:root {
    --bg-gradient: linear-gradient(160deg, #020617 0%, #0b1224 35%, #111c3d 100%);
    --bg-panel: rgba(10, 17, 35, 0.82);
    --bg-panel-strong: rgba(12, 21, 44, 0.92);
    --accent: #38bdf8;
    --accent-strong: #2563eb;
    --accent-soft: rgba(56, 189, 248, 0.18);
    --text-primary: #f8fafc;
    --text-secondary: #cbd5f5;
    --text-muted: #94a3b8;
    --border-color: rgba(148, 163, 184, 0.22);
    --border-strong: rgba(56, 189, 248, 0.35);
    --surface-shadow: 0 24px 60px rgba(2, 6, 23, 0.55);
    --surface-shadow-soft: 0 16px 40px rgba(2, 6, 23, 0.4);
    --radius-lg: 24px;
    --radius-md: 18px;
    --radius-sm: 12px;
    --max-width: min(1140px, 92vw);
    --header-height: 76px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Outfit', 'Segoe UI', sans-serif;
    color: var(--text-primary);
    background: var(--bg-gradient);
    line-height: 1.6;
    min-height: 100vh;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: radial-gradient(circle at 20% 20%, rgba(56, 189, 248, 0.14), transparent 45%),
                radial-gradient(circle at 80% 0%, rgba(59, 130, 246, 0.16), transparent 50%),
                radial-gradient(circle at 50% 80%, rgba(2, 132, 199, 0.1), transparent 50%);
    pointer-events: none;
    z-index: -1;
}

a {
    color: inherit;
    text-decoration: none;
}

a:hover,
a:focus {
    color: var(--accent);
}

button {
    font: inherit;
    color: inherit;
    background: none;
    border: none;
    cursor: pointer;
}

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

main {
    display: block;
}

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

.section {
    padding-block: clamp(80px, 14vw, 140px);
    scroll-margin-top: calc(var(--header-height) + 16px);
}

.section-heading {
    max-width: 640px;
    margin-bottom: 48px;
}

.section-heading.align-center {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.section-heading p,
.section-subtitle {
    color: var(--text-secondary);
    max-width: 60ch;
    margin-top: 12px;
    margin-left: auto;
    margin-right: auto;
}

.section-subtitle {
    font-size: 1rem;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 16px;
}

.eyebrow::before {
    content: '';
    width: 36px;
    height: 1px;
    background: var(--accent);
    opacity: 0.6;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(2, 10, 24, 0.82);
    border-bottom: 1px solid rgba(148, 163, 184, 0.12);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
}

.header-inner {
    min-height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    position: relative;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.brand img {
    width: 52px;
    height: 52px;
    box-shadow: 0 12px 25px rgba(15, 23, 42, 0.45);
}

.brand-text {
    font-size: 1.05rem;
}

.nav-toggle {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(148, 163, 184, 0.3);
    background: rgba(12, 21, 44, 0.6);
    color: var(--text-primary);
    transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.nav-toggle:hover,
.nav-toggle:focus-visible {
    background: rgba(37, 99, 235, 0.18);
    border-color: var(--accent);
    color: var(--accent);
}

.nav-toggle-box {
    position: relative;
    width: 20px;
    height: 16px;
    display: inline-block;
}

.nav-toggle-line {
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    border-radius: 4px;
    background: currentColor;
    transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle-line:nth-child(1) {
    top: 0;
}

.nav-toggle-line:nth-child(2) {
    top: 7px;
}

.nav-toggle-line:nth-child(3) {
    bottom: 0;
}

.nav-toggle-label {
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.nav-toggle.is-active .nav-toggle-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-active .nav-toggle-line:nth-child(2) {
    opacity: 0;
}

.nav-toggle.is-active .nav-toggle-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.site-nav {
    position: absolute;
    top: calc(100% + 14px);
    right: 0;
    width: min(280px, 90vw);
    background: rgba(10, 17, 35, 0.96);
    border: 1px solid rgba(148, 163, 184, 0.16);
    box-shadow: var(--surface-shadow-soft);
    border-radius: var(--radius-md);
    padding: 18px;
    display: none;
}

.site-nav.open {
    display: block;
}

.site-nav ul {
    list-style: none;
    display: grid;
    gap: 10px;
}

.site-nav a {
    display: block;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition), background var(--transition);
}

.site-nav a:hover,
.site-nav a:focus-visible {
    color: var(--accent);
    background: rgba(37, 99, 235, 0.16);
}

.hero {
    position: relative;
    padding-block: clamp(120px, 18vw, 180px);
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 65% 15%, rgba(14, 165, 233, 0.28), transparent 45%),
                radial-gradient(circle at 15% 85%, rgba(37, 99, 235, 0.24), transparent 45%);
    pointer-events: none;
}

.hero-inner {
    position: relative;
    z-index: 1;
    display: grid;
    gap: clamp(36px, 6vw, 64px);
    align-items: center;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: 24px;
    max-width: 560px;
}

.hero h1 {
    font-size: clamp(2.1rem, 5vw, 3.4rem);
    line-height: 1.15;
}

.hero p {
    color: var(--text-secondary);
    max-width: 60ch;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 24px;
    border-radius: 999px;
    border: 1px solid transparent;
    font-weight: 600;
    letter-spacing: 0.04em;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
    text-transform: uppercase;
    font-size: 0.88rem;
}

.btn:focus-visible {
    outline: 2px solid rgba(56, 189, 248, 0.6);
    outline-offset: 3px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-strong), #0ea5e9);
    box-shadow: 0 12px 35px rgba(37, 99, 235, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 18px 45px rgba(14, 165, 233, 0.45);
}

.btn-secondary {
    border-color: var(--accent);
    background: rgba(8, 47, 73, 0.35);
    color: var(--accent);
}

.btn-secondary:hover {
    background: rgba(14, 165, 233, 0.14);
    transform: translateY(-2px);
}

.hero-highlight {
    background: var(--bg-panel);
    border-radius: var(--radius-lg);
    padding: clamp(24px, 5vw, 32px);
    border: 1px solid var(--border-color);
    box-shadow: var(--surface-shadow-soft);
}

.hero-highlight h3 {
    font-size: 1.25rem;
    margin-bottom: 14px;
}

.hero-highlight ul {
    list-style: none;
    display: grid;
    gap: 12px;
    color: var(--text-secondary);
}

.hero-highlight li {
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.hero-highlight li::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    margin-top: 8px;
}

.about-grid {
    display: grid;
    gap: clamp(32px, 6vw, 48px);
    align-items: center;
}

.about-copy p + p {
    margin-top: 18px;
}

.about-figure {
    background: var(--bg-panel);
    border-radius: var(--radius-lg);
    padding: 24px;
    border: 1px solid rgba(148, 163, 184, 0.16);
    box-shadow: var(--surface-shadow-soft);
    text-align: center;
}

.about-figure img {
    border-radius: var(--radius-md);
    border: 1px solid rgba(37, 99, 235, 0.25);
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.45);
    margin-bottom: 16px;
}

.about-figure figcaption {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.history-timeline {
    display: grid;
    gap: 24px;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.timeline-card {
    position: relative;
    padding: 28px 26px;
    border-radius: var(--radius-lg);
    background: var(--bg-panel);
    border: 1px solid rgba(148, 163, 184, 0.16);
    box-shadow: var(--surface-shadow-soft);
    display: flex;
    flex-direction: column;
    gap: 16px;
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.timeline-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.4), rgba(56, 189, 248, 0.4));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}
.timeline-card > * {
    position: relative;
    z-index: 1;
}




.timeline-card:hover,
.timeline-card:focus-within {
    transform: translateY(-6px);
    border-color: var(--border-strong);
    box-shadow: var(--surface-shadow);
}

.timeline-tag {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    align-self: flex-start;
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 0.72rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--accent);
    background: rgba(37, 99, 235, 0.2);
    border: 1px solid rgba(56, 189, 248, 0.45);
}

.timeline-card h3 {
    font-size: 1.15rem;
}

.timeline-card p {
    color: var(--text-secondary);
    overflow-wrap: anywhere;
    word-break: break-word;
}

.timeline-list {
    list-style: none;
    display: grid;
    gap: 10px;
    color: var(--text-muted);
}

.timeline-list li {
    position: relative;
    padding-left: 18px;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.timeline-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
}

.members-grid {
    display: grid;
    gap: 24px;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.member-card {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 22px 24px;
    border-radius: var(--radius-md);
    background: var(--bg-panel);
    border: 1px solid rgba(148, 163, 184, 0.16);
    box-shadow: var(--surface-shadow-soft);
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.member-card:hover,
.member-card:focus-within {
    transform: translateY(-4px);
    border-color: var(--border-strong);
    box-shadow: var(--surface-shadow);
}

.member-card img {
    width: 72px;
    height: 72px;
    border-radius: 18px;
    object-fit: cover;
    border: 2px solid rgba(56, 189, 248, 0.35);
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.45);
}

.member-card h3 {
    font-size: 1.1rem;
    margin-bottom: 6px;
    overflow-wrap: anywhere;
    word-break: break-word;
}

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

.flags .section-heading {
    margin-bottom: 36px;
}

.flag-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    margin-bottom: 32px;
}

.flag-filter-btn {
    padding: 10px 18px;
    border-radius: 999px;
    border: 1px solid rgba(148, 163, 184, 0.32);
    background: rgba(12, 21, 44, 0.6);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-secondary);
    transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
}

.flag-filter-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

.flag-filter-btn.active {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.3), rgba(56, 189, 248, 0.24));
    border-color: rgba(56, 189, 248, 0.6);
    color: var(--accent);
    box-shadow: 0 12px 28px rgba(37, 99, 235, 0.28);
}

.flag-grid {
    display: grid;
    gap: 18px;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.flag-card {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 18px 20px;
    border-radius: var(--radius-md);
    background: var(--bg-panel);
    border: 1px solid rgba(148, 163, 184, 0.16);
    box-shadow: var(--surface-shadow-soft);
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.flag-card:hover,
.flag-card:focus-visible {
    transform: translateY(-4px);
    border-color: var(--border-strong);
    box-shadow: var(--surface-shadow);
}

.flag-images {
    display: flex;
    align-items: center;
    gap: 8px;
}

.flag-img {
    width: 40px;
    height: 28px;
    border-radius: 6px;
    object-fit: cover;
    box-shadow: 0 10px 20px rgba(15, 23, 42, 0.38);
    border: 1px solid rgba(148, 163, 184, 0.3);
}

.flag-meta {
    display: flex;
    flex-direction: column;
    gap: 6px;
    text-align: right;
}

.flag-title {
    font-weight: 600;
    font-size: 1rem;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.flag-badges {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
}

.flag-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 6px 10px;
    border-radius: 999px;
    font-size: 0.7rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    border: 1px solid rgba(148, 163, 184, 0.26);
    background: rgba(12, 21, 44, 0.7);
    color: var(--text-muted);
}

.flag-badge.count {
    background: var(--accent-soft);
    border-color: rgba(56, 189, 248, 0.5);
    color: var(--accent);
}

.flag-badge.current {
    background: rgba(34, 197, 94, 0.18);
    border-color: rgba(34, 197, 94, 0.4);
    color: #4ade80;
}

.flag-badge.alumni {
    background: rgba(251, 146, 60, 0.18);
    border-color: rgba(249, 115, 22, 0.35);
    color: #fb923c;
}

.tooltip {
    position: absolute;
    inset: auto 20px 100% 20px;
    transform: translateY(-12px);
    padding: 16px 18px;
    border-radius: var(--radius-sm);
    background: var(--bg-panel-strong);
    border: 1px solid rgba(148, 163, 184, 0.25);
    box-shadow: 0 18px 30px rgba(15, 23, 42, 0.55);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
    color: var(--text-secondary);
    display: grid;
    gap: 8px;
    text-align: left;
    pointer-events: none;
}

.flag-card:hover .tooltip,
.flag-card:focus-visible .tooltip,
.flag-card:focus-within .tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateY(-20px);
}

.tooltip strong {
    font-size: 0.85rem;
    color: var(--accent);
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.tooltip span {
    font-size: 0.85rem;
    line-height: 1.5;
}

.noscript-note {
    text-align: center;
    color: var(--text-muted);
    margin-top: 24px;
}

.media-inner {
    display: grid;
    gap: clamp(28px, 6vw, 48px);
    align-items: center;
}

.video-wrap {
    position: relative;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(148, 163, 184, 0.16);
    background: rgba(12, 21, 44, 0.8);
    overflow: hidden;
    box-shadow: var(--surface-shadow-soft);
}

.youtube-video {
    width: 100%;
    aspect-ratio: 16 / 9;
    border: 0;
    border-radius: var(--radius-lg);
}

.contact .social-links {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    margin-top: 32px;
}

.social-link {
    display: inline-flex;
    align-items: center;
    gap: 16px;
    padding: 16px 22px;
    background: var(--bg-panel);
    border-radius: var(--radius-md);
    border: 1px solid rgba(148, 163, 184, 0.2);
    font-weight: 600;
    letter-spacing: 0.04em;
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.social-link img {
    width: 46px;
    height: 46px;
    object-fit: contain;
    filter: drop-shadow(0 12px 20px rgba(15, 23, 42, 0.45));
}

.social-link:hover,
.social-link:focus-visible {
    transform: translateY(-4px);
    border-color: var(--border-strong);
    box-shadow: var(--surface-shadow);
    color: var(--accent);
}

.site-footer {
    border-top: 1px solid rgba(148, 163, 184, 0.12);
    background: rgba(2, 10, 24, 0.85);
    padding-block: 28px;
}

.footer-inner {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.footer-link {
    color: var(--text-primary);
    font-weight: 600;
}

.footer-link:hover,
.footer-link:focus-visible {
    color: var(--accent);
}

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

:focus-visible {
    outline: 2px solid rgba(56, 189, 248, 0.6);
    outline-offset: 4px;
}

@media (min-width: 768px) {
    .site-nav {
        position: static;
        display: block !important;
        width: auto;
        background: transparent;
        border: none;
        box-shadow: none;
        padding: 0;
    }

    .site-nav ul {
        display: flex;
        align-items: center;
        gap: 24px;
    }

    .site-nav a {
        color: var(--text-primary);
        padding: 8px 12px;
    }

    .nav-toggle {
        display: none;
    }

    .about-grid {
        grid-template-columns: 1.1fr 0.9fr;
    }

    .media-inner {
        grid-template-columns: 1fr 1.2fr;
    }
}

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

    .flag-grid {
        grid-template-columns: 1fr;
    }

    .tooltip {
        inset: auto 16px 100% 16px;
    }
}

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

    *,
    *::before,
    *::after {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}







.code-grid {
    display: grid;
    gap: 24px;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.code-card {
    background: var(--bg-panel);
    border: 1px solid rgba(148, 163, 184, 0.18);
    border-radius: var(--radius-lg);
    box-shadow: var(--surface-shadow-soft);
    padding: 28px 26px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.code-card h3 {
    font-size: 1.15rem;
}

.code-list {
    list-style: none;
    display: grid;
    gap: 12px;
    color: var(--text-secondary);
}

.rules-list {
    list-style: none;
    display: grid;
    gap: 18px;
    counter-reset: rules;
}

.rules-list li {
    position: relative;
    padding-left: 38px;
    color: var(--text-secondary);
}

.rules-list li::before {
    counter-increment: rules;
    content: counter(rules);
    position: absolute;
    left: 0;
    top: 2px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 1px solid rgba(56, 189, 248, 0.5);
    display: grid;
    place-items: center;
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    color: var(--accent);
    background: rgba(37, 99, 235, 0.18);
}

.rule-title {
    display: block;
    font-weight: 600;
    margin-bottom: 6px;
}

.rule-note {
    display: block;
    font-size: 0.92rem;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.rule-meta {
    font-size: 0.78rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--accent);
}

.rule-meta.danger {
    color: #fb7185;
}