color);
    text-decoration: none;
}

.toc-item-h3 {
    padding-left: 1rem;
}

/* --- Right Sidebar (EEAT & CTAs) --- */
.sidebar-right {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.eeat-badge {
    background-color: var(--accent-light);
    border: 1px solid rgba(30, 144, 255, 0.2);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.eeat-badge-title {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

[data-theme="dark"] .eeat-badge-title {
    color: #38BDF8;
}

.eeat-badge-desc {
    font-size: 0.85rem;
    color: var(--text-primary);
}

.eeat-badge-meta {
    font-size: 0.75rem;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
    padding-top: 0.5rem;
}

/* --- Main Content Area --- */
.content-area {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.article-meta {
    font-size: 0.875rem;
    color: var(--text-secondary);
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
}

.article-meta span {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.article-body {
    margin-bottom: 3rem;
}

.article-body ul, 
.article-body ol {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
}

.article-body li {
    margin-bottom: 0.5rem;
    font-size: 1.05rem;
}

/* Info Box / Warning Box Alert Style */
.alert-box {
    padding: 1.25rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
}

.alert-box-info {
    background-color: #EBF5FF;
    border-left: 4px solid var(--accent-color);
    color: #1E3F66;
}

[data-theme="dark"] .alert-box-info {
    background-color: #1E293B;
    color: #93C5FD;
}

.alert-box-warning {
    background-color: #FFF9DB;
    border-left: 4px solid #F59F00;
    color: #664D03;
}

[data-theme="dark"] .alert-box-warning {
    background-color: #2D251E;
    color: #FCD34D;
}

/* --- FAQ Accordion --- */
.faq-section {
    margin-top: 3rem;
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
}

.faq-title {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.faq-item {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background-color: var(--bg-surface);
    overflow: hidden;
    transition: background-color var(--transition-normal);
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    text-align: left;
    padding: 1rem 1.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-sans);
}

[data-theme="dark"] .faq-question {
    color: var(--text-primary);
}

.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--text-secondary);
    transition: transform var(--transition-fast);
}

.faq-item.active .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal) ease-out;
}

.faq-answer-inner {
    padding: 0 1.5rem 1.25rem 1.5rem;
    color: var(--text-primary);
    font-size: 1rem;
    line-height: 1.5;
}

/* --- Related Articles --- */
.related-articles-section {
    margin-top: 3rem;
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
}

.related-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-top: 1.25rem;
}

@media (min-width: 768px) {
    .related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.related-card {
    background-color: var(--bg-surface-alt);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.related-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.related-card-category {
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: var(--accent-color);
}

.related-card-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
}

[data-theme="dark"] .related-card-title {
    color: var(--text-primary);
}

.related-card-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* --- Home / Category Grid Section --- */
.section-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem;
}

.silo-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin: 3rem 0;
}

@media (min-width: 768px) {
    .silo-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .silo-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.silo-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.silo-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.silo-card-icon {
    font-size: 2.5rem;
    color: var(--accent-color);
}

.silo-card-title {
    font-size: 1.35rem;
    color: var(--primary-color);
}

[data-theme="dark"] .silo-card-title {
    color: #38BDF8;
}

.silo-card-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.silo-card-link {
    font-weight: 600;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    margin-top: auto;
}

/* --- Interactive Educational Search Simulator Widget --- */
.widget-container {
    background-color: var(--bg-surface-alt);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin: 2rem 0;
}

.widget-title {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--primary-color);
}

[data-theme="dark"] .widget-title {
    color: #38BDF8;
}

.widget-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
}

.widget-search-box {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.widget-input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    background-color: var(--bg-surface);
    color: var(--text-primary);
}

.widget-input:focus {
    border-color: var(--border-focus);
    outline: none;
}

.widget-button {
    background-color: var(--accent-color);
    color: var(--text-light);
    border: none;
    padding: 0 1.25rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    font-family: var(--font-sans);
}

.widget-button:hover {
    background-color: #0077E6;
}

.widget-log {
    background-color: #1E293B;
    color: #38BDF8;
    font-family: monospace;
    font-size: 0.85rem;
    padding: 1rem;
    border-radius: var(--radius-md);
    max-height: 200px;
    overflow-y: auto;
    display: none;
    flex-direction: column;
    gap: 0.35rem;
    border: 1px solid #334155;
}

.widget-log-item {
    line-height: 1.4;
}

.widget-log-success {
    color: #34D399; /* emerald green */
}

.widget-log-warning {
    color: #FBBF24; /* amber yellow */
}

.widget-log-error {
    color: #F87171; /* red */
}

/* --- Footer --- */
footer {
    background-color: var(--primary-color);
    color: #D1D5DB;
    padding: 3rem 0;
    margin-top: auto;
    font-size: 0.9rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

footer h4 {
    color: var(--text-light);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

footer a {
    color: #D1D5DB;
}

footer a:hover {
    color: var(--text-light);
    text-decoration: underline;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: 2fr repeat(3, 1fr);
    }
}

.footer-logo {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-menu {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-disclaimer {
    background-color: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: 1rem;
    font-size: 0.8rem;
    line-height: 1.4;
    color: #A3A3A3;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1.5rem;
    flex-direction: column;
    gap: 1rem;
    font-size: 0.8rem;
}

@media (min-width: 768px) {
    .footer-bottom {
        flex-direction: row;
    }
}