/* === GOOGLE FONTS === */
@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;600;700&family=EB+Garamond:ital,wght@0,400;0,600;1,400;1,600&family=Inter:wght@400;500;600&display=swap');

/* === CSS CUSTOM PROPERTIES === */
:root {
    --color-bg: #060b1a;
    --color-bg-section: #0b1428;
    --color-bg-card: #0f1e3a;
    --color-bg-card-alt: #131e35;
    --color-gold: #c9a84c;
    --color-gold-light: #e8c96a;
    --color-gold-dim: #4a3a1a;
    --color-gold-border: #6a5520;
    --color-white: #f0f0f0;
    --color-white-dim: #b0bac8;
    --color-white-faint: #5a6478;
    --color-accent-blue: #5a9fd4;
    --color-accent-blue-h: #7dbfe8;
    --font-display: 'Cinzel', 'Georgia', serif;
    --font-serif: 'EB Garamond', 'Bookman Old Style', Georgia, serif;
    --font-sans: 'Inter', system-ui, sans-serif;
    --max-width: 900px;
    --max-width-narrow: 720px;
    --radius: 6px;
    --radius-lg: 14px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 8px 48px rgba(0, 0, 0, 0.7);
    --nav-height: 60px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    scroll-padding-top: calc(var(--nav-height) + 1rem);
}

img {
    display: block;
    max-width: 100%;
    height: auto;
}

a {
    color: var(--color-accent-blue);
}

a:hover {
    color: var(--color-accent-blue-h);
}

ul,
ol {
    list-style-position: outside;
}

figure {
    margin: 0;
}

/* === BASE === */
body {
    background-color: var(--color-bg);
    color: var(--color-white);
    font-family: var(--font-sans);
    font-size: 1.0625rem;
    line-height: 1.75;
    position: relative;
    overflow-x: hidden;
}

/* Starfield pseudo-elements */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background-image:
        radial-gradient(1px 1px at 5% 8%, rgba(255, 255, 255, 0.85) 0%, transparent 100%),
        radial-gradient(1px 1px at 18% 22%, rgba(200, 220, 255, 0.65) 0%, transparent 100%),
        radial-gradient(1px 1px at 32% 5%, rgba(255, 255, 255, 0.70) 0%, transparent 100%),
        radial-gradient(1px 1px at 47% 35%, rgba(220, 230, 255, 0.55) 0%, transparent 100%),
        radial-gradient(1px 1px at 63% 12%, rgba(255, 255, 255, 0.80) 0%, transparent 100%),
        radial-gradient(1px 1px at 78% 28%, rgba(200, 215, 255, 0.60) 0%, transparent 100%),
        radial-gradient(1px 1px at 88% 7%, rgba(255, 255, 255, 0.75) 0%, transparent 100%),
        radial-gradient(1px 1px at 92% 42%, rgba(220, 235, 255, 0.50) 0%, transparent 100%),
        radial-gradient(1px 1px at 12% 55%, rgba(255, 255, 255, 0.65) 0%, transparent 100%),
        radial-gradient(1px 1px at 25% 68%, rgba(200, 220, 255, 0.45) 0%, transparent 100%),
        radial-gradient(1px 1px at 55% 72%, rgba(255, 255, 255, 0.70) 0%, transparent 100%),
        radial-gradient(1px 1px at 70% 58%, rgba(215, 225, 255, 0.55) 0%, transparent 100%),
        radial-gradient(1px 1px at 83% 80%, rgba(255, 255, 255, 0.60) 0%, transparent 100%),
        radial-gradient(1px 1px at 40% 88%, rgba(200, 215, 255, 0.50) 0%, transparent 100%),
        radial-gradient(1px 1px at 95% 65%, rgba(255, 255, 255, 0.55) 0%, transparent 100%);
    background-size: 600px 600px;
    opacity: 0.45;
}

body::after {
    content: '';
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background-image:
        radial-gradient(2px 2px at 10% 30%, rgba(255, 255, 255, 0.30) 0%, transparent 100%),
        radial-gradient(2px 2px at 35% 15%, rgba(220, 230, 255, 0.25) 0%, transparent 100%),
        radial-gradient(2px 2px at 60% 50%, rgba(255, 255, 255, 0.28) 0%, transparent 100%),
        radial-gradient(2px 2px at 80% 20%, rgba(200, 220, 255, 0.22) 0%, transparent 100%),
        radial-gradient(2px 2px at 50% 80%, rgba(255, 255, 255, 0.25) 0%, transparent 100%),
        radial-gradient(2px 2px at 20% 75%, rgba(215, 230, 255, 0.20) 0%, transparent 100%),
        radial-gradient(2px 2px at 90% 85%, rgba(255, 255, 255, 0.28) 0%, transparent 100%);
    background-size: 1000px 1000px;
    opacity: 0.35;
}

/* All content above the starfield */
nav,
header,
section,
footer,
.section-photos {
    position: relative;
    z-index: 1;
}

/* === LAYOUT UTILITIES === */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.container-narrow {
    max-width: var(--max-width-narrow);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 5rem 0;
}

/* Decorative divider */
.section-divider {
    text-align: center;
    font-size: 1.5rem;
    color: var(--color-gold-border);
    margin-bottom: 2.5rem;
    letter-spacing: 0.5em;
}

/* Section headings */
.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.4rem, 3vw, 2rem);
    color: var(--color-gold);
    text-align: center;
    margin-bottom: 2.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    justify-content: center;
}

.section-title-line {
    display: block;
    flex: 1;
    height: 1px;
    background: var(--color-gold-dim);
    max-width: 80px;
}

/* === BUTTONS === */
.btn-primary {
    display: inline-block;
    background: var(--color-gold);
    color: #060b1a;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: 0.06em;
    padding: 0.85rem 2rem;
    border-radius: var(--radius);
    text-decoration: none;
    transition: background 0.2s ease, transform 0.1s ease;
}

.btn-primary:hover {
    background: var(--color-gold-light);
    color: #060b1a;
    transform: translateY(-1px);
}

.btn-secondary {
    display: inline-block;
    border: 2px solid var(--color-gold);
    color: var(--color-gold);
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    padding: 0.65rem 1.5rem;
    border-radius: var(--radius);
    text-decoration: none;
    transition: background 0.2s ease, color 0.2s ease;
}

.btn-secondary:hover {
    background: var(--color-gold);
    color: #060b1a;
}

/* === NAVIGATION === */
#site-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(6, 11, 26, 0.92);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--color-gold-dim);
    height: var(--nav-height);
    display: flex;
    align-items: center;
}

.nav-inner {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.nav-logo {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1rem;
    color: var(--color-gold);
    text-decoration: none;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.nav-logo:hover {
    color: var(--color-gold-light);
}

.nav-logo-cross {
    margin-right: 0.4em;
    font-size: 1.1em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    list-style: none;
    flex-wrap: wrap;
}

.nav-links a {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-white-dim);
    text-decoration: none;
    padding: 0.4rem 0.75rem;
    border-radius: var(--radius);
    transition: color 0.15s, background 0.15s;
}

.nav-links a:hover {
    color: var(--color-white);
    background: rgba(201, 168, 76, 0.1);
}

.nav-links a.active {
    color: var(--color-gold);
}

.nav-links .nav-cta {
    background: var(--color-gold);
    color: #060b1a !important;
    font-weight: 600;
    padding: 0.4rem 1rem;
}

.nav-links .nav-cta:hover {
    background: var(--color-gold-light);
    color: #060b1a !important;
}

/* Hamburger */
.nav-hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-gold);
    border-radius: 2px;
    transition: all 0.2s ease;
}

/* === HERO === */
#hero {
    min-height: calc(100vh - var(--nav-height));
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 3rem;
    padding: 5rem 3rem 4rem;
    max-width: 1100px;
    margin: 0 auto;
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.hero-eyebrow {
    font-family: var(--font-display);
    font-size: clamp(0.75rem, 1.5vw, 0.9rem);
    letter-spacing: 0.12em;
    color: var(--color-gold-light);
    text-transform: uppercase;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 700;
    color: var(--color-white);
    line-height: 1.15;
}

.hero-title em {
    color: var(--color-gold);
    font-style: normal;
}

.hero-sub {
    font-family: var(--font-serif);
    font-size: clamp(1rem, 2vw, 1.25rem);
    font-style: italic;
    color: var(--color-white-dim);
}

.hero-image-wrap {
    display: flex;
    justify-content: center;
}

.hero-image-wrap img {
    max-width: 400px;
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-gold-border);
}

/* === INTRO === */
#intro {
    background: var(--color-bg-section);
    padding: 5rem 0;
}

#intro .container-narrow {
    text-align: left;
}

.intro-lead {
    font-size: 1.125rem;
    margin-bottom: 1.25rem;
}

.intro-body p {
    margin-bottom: 1.25rem;
}

.intro-statement {
    font-family: var(--font-display);
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    color: var(--color-gold);
    font-style: italic;
    text-align: center;
    padding: 1.5rem 2rem;
    border-top: 1px solid var(--color-gold-border);
    border-bottom: 1px solid var(--color-gold-border);
    margin: 1.5rem 0;
    line-height: 1.4;
}

/* === VIDEOS === */
#videos {
    background: var(--color-bg);
    padding: 5rem 0;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.video-card {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-gold-dim);
    transition: border-color 0.2s;
}

.video-card:hover {
    border-color: var(--color-gold-border);
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
}

.video-wrapper iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

.video-info {
    padding: 0.85rem 1rem 1rem;
}

.video-title {
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-white);
    margin-bottom: 0.25rem;
    line-height: 1.4;
}

.video-meta {
    font-size: 0.8rem;
    color: var(--color-white-dim);
}

/* === PHOTO STRIP === */
.section-photos {
    background: var(--color-bg-section);
    padding: 2rem 1rem;
}

.photo-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
    max-width: 1100px;
    margin: 0 auto;
}

.photo-item img {
    width: 100%;
    border-radius: var(--radius);
    border: 1px solid var(--color-gold-dim);
    object-fit: cover;
}

.photo-portrait {
    flex: 1 1 280px;
    max-width: 360px;
}

.photo-landscape {
    flex: 1 1 100%;
    max-width: 740px;
}

/* === EVENT === */
#event {
    background: var(--color-bg);
    padding: 5rem 0;
}

.event-date-line {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    font-style: italic;
    color: var(--color-gold-light);
    text-align: center;
    margin-bottom: 2rem;
}

#event .container-narrow p {
    margin-bottom: 1.25rem;
}

.prereq-list {
    list-style-type: upper-alpha;
    padding-left: 1.75rem;
    margin: 0.5rem 0 1.25rem;
}

.prereq-list li {
    margin-bottom: 0.5rem;
    color: var(--color-white);
}

.prereq-list li::marker {
    color: var(--color-gold);
    font-weight: 600;
}

/* === BOOK === */
#book {
    background: var(--color-bg-section);
    padding: 5rem 0;
}

.book-layout {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 3rem;
    align-items: start;
}

.book-cover-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
}

.book-cover-wrap img {
    max-width: 220px;
    width: 100%;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--color-gold-border);
}

.book-text p {
    margin-bottom: 1.25rem;
}

.lewis-quote {
    border-left: 3px solid var(--color-gold);
    padding: 1.25rem 1.5rem;
    background: var(--color-bg-card-alt);
    border-radius: 0 var(--radius) var(--radius) 0;
    margin: 1.75rem 0;
    font-style: italic;
    font-family: var(--font-serif);
    font-size: 1.05rem;
}

.lewis-quote p {
    margin-bottom: 0.75rem;
    font-style: italic;
}

.lewis-quote cite {
    display: block;
    color: var(--color-white-dim);
    font-style: normal;
    font-size: 0.9rem;
    font-family: var(--font-sans);
}

/* === REGISTER === */
#register {
    background: var(--color-bg);
    padding: 5rem 0;
}

.register-layout {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 3rem;
    align-items: center;
}

.speaker-image-wrap img {
    max-width: 280px;
    width: 100%;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-gold-border);
    box-shadow: var(--shadow-lg);
}

#register h2 {
    margin-bottom: 0.5rem;
    justify-content: flex-start;
}

#register h2 .section-title-line {
    display: none;
}

.register-sub {
    font-size: 1.1rem;
    font-family: var(--font-serif);
    font-style: italic;
    color: var(--color-white-dim);
    margin-bottom: 1.75rem;
}

.register-cta-box {
    background: var(--color-bg-card);
    border: 1px solid var(--color-gold);
    border-radius: var(--radius-lg);
    padding: 1.75rem 2rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.btn-large {
    font-size: 1rem;
    padding: 1rem 1.75rem;
    word-break: break-all;
}

.register-note {
    font-size: 0.95rem;
    color: var(--color-white-dim);
}

.register-note a {
    color: var(--color-accent-blue);
}

.register-note strong {
    color: var(--color-white);
}

/* === PRESS === */
#press {
    background: var(--color-bg-section);
    padding: 5rem 0;
}

.press-card {
    display: flex;
    align-items: center;
    gap: 2rem;
    background: var(--color-bg-card);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-gold-dim);
    margin-bottom: 2.5rem;
}

.press-logo-wrap img {
    max-width: 200px;
    width: 100%;
    border-radius: var(--radius);
    filter: brightness(1.05) contrast(1.05);
}

.press-read-label {
    font-family: var(--font-display);
    color: var(--color-gold);
    font-weight: 700;
    letter-spacing: 0.12em;
    font-size: 0.9rem;
    margin-bottom: 0.4rem;
}

.press-text p {
    color: var(--color-white);
}

.press-text a {
    color: var(--color-gold-light);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.press-text a:hover {
    color: var(--color-gold);
}

.press-column-caption {
    text-align: center;
    color: var(--color-white-dim);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.press-column-image img {
    max-width: 100%;
    border-radius: var(--radius);
    border: 1px solid var(--color-gold-dim);
    margin: 0 auto;
}

/* === ARTICLES === */
#articles {
    background: var(--color-bg);
    padding: 5rem 0;
}

.article-interstitial {
    margin-bottom: 3.5rem;
}

.article-interstitial img {
    max-width: 100%;
    border-radius: var(--radius);
    border: 1px solid var(--color-gold-dim);
    margin: 0 auto;
}

.article-card {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    padding: 2.5rem 3rem;
    border: 1px solid var(--color-gold-dim);
    margin-bottom: 2.5rem;
}

.article-number {
    font-family: var(--font-display);
    color: var(--color-gold-border);
    font-size: 0.85rem;
    letter-spacing: 0.12em;
    margin-bottom: 0.25rem;
}

.article-title {
    font-family: var(--font-display);
    font-size: clamp(1.2rem, 2.5vw, 1.6rem);
    color: var(--color-gold);
    margin-bottom: 0.25rem;
}

.article-byline {
    color: var(--color-white-dim);
    font-size: 0.9rem;
    font-style: italic;
    font-family: var(--font-serif);
    padding-bottom: 1.25rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--color-bg-card-alt);
}

.article-body {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    line-height: 1.85;
    color: var(--color-white);
}

.article-body p {
    margin-bottom: 1.2em;
}

.article-body a {
    color: var(--color-accent-blue);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.article-body a:hover {
    color: var(--color-accent-blue-h);
}

.article-subhead {
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--color-white);
    margin: 1.75rem 0 0.6rem;
}

.article-divider {
    border: none;
    border-top: 1px solid var(--color-gold-dim);
    margin: 3rem 0;
}

/* === FOOTER === */
.site-footer {
    background: #030710;
    border-top: 1px solid var(--color-gold-dim);
    padding: 3rem 2rem;
    text-align: center;
}

.footer-cross {
    display: block;
    font-size: 2rem;
    color: var(--color-gold-border);
    margin-bottom: 1rem;
}

.footer-text {
    font-family: var(--font-display);
    color: var(--color-white-dim);
    font-size: 0.95rem;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

.footer-links {
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.footer-links a {
    color: var(--color-accent-blue);
    text-decoration: none;
}

.footer-links a:hover {
    color: var(--color-accent-blue-h);
    text-decoration: underline;
}

.footer-copy {
    color: var(--color-white-faint);
    font-size: 0.8rem;
}

/* === RESPONSIVE === */
@media (max-width: 900px) {
    #hero {
        grid-template-columns: 1fr;
        text-align: center;
        align-items: center;
        padding: 3rem 1.5rem;
        min-height: auto;
        gap: 2rem;
    }

    .hero-content {
        align-items: center;
    }

    .hero-image-wrap img {
        max-width: 320px;
    }

    .book-layout {
        grid-template-columns: 1fr;
    }

    .book-cover-wrap {
        align-items: center;
    }

    .book-cover-wrap img {
        max-width: 180px;
    }

    .register-layout {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .speaker-image-wrap img {
        max-width: 240px;
        margin: 0 auto;
    }

    #register h2 {
        justify-content: center;
    }
}

@media (max-width: 700px) {
    .video-grid {
        grid-template-columns: 1fr;
    }

    .press-card {
        flex-direction: column;
        align-items: flex-start;
    }

    .article-card {
        padding: 1.5rem 1.25rem;
    }

    .nav-hamburger {
        display: flex;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: rgba(6, 11, 26, 0.97);
        flex-direction: column;
        align-items: stretch;
        padding: 1rem;
        border-bottom: 1px solid var(--color-gold-dim);
        gap: 0.25rem;
    }

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

    .nav-links a {
        padding: 0.6rem 1rem;
        border-radius: var(--radius);
    }
}

@media (max-width: 480px) {
    .section {
        padding: 3.5rem 0;
    }

    .section-title {
        font-size: 1.25rem;
    }

    .article-body {
        font-size: 1rem;
    }

    .photo-portrait {
        max-width: 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .btn-primary,
    .btn-secondary,
    .video-card {
        transition: none;
    }
}