/* ==========================================================================
   CSS Reset & Variables
   ========================================================================== */
   :root {
    /* Color Palette - Warm, timeless, minimalist */
    --bg-color: #FAF9F6; /* Warm off-white / pearl */
    --text-main: #2C2C2C; /* Soft charcoal */
    --text-muted: #5A5A5A; /* Muted gray */
    --accent-color: #B87333; /* Copper / Warm Earth */
    --accent-light: #E8DCC8; /* Very soft beige for backgrounds */
    --border-color: #DCD7CD; /* Soft gray-beige */
    
    --academic-blue: #1A365D; /* Deep scholarly blue */
    --zen-gray: #A0A0A0; /* Light gray for historical footnote */
    
    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing & Layout */
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    --container-width: 1000px;
    --nav-height: 70px;
}

html {
    scroll-behavior: smooth;
}

section {
    scroll-margin-top: var(--nav-height);
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 400;
    line-height: 1.3;
    color: var(--text-main);
}

a {
    text-decoration: none;
    color: var(--accent-color);
    transition: color 0.3s ease;
}

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

/* ==========================================================================
   Navigation
   ========================================================================== */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    background-color: rgba(250, 249, 246, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    display: flex;
    align-items: center;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.nav-logo {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-main);
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

@media (max-width: 768px) {
    .nav-links {
        display: none; /* Keep it simple for now, could add hamburger later */
    }
}

/* ==========================================================================
   Hero Section - Zen Minimalism
   ========================================================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 2rem;
    overflow: hidden;
    background-color: var(--bg-color);
}

.hero-zen-wrapper {
    width: 100%;
    max-width: 1200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 4rem 0;
}

.zen-container {
    position: relative;
    width: 100%;
    min-height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: default;
}

.zen-footnote {
    position: absolute;
    width: 100%;
    transition: opacity 1.2s cubic-bezier(0.4, 0, 0.2, 1), transform 1.2s ease;
    z-index: 1;
}

.footnote-text {
    font-family: var(--font-heading);
    font-size: clamp(1.2rem, 2.5vw, 2rem);
    font-style: italic;
    font-weight: 200;
    color: var(--zen-gray);
    line-height: 1.5;
    margin-bottom: 1.5rem;
    letter-spacing: 0.5px;
}

.footnote-attribution {
    font-family: var(--font-body);
    font-size: 0.9rem;
    color: var(--zen-gray);
    letter-spacing: 3px;
    text-transform: uppercase;
    opacity: 0.7;
}

.impact-concept {
    position: absolute;
    width: 100%;
    opacity: 0;
    transform: translateY(20px) scale(0.98);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 2;
    pointer-events: none;
}

.concept-title {
    font-family: var(--font-body) !important;
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800 !important;
    color: var(--academic-blue);
    line-height: 1.1;
    margin: 0;
    letter-spacing: -1px;
}

/* Hover Logic - Triggered by Parent .hero */
.hero:hover .zen-footnote {
    opacity: 0.08;
    transform: translateY(-15px) scale(1.02);
}

.hero:hover .impact-concept {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

.hero-brand-subtle {
    margin-top: 6rem;
    opacity: 0;
    transition: opacity 1s ease 0.3s;
}

.hero:hover .hero-brand-subtle {
    opacity: 1;
}

.brand-name {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    letter-spacing: 2px;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

/* ==========================================================================
   General Sections
   ========================================================================== */
section {
    padding: var(--spacing-xl) 0;
}

section h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
    text-align: center;
    position: relative;
}

section h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 2px;
    background-color: var(--accent-color);
    margin: 1rem auto 0;
}

/* ==========================================================================
   Vision Section
   ========================================================================== */
.vision {
    background-color: #fff;
}

.lead-text {
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    text-align: center;
}

.vision p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.vision-list {
    list-style: none;
    margin: var(--spacing-md) 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.vision-list li {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    padding: 1.5rem;
    background-color: var(--bg-color);
    border-left: 3px solid var(--accent-color);
}

.note {
    font-style: italic;
    color: var(--text-muted);
    text-align: center;
    margin-top: var(--spacing-lg);
}

/* ==========================================================================
   Formats Section
   ========================================================================== */
.format-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.format-card {
    background-color: #fff;
    padding: var(--spacing-lg) var(--spacing-md);
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.format-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.format-card h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--accent-color);
}

.card-details p {
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
}

.feature-list {
    margin: 2rem 0;
    padding-left: 1.2rem;
}

.feature-list li {
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

.card-footer {
    font-size: 0.9rem;
    font-style: italic;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
}

/* ==========================================================================
   Schedule Section
   ========================================================================== */
.schedule {
    background-color: #fff;
}

.section-intro {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    font-size: 1.1rem;
    color: var(--text-muted);
}

.support-layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.support-block {
    background-color: var(--bg-color);
    padding: var(--spacing-md);
    border-left: 3px solid var(--accent-color);
}

.support-block h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.support-details {
    list-style: none;
    padding: 0;
}

.support-details li {
    font-size: 0.95rem;
    margin-bottom: 0.75rem;
    position: relative;
    padding-left: 1.25rem;
}

.support-details li::before {
    content: "✦";
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-size: 0.8rem;
}

.deep-dive-box {
    background-color: var(--accent-light);
    padding: var(--spacing-md);
    border-radius: 8px;
    text-align: center;
}

.deep-dive-box h4 {
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
}

.deep-dive-box p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.seminar-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.seminar-item {
    background-color: #fff;
    padding: 1.5rem;
    border-radius: 4px;
    display: flex;
    flex-direction: column;
    text-align: left;
    border: 1px solid var(--border-color);
}

.seminar-date {
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.seminar-subject {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-main);
    border-bottom: 1px solid var(--accent-light);
    padding-bottom: 0.5rem;
}

.seminar-topics {
    list-style: none;
    padding: 0;
    margin: 0;
}

.seminar-topics li {
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
    line-height: 1.4;
    color: var(--text-muted);
}

.seminar-topics li strong {
    color: var(--text-main);
    display: block;
    margin-bottom: 0.2rem;
}

.seminar-link {
    margin-top: auto;
    padding-top: 1.5rem;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: inline-block;
    border-top: 1px solid var(--accent-light);
}

.seminar-link:hover {
    color: var(--text-main);
}

.seminar-footer {
    margin-top: 1rem;
}

/* ==========================================================================
   Involvement Section
   ========================================================================== */
.roles-wrapper {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-md);
}

.role-block {
    padding: var(--spacing-md);
    background-color: var(--accent-light);
    border-radius: 4px;
}

.role-block h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.lead-name {
    font-family: var(--font-heading);
    color: var(--accent-color);
    margin-bottom: 1rem;
    font-style: italic;
}

.role-block p {
    margin-bottom: 1rem;
}

.benefits {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem !important;
}

.lead-list {
    list-style: none;
    padding: 0;
    margin-bottom: 1.5rem;
}

.lead-list li {
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
    color: var(--text-main);
    line-height: 1.4;
}

.lead-list li strong {
    color: var(--accent-color);
}

.role-quote {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    color: var(--accent-color);
    border-left: 2px solid var(--accent-color);
    padding-left: 1rem;
    margin: 1.5rem 0;
    line-height: 1.4;
}

.mastery-callout {
    background-color: #fff;
    padding: 1.25rem;
    border-radius: 4px;
    margin: 1.5rem 0;
    border: 1px dashed var(--accent-color);
}

.mastery-callout h4 {
    font-size: 1.1rem;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.mastery-callout p {
    font-size: 0.95rem;
    margin-bottom: 0 !important;
}

.btn-outline {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.85rem;
}

.btn-outline:hover {
    background-color: var(--accent-color);
    color: #fff;
}

/* ==========================================================================
   Core Values Section
   ========================================================================== */
.core-values {
    background-color: #fff;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

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

.value-item h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.value-item p {
    font-size: 0.95rem;
    color: var(--text-muted);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
    background-color: var(--text-main);
    color: #fff;
    padding: var(--spacing-xl) 0 2rem;
    text-align: center;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    margin-bottom: var(--spacing-lg);
    text-align: left;
}

.footer-brand h3 {
    color: #fff;
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.footer-brand .tagline {
    font-style: italic;
    color: #aaa;
    margin-top: 1rem;
}

.footer-action p {
    margin-bottom: 1.5rem;
    color: #ccc;
}

.btn-primary {
    display: inline-block;
    padding: 1rem 2.5rem;
    background-color: var(--accent-color);
    color: #fff;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-primary:hover {
    background-color: #a36229;
    color: #fff;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 2rem;
    font-size: 0.85rem;
    color: #888;
}

/* ==========================================================================
   Philosophy Section
   ========================================================================== */
.philosophy {
    background-color: var(--bg-color);
}

.philosophy-motto {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    text-align: center;
    color: var(--accent-color);
    margin-bottom: 0.75rem;
}

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-md) 0 var(--spacing-lg);
}

.philosophy-card {
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    background-color: #fff;
    position: relative;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.philosophy-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.06);
}

.philosophy-card.highlight-card {
    background-color: var(--accent-light);
    border-color: var(--accent-color);
}

.philosophy-card.highlight-card h3 small {
    font-size: 0.9rem;
    color: var(--accent-color);
    display: block;
    margin-top: 0.25rem;
}

.philosophy-icon {
    display: block;
    font-size: 1.2rem;
    color: var(--accent-color);
    margin-bottom: 0.75rem;
    opacity: 0.7;
}

.philosophy-card h3 {
    font-size: 1.4rem;
    margin-bottom: 0.75rem;
    color: var(--text-main);
}

.philosophy-card p {
    font-size: 1rem;
    color: var(--text-muted);
    line-height: 1.7;
}

/* Learning Pyramid Table */
.pyramid-table-wrapper {
    margin-top: var(--spacing-lg);
    text-align: center;
}

.pyramid-label {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.pyramid-table {
    width: 100%;
    max-width: 620px;
    margin: 0 auto;
    border-collapse: collapse;
}

.pyramid-table th {
    text-align: left;
    padding: 0.75rem 1rem;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    border-bottom: 2px solid var(--border-color);
}

.pyramid-table td {
    padding: 0.9rem 1rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 1rem;
    vertical-align: middle;
}

.pyramid-table td:last-child {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.bar-wrap {
    display: inline-block;
    width: 160px;
    height: 10px;
    background-color: var(--accent-light);
    border-radius: 2px;
    overflow: hidden;
    flex-shrink: 0;
}

.bar {
    display: block;
    height: 100%;
    background-color: var(--accent-color);
    border-radius: 2px;
    transition: width 1s ease-out;
}

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

.row-highlight td {
    color: var(--accent-color);
    background-color: rgba(184, 115, 51, 0.06);
}

.row-highlight .bar {
    background-color: var(--accent-color);
}

/* Volunteer Reasons List */
.volunteer-subtitle {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-style: italic;
    color: var(--accent-color);
    margin-bottom: 0.75rem !important;
}

.volunteer-reasons {
    list-style: none;
    margin: 1rem 0 1.25rem;
    padding: 0;
}

.volunteer-reasons li {
    padding: 0.6rem 0;
    padding-left: 1.2rem;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    position: relative;
    font-size: 0.95rem;
    color: var(--text-main);
}

.volunteer-reasons li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

/* Footer Slogan / Feynman Quote */
.footer-slogan {
    border-bottom: 1px solid rgba(255,255,255,0.08);
    padding: var(--spacing-md) 2rem var(--spacing-md);
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.footer-quote {
    font-family: var(--font-heading);
    font-size: clamp(1.3rem, 3vw, 2rem);
    font-style: italic;
    color: rgba(255,255,255,0.92);
    margin-bottom: 0.75rem;
    quotes: none;
}

.footer-quote cite {
    display: block;
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-style: normal;
    letter-spacing: 2px;
    color: var(--accent-color);
    margin-top: 0.75rem;
    text-transform: uppercase;
}

.footer-motto {
    font-size: 0.95rem;
    color: rgba(255,255,255,0.5);
    font-style: italic;
}

/* ==========================================================================
   FAQ Section
   ========================================================================== */
.faq {
    background-color: #fff;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2.5rem;
    margin-top: var(--spacing-lg);
}

.faq-item h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.faq-item p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.7;
}

@media (max-width: 600px) {
    .faq-grid {
        grid-template-columns: 1fr;
    }
}

/* ==========================================================================
   Animations
   ========================================================================== */
.fade-in {
    opacity: 0;
    transition: opacity 1s ease-out;
}

.fade-in.scrolled {
    opacity: 1;
}

.slide-up {
    animation: slideUp 1.2s cubic-bezier(0.165, 0.84, 0.44, 1) forwards;
}

@keyframes slideUp {
    0% {
        opacity: 0;
        transform: translateY(40px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================================================
   Media Queries
   ========================================================================== */
@media (max-width: 768px) {
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .timeline-item {
        flex-direction: column;
        text-align: center;
    }
    
    .timeline-item .month {
        margin-bottom: 0.5rem;
        width: 100%;
    }
    
    .timeline-item .subject {
        text-align: center;
    }
}