:root {
  --ink: #132f46;
  --brown-950: #0b2238;
  --brown-900: #123653;
  --brown-800: #174a68;
  --amber: #16d9eb;
  --amber-light: #76edf5;
  --amber-pale: #e8fbfd;
  --magenta: #ef28cf;
  --paper: #f3f8fb;
  --white: #fff;
  --muted: #5b6f7f;
  --line: #d5e3ea;
  --radius: 14px;
  --shadow: 0 22px 70px rgba(12, 51, 76, .13);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 104px; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: Inter, sans-serif; -webkit-font-smoothing: antialiased; }
a { color: inherit; }
.skip-link { position: fixed; z-index: 100; left: 12px; top: -80px; padding: 12px 16px; background: var(--white); color: var(--ink); }
.skip-link:focus { top: 12px; }

.top-banner { width: 100%; background: #123653; line-height: 0; }
.top-banner img { display: block; width: min(100%, 1280px); height: auto; margin: 0 auto; }

.site-header {
  position: sticky; z-index: 30; top: 0; min-height: 78px; padding: 0 max(24px, calc((100vw - 1180px) / 2));
  display: flex; align-items: center; justify-content: space-between; gap: 22px;
  background: rgba(11, 34, 56, .97); color: var(--white); border-bottom: 1px solid rgba(255,255,255,.1); backdrop-filter: blur(14px);
}
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.brand > span:last-child { display: flex; flex-direction: column; line-height: 1.1; }
.brand strong { font-family: Rajdhani, sans-serif; font-size: 17px; letter-spacing: .04em; text-transform: uppercase; }
.brand small { margin-top: 4px; color: rgba(255,255,255,.7); font-size: 10px; letter-spacing: .14em; text-transform: uppercase; }
.brand-mark { width: 43px; height: 43px; display: grid; place-items: center; border: 1px solid rgba(22,217,235,.72); border-radius: 50%; color: var(--amber); font: 700 12px Rajdhani, sans-serif; letter-spacing: .05em; }
.site-nav { display: flex; align-items: center; justify-content: flex-end; gap: clamp(10px, 1.3vw, 22px); font-size: 12px; font-weight: 700; }
.site-nav a { color: rgba(255,255,255,.76); text-decoration: none; white-space: nowrap; }
.site-nav a:hover, .site-nav a:focus-visible, .site-nav a[aria-current="page"] { color: var(--white); }
.site-nav a[aria-current="page"] { text-decoration: underline; text-decoration-color: var(--amber); text-decoration-thickness: 2px; text-underline-offset: 6px; }
.site-nav .nav-cta { padding: 10px 14px; border: 1px solid rgba(22,217,235,.72); border-radius: 999px; color: var(--white); }
.menu-toggle { display: none; border: 1px solid rgba(22,217,235,.72); border-radius: 999px; padding: 9px 14px; background: transparent; color: var(--white); font: inherit; font-weight: 700; }

.hero {
  position: relative; isolation: isolate; min-height: 620px; overflow: hidden;
  display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(340px, .85fr); align-items: center; gap: 70px;
  padding: 100px max(24px, calc((100vw - 1180px) / 2)); color: var(--white);
  background: radial-gradient(circle at 83% 30%, rgba(239,40,207,.2), transparent 28%), linear-gradient(135deg, var(--brown-950), var(--brown-900) 55%, #164a6b);
}
.hero::before { content: ""; position: absolute; z-index: -1; inset: 0; opacity: .11; background-image: linear-gradient(29deg, transparent 47%, #16d9eb 48%, transparent 49%), linear-gradient(151deg, transparent 47%, #ef28cf 48%, transparent 49%); background-size: 120px 80px; }
.hero-copy { max-width: 720px; }
.eyebrow { display: flex; align-items: center; gap: 11px; margin: 0 0 20px; color: var(--amber); font-size: 12px; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.eyebrow span { width: 28px; height: 1px; background: currentColor; }
.hero h1 { margin: 0; max-width: 850px; color: var(--white); font-family: Rajdhani, sans-serif; font-size: clamp(58px, 7vw, 94px); font-weight: 600; line-height: .84; letter-spacing: -.04em; text-transform: uppercase; }
.hero h1 em { display: inline-block; margin-top: 13px; color: var(--amber); font-style: normal; font-weight: 500; }
.hero-lead { max-width: 650px; margin: 30px 0 0; color: rgba(255,255,255,.7); font-size: clamp(17px, 1.7vw, 20px); line-height: 1.65; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.button { min-height: 52px; display: inline-flex; align-items: center; justify-content: center; padding: 0 23px; border: 1px solid transparent; border-radius: 6px; font-size: 14px; font-weight: 800; text-decoration: none; transition: transform .2s, background .2s; }
.button:hover { transform: translateY(-2px); }
.button:focus-visible, .outline-link:focus-visible, .contact-card a:focus-visible, .site-footer a:focus-visible { outline: 3px solid var(--amber-light); outline-offset: 3px; }
.button-primary { background: var(--amber); color: var(--brown-950); }
.button-primary:hover { background: var(--amber-light); }
.button-secondary { border-color: rgba(255,255,255,.27); background: rgba(255,255,255,.03); color: var(--white); }
.hero-symbol { position: relative; width: min(38vw, 430px); aspect-ratio: 1; justify-self: end; }
.planet-orbit, .signal-core { position: absolute; border-radius: 50%; }
.planet-orbit { z-index: 1; border: 1px solid rgba(22,217,235,.21); }
.orbit-neptune { inset: 1%; border-color: rgba(22,217,235,.34); }
.orbit-uranus { inset: 5%; border-style: dashed; border-color: rgba(255,255,255,.16); }
.orbit-saturn { inset: 9%; border-color: rgba(239,40,207,.22); }
.orbit-jupiter { inset: 13%; border-style: dashed; border-color: rgba(22,217,235,.24); }
.orbit-mars { inset: 17%; border-color: rgba(239,40,207,.24); }
.orbit-earth { inset: 21%; border-color: rgba(22,217,235,.48); }
.orbit-venus { inset: 25%; border-style: dashed; border-color: rgba(255,255,255,.18); }
.orbit-mercury { inset: 29%; border-color: rgba(22,217,235,.25); }
.orbit-runner { position: absolute; inset: -1px; border-radius: 50%; animation: orbital-travel linear infinite; }
.orbit-mercury .orbit-runner { animation-duration: 56s; animation-delay: -17s; }
.orbit-venus .orbit-runner { animation-duration: 70s; animation-delay: -41s; }
.orbit-earth .orbit-runner { animation-duration: 86s; animation-delay: -29s; }
.orbit-mars .orbit-runner { animation-duration: 102s; animation-delay: -73s; }
.orbit-jupiter .orbit-runner { animation-duration: 124s; animation-delay: -53s; }
.orbit-saturn .orbit-runner { animation-duration: 146s; animation-delay: -97s; }
.orbit-uranus .orbit-runner { animation-duration: 168s; animation-delay: -131s; }
.orbit-neptune .orbit-runner { animation-duration: 192s; animation-delay: -109s; }
.planet { position: absolute; left: 50%; top: 0; display: block; border-radius: 50%; transform: translate(-50%, -50%); }
.planet-mercury { width: 6px; height: 6px; background: radial-gradient(circle at 32% 28%, #e2f0f2, #849ca5 58%, #40566a); }
.planet-venus { width: 9px; height: 9px; background: radial-gradient(circle at 32% 30%, #fff1bd, #e6a66c 58%, #9f5f66); }
.planet-earth { width: 11px; height: 11px; border: 1px solid rgba(255,255,255,.65); background: radial-gradient(circle at 35% 30%, #e8ffff 0 8%, #27ddec 9% 46%, #168f9c 47% 64%, #145982 65%); box-shadow: 0 0 13px rgba(118,237,245,.9); }
.planet-mars { width: 8px; height: 8px; background: radial-gradient(circle at 32% 30%, #ffd0ac, #df7461 58%, #7d3547); }
.planet-jupiter { width: 16px; height: 16px; background: repeating-linear-gradient(0deg, #f3d5a4 0 3px, #b97670 3px 5px, #e8bd89 5px 7px); box-shadow: inset -3px -2px 4px rgba(77,42,58,.38); }
.planet-saturn { width: 13px; height: 13px; background: radial-gradient(circle at 35% 30%, #fff3bd, #d7ad71 60%, #8c6468); box-shadow: inset -2px -2px 3px rgba(62,37,55,.35); }
.planet-saturn::after { content: ""; position: absolute; left: 50%; top: 50%; width: 23px; height: 7px; border: 1px solid rgba(255,225,171,.88); border-radius: 50%; transform: translate(-50%, -50%) rotate(-18deg); box-shadow: 0 0 5px rgba(255,225,171,.22); }
.planet-uranus { width: 10px; height: 10px; background: radial-gradient(circle at 32% 30%, #efffff, #8ce5e9 55%, #3c9cb4); }
.planet-neptune { width: 10px; height: 10px; background: radial-gradient(circle at 32% 30%, #bff4ff, #2c8fe2 55%, #274e9f); box-shadow: 0 0 7px rgba(44,143,226,.38); }
.signal-core { z-index: 2; inset: 34%; display: flex; flex-direction: column; align-items: center; justify-content: center; border: 1px solid rgba(22,217,235,.72); background: rgba(22,217,235,.1); box-shadow: 0 0 70px rgba(22,217,235,.1), 0 0 100px rgba(239,40,207,.14); }
.signal-core span { color: var(--white); font: 600 clamp(34px, 4.8vw, 58px) Rajdhani, sans-serif; line-height: .9; }
.signal-core small { margin-top: 12px; color: var(--amber); font-size: 10px; font-weight: 800; letter-spacing: .16em; }

@keyframes orbital-travel {
  to { transform: rotate(1turn); }
}

.event-facts { position: relative; z-index: 2; width: min(1180px, calc(100% - 48px)); margin: -42px auto 0; display: grid; grid-template-columns: repeat(4, 1fr); overflow: hidden; border-radius: var(--radius); background: var(--white); box-shadow: var(--shadow); }
.event-facts article { min-height: 155px; display: grid; grid-template-columns: auto 1fr; gap: 18px; padding: 29px 25px; border-right: 1px solid var(--line); }
.event-facts article:last-child { border: 0; }
.fact-icon { width: 24px; height: 24px; display: grid; place-items: center; color: #087b8f; }
.fact-icon svg { width: 24px; height: 24px; }
.event-facts small { display: block; margin-bottom: 8px; color: var(--muted); font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: .1em; }
.event-facts strong { display: block; font-size: 16px; line-height: 1.35; }
.event-facts p { margin: 8px 0 0; color: var(--muted); font-size: 12px; line-height: 1.45; }

.welcome-section { width: min(1180px, calc(100% - 48px)); margin: 112px auto 0; }
.welcome-heading { margin-bottom: 30px; }
.welcome-heading .eyebrow { margin-bottom: 13px; color: #087488; }
.welcome-heading h2 { margin: 0; font-family: Rajdhani, sans-serif; font-size: clamp(40px, 5vw, 60px); line-height: .95; letter-spacing: -.035em; }
.welcome-letter { position: relative; isolation: isolate; overflow: hidden; display: grid; grid-template-columns: minmax(0, 1fr) minmax(250px, .34fr); gap: clamp(42px, 7vw, 90px); padding: clamp(36px, 6vw, 72px); border: 1px solid var(--line); border-left: 5px solid var(--amber); border-radius: var(--radius); background: var(--white); box-shadow: var(--shadow); }
.welcome-letter::after { content: ""; position: absolute; z-index: -1; right: -115px; top: -125px; width: 300px; height: 300px; border: 1px solid rgba(22,217,235,.28); border-radius: 50%; box-shadow: 0 0 0 38px rgba(22,217,235,.04), 0 0 0 76px rgba(239,40,207,.025); }
.welcome-copy { max-width: 760px; }
.welcome-copy p { margin: 0 0 1.15em; color: var(--muted); font-size: 15px; line-height: 1.8; }
.welcome-copy .welcome-lead { color: var(--ink); font-size: 17px; }
.welcome-copy strong { color: var(--ink); }
.welcome-copy .welcome-closing { margin: 1.8em 0 0; color: #087488; font-family: Rajdhani, sans-serif; font-size: 25px; font-weight: 700; }
.welcome-signature { align-self: end; padding: 26px 0 4px 28px; border-left: 1px solid var(--line); }
.welcome-signature span, .welcome-signature strong { display: block; }
.welcome-signature span { margin-bottom: 22px; color: var(--muted); font-size: 11px; font-weight: 800; line-height: 1.55; letter-spacing: .08em; text-transform: uppercase; }
.welcome-signature strong { color: var(--ink); font-family: Rajdhani, sans-serif; font-size: 21px; line-height: 1.3; }
.welcome-signature strong + strong { margin-top: 9px; }
.welcome-videos { margin-top: 20px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); grid-template-rows: repeat(2, minmax(0, 1fr)); gap: 20px; }
.welcome-video-card { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); box-shadow: 0 15px 45px rgba(12,51,76,.06); }
.welcome-video-card-featured { grid-row: 1 / span 2; display: flex; flex-direction: column; }
.welcome-video-frame { position: relative; aspect-ratio: 16 / 9; background: var(--brown-950); }
.welcome-video-card-featured .welcome-video-frame { min-height: 0; flex: 1 1 auto; aspect-ratio: auto; }
.welcome-video-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.welcome-video-caption { padding: 20px 24px 22px; }
.welcome-video-caption small { display: block; margin-bottom: 7px; color: #087488; font-size: 10px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.welcome-video-caption h3 { margin: 0; color: var(--ink); font-family: Rajdhani, sans-serif; font-size: 24px; line-height: 1.2; }

.content-section { width: min(1180px, calc(100% - 48px)); margin: 112px auto 0; }
.section-heading { margin-bottom: 34px; display: flex; align-items: flex-end; justify-content: space-between; gap: 28px; }
.section-heading .eyebrow { margin-bottom: 13px; color: #087488; }
.section-heading h2, .venue-copy h2, .social-section h2, .registration-section h2, .office-section h2 { margin: 0; font-family: Rajdhani, sans-serif; font-size: clamp(40px, 5vw, 60px); line-height: .95; letter-spacing: -.035em; text-transform: uppercase; }
.status-pill { padding: 9px 13px; border: 1px solid #9ddce4; border-radius: 999px; color: #075e70; background: var(--amber-pale); font-size: 11px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.placeholder-card { min-height: 230px; display: flex; align-items: center; gap: 30px; padding: clamp(30px, 5vw, 58px); border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); box-shadow: 0 15px 45px rgba(49,27,12,.055); }
.placeholder-icon { width: 76px; height: 76px; flex: 0 0 76px; display: grid; place-items: center; border: 1px solid #9bdce5; border-radius: 50%; color: #087488; font: 700 18px Rajdhani, sans-serif; }
.placeholder-icon svg { width: 32px; height: 32px; }
.placeholder-card h3, .speaker-placeholder h3 { margin: 0; font-size: 22px; }
.placeholder-card p, .speaker-placeholder p { max-width: 680px; margin: 10px 0 0; color: var(--muted); line-height: 1.65; }

.program-days { display: grid; gap: 34px; }
.program-day { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); box-shadow: 0 18px 52px rgba(12,51,76,.08); }
.program-day-header { min-height: 150px; padding: 30px clamp(28px, 4vw, 50px); display: flex; align-items: center; gap: clamp(28px, 5vw, 65px); background: radial-gradient(circle at 88% 25%, rgba(239,40,207,.19), transparent 30%), linear-gradient(125deg, var(--brown-950), #164a6b); color: var(--white); }
.program-day-header > time { min-width: 190px; display: flex; align-items: center; gap: 17px; }
.program-day-header > time strong { color: var(--amber); font: 600 76px/.8 Rajdhani, sans-serif; letter-spacing: -.04em; }
.program-day-header > time span { max-width: 92px; color: rgba(255,255,255,.65); font-size: 11px; font-weight: 800; line-height: 1.45; letter-spacing: .1em; text-transform: uppercase; }
.program-day-header > div { padding-left: clamp(28px, 4vw, 55px); border-left: 1px solid rgba(22,217,235,.45); }
.program-day-header small, .program-session-header small, .program-item-dinner small { display: block; color: var(--amber); font-size: 10px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.program-day-header h3 { margin: 5px 0 0; font: 600 clamp(36px, 4vw, 50px)/1 Rajdhani, sans-serif; letter-spacing: -.025em; text-transform: uppercase; }
.program-timeline { padding: 22px clamp(24px, 4vw, 46px) 36px; }
.program-item { position: relative; display: grid; grid-template-columns: 150px minmax(0, 1fr); align-items: center; min-height: 86px; }
.program-item::before { content: ""; position: absolute; z-index: 0; left: 165px; top: 0; bottom: 0; width: 1px; background: #a8dce4; }
.program-item::after { content: ""; position: absolute; z-index: 2; left: 160px; top: 50%; width: 9px; height: 9px; margin-top: -6px; border: 2px solid var(--white); border-radius: 50%; background: var(--amber); box-shadow: 0 0 0 1px #48b5c5; }
.program-item > time { padding-right: 26px; color: #075e70; font: 700 17px Rajdhani, sans-serif; letter-spacing: .015em; white-space: nowrap; }
.program-item > div { position: relative; z-index: 1; min-width: 0; margin: 7px 0 7px 32px; padding: 20px 24px; border: 1px solid #dcebf0; border-radius: 10px; background: #fbfeff; }
.program-item h4 { margin: 0; font-size: 16px; line-height: 1.4; }
.program-item-break > div { display: flex; align-items: center; gap: 12px; border-color: #9ddce4; background: var(--amber-pale); }
.program-item-break h4 { color: #075e70; font-size: 13px; letter-spacing: .06em; text-transform: uppercase; }
.program-item-icon { flex: 0 0 auto; color: #087488; font-size: 10px; }
.program-item-opening > div { border-left: 3px solid var(--amber); }
.program-item-dinner { margin-top: 12px; }
.program-item-dinner > div { min-height: 96px; display: flex; align-items: center; gap: 18px; border-color: #1b607a; background: linear-gradient(125deg, var(--brown-950), #164a6b); color: var(--white); }
.program-item-dinner .program-item-icon { width: 42px; height: 42px; display: grid; place-items: center; border: 1px solid rgba(22,217,235,.45); border-radius: 50%; color: var(--amber); }
.program-item-dinner .program-item-icon svg { width: 21px; height: 21px; }
.program-item-dinner h4 { margin-top: 4px; font: 600 24px/1 Rajdhani, sans-serif; text-transform: uppercase; }
.program-session { margin: 20px 0; overflow: hidden; border: 1px solid #c7e2e8; border-radius: 12px; background: #f9fcfd; }
.program-session-header { display: grid; grid-template-columns: 150px minmax(0,1fr); gap: 32px; padding: 28px 30px; background: linear-gradient(120deg, #123653, #17617d); color: var(--white); }
.program-session-header > time { padding-top: 3px; color: var(--amber); font: 700 18px Rajdhani, sans-serif; white-space: nowrap; }
.program-session-header h4 { margin: 6px 0 0; font: 700 clamp(22px, 2.5vw, 30px)/1.12 Rajdhani, sans-serif; letter-spacing: -.015em; text-transform: uppercase; }
.program-session-header p { margin: 13px 0 0; color: rgba(255,255,255,.76); font-size: 12px; line-height: 1.55; }
.program-session-header p strong { color: var(--white); }
.program-subsession { padding: 22px 30px; border-top: 1px solid #bce3e8; border-bottom: 1px solid #bce3e8; background: var(--amber-pale); }
.program-subsession h5 { margin: 0; color: #075e70; font: 700 22px Rajdhani, sans-serif; text-transform: uppercase; }
.program-subsession p { margin: 8px 0 0; color: var(--muted); font-size: 12px; line-height: 1.55; }
.program-talks { padding: 0 30px; background: var(--white); }
.program-talk { display: grid; grid-template-columns: 150px minmax(0,1fr); gap: 24px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.program-talk:last-child { border-bottom: 0; }
.program-talk > time { color: #075e70; font: 700 16px Rajdhani, sans-serif; white-space: nowrap; }
.program-talk h5 { margin: 0; font-size: 15px; line-height: 1.48; }
.program-talk p { margin: 7px 0 0; color: var(--muted); font-size: 12px; line-height: 1.55; }
.program-talk p + p { margin-top: 5px; }
.program-talk-discussion h5 { color: #075e70; }
.program-talk-sponsored { margin: 0 -30px; padding-left: 30px; padding-right: 30px; background: linear-gradient(90deg, rgba(239,40,207,.06), rgba(22,217,235,.08)); }
.program-talk-sponsored h5 { color: #6b2266; }

.committee-grid { display: grid; grid-template-columns: minmax(0,.75fr) minmax(0,1.25fr); gap: 20px; }
.committee-card { padding: clamp(30px, 5vw, 52px); border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); box-shadow: 0 15px 45px rgba(12,51,76,.06); }
.committee-card small { display: block; min-height: 34px; color: #087488; font-size: 10px; font-weight: 800; line-height: 1.55; letter-spacing: .1em; text-transform: uppercase; }
.committee-card ul { margin: 26px 0 0; padding: 0; list-style: none; columns: 2; column-gap: 32px; }
.committee-card li { break-inside: avoid; margin-bottom: 13px; color: var(--ink); font: 600 18px/1.35 Rajdhani, sans-serif; }
.committee-chairs { border-left: 5px solid var(--amber); background: linear-gradient(140deg, var(--white), var(--amber-pale)); }
.committee-chair-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin-top: 26px; }
.committee-person { min-width: 0; margin: 0; }
.committee-person img { display: block; width: 100%; height: auto; aspect-ratio: 4 / 5; object-fit: cover; border-radius: 10px; box-shadow: 0 10px 28px rgba(12,51,76,.14); }
.committee-person figcaption { margin-top: 13px; color: var(--ink); font: 700 20px/1.25 Rajdhani, sans-serif; }

.venue-section { width: min(1180px, calc(100% - 48px)); margin: 112px auto 0; display: grid; grid-template-columns: minmax(0,.85fr) minmax(480px,1.15fr); overflow: hidden; border-radius: var(--radius); background: var(--brown-900); color: var(--white); box-shadow: var(--shadow); }
.venue-copy { padding: clamp(40px, 6vw, 70px); align-self: center; }
.venue-copy p:not(.eyebrow) { margin: 24px 0; color: rgba(255,255,255,.68); line-height: 1.7; }
.venue-copy h2 + .outline-link { margin-top: 28px; }
.outline-link { min-height: 49px; display: inline-flex; align-items: center; gap: 14px; padding: 0 17px; border: 1px solid rgba(255,255,255,.28); border-radius: 6px; text-decoration: none; font-size: 13px; font-weight: 800; }
.outline-link:hover { border-color: var(--amber); background: rgba(22,217,235,.1); }
.venue-map, .venue-map iframe { width: 100%; min-height: 480px; }
.venue-map { background: #d8e7ec; }
.venue-map iframe { display: block; border: 0; }

.speaker-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.speaker-placeholder { min-height: 250px; padding: 42px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); }
.speaker-placeholder > span { width: 58px; height: 58px; margin-bottom: 34px; display: grid; place-items: center; border: 1px solid #9bdce5; border-radius: 50%; color: #087488; font: 700 16px Rajdhani, sans-serif; }
.speaker-placeholder.accent { background: var(--amber-pale); }

.social-section { width: min(1180px, calc(100% - 48px)); margin: 112px auto 0; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 60px; padding: clamp(38px, 6vw, 74px); border-radius: var(--radius); background: linear-gradient(125deg, var(--brown-950), #4e250d); color: var(--white); }
.social-section > div:first-child > p:last-child { max-width: 730px; color: rgba(255,255,255,.68); line-height: 1.7; }
.social-price { min-width: 210px; padding: 29px; border: 1px solid rgba(245,157,34,.4); border-radius: 12px; text-align: center; background: rgba(245,157,34,.08); }
.social-price small, .social-price span { display: block; color: rgba(255,255,255,.58); font-size: 10px; letter-spacing: .1em; text-transform: uppercase; }
.social-price strong { display: block; margin: 9px 0; color: var(--amber); font: 700 38px Rajdhani, sans-serif; }

.partner-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.partner-grid > div { min-height: 190px; padding: 40px; border: 1px dashed #93c7d5; border-radius: var(--radius); background: rgba(255,255,255,.62); }
.partner-grid small { color: #087488; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.partner-grid.single { grid-template-columns: 1fr; }
.partner-grid p { margin: 22px 0 0; color: var(--muted); line-height: 1.6; }

.patronage-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 420px)); justify-content: center; justify-items: center; gap: 20px; }
.patronage-card { width: min(100%, 420px); min-height: 360px; padding: 34px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); box-shadow: 0 15px 45px rgba(12,51,76,.06); }
.patronage-card:last-child:nth-child(odd) { grid-column: 1 / -1; }
.patronage-card img { display: block; width: min(100%, 300px); height: auto; }
.patronage-card img.patronage-logo-wide { width: min(100%, 340px); }

.certificate-card { text-align: center; }
.certificate-link { display: block; max-width: 500px; margin: 0 auto; padding: 18px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); box-shadow: 0 15px 45px rgba(12,51,76,.06); transition: transform .2s, box-shadow .2s; }
.certificate-link:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.certificate-link:focus-visible { outline: 3px solid var(--amber-light); outline-offset: 4px; }
.certificate-link img { display: block; width: 100%; height: auto; }
.certificate-card p { margin: 18px 0 0; color: var(--muted); font-size: 13px; line-height: 1.6; }

.registration-section { width: min(1180px, calc(100% - 48px)); margin: 112px auto; display: grid; grid-template-columns: 1fr auto; align-items: start; gap: 42px 70px; padding: clamp(40px, 6vw, 72px); border-radius: var(--radius); background: linear-gradient(125deg, var(--amber), #7aebf3); color: var(--brown-950); box-shadow: var(--shadow); }
.registration-section .eyebrow { color: #104a64; }
.registration-section > div:first-child > p:last-child { max-width: 720px; line-height: 1.7; }
.registration-note { min-width: 240px; padding: 28px; border-left: 1px solid rgba(42,26,16,.25); }
.registration-note strong, .registration-note span, .registration-note small { display: block; }
.registration-note strong { font: 700 31px Rajdhani, sans-serif; }
.registration-note span { margin-top: 4px; font-weight: 800; }
.registration-note small { margin-top: 17px; font-size: 10px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.registration-form-card { grid-column: 1 / -1; width: 100%; overflow: hidden; padding: clamp(12px, 2.5vw, 26px); border: 1px solid rgba(18, 54, 83, .12); border-radius: var(--radius); background: var(--white); box-shadow: 0 18px 48px rgba(12, 51, 76, .16); }
.local-registration-frame { display: block; width: 100%; height: 700px; border: 0; background: var(--white); }

.office-section { width: min(1180px, calc(100% - 48px)); margin: 112px auto; display: grid; grid-template-columns: 1fr minmax(300px,.55fr); gap: 60px; align-items: end; }
.office-section .eyebrow { color: #087488; }
.address-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; margin-top: 34px; }
.address-grid address { color: var(--muted); font-style: normal; line-height: 1.65; }
.address-grid strong { display: block; margin-bottom: 7px; color: var(--ink); }
.contact-card { padding: 36px; border-radius: var(--radius); background: var(--white); box-shadow: var(--shadow); }
.contact-card small, .contact-card strong, .contact-card a { display: block; }
.contact-card small { margin-bottom: 18px; color: #087488; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.contact-card strong { margin-bottom: 12px; font-size: 24px; }
.contact-card a { margin-top: 8px; color: #075e70; overflow-wrap: anywhere; }
.contact-person + .contact-person { margin-top: 27px; padding-top: 25px; border-top: 1px solid var(--line); }
.office-website { margin: 28px 0 0; }
.office-website a, .accommodation-card a { color: #075e70; font-weight: 700; }
.topic-list { margin: 16px 0 0; padding-left: 20px; color: var(--muted); line-height: 1.75; }

.site-footer { min-height: 160px; padding: 45px max(24px, calc((100vw - 1180px) / 2)); display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: 38px; background: var(--brown-950); color: rgba(255,255,255,.62); font-size: 12px; }
.site-footer a { color: var(--white); text-decoration: none; }
.site-footer p { margin: 0; }

@media (max-width: 1120px) {
  .site-nav { position: absolute; top: 78px; left: 0; right: 0; padding: 20px 24px 25px; flex-wrap: wrap; justify-content: center; background: rgba(11,34,56,.99); border-top: 1px solid rgba(255,255,255,.1); box-shadow: 0 20px 35px rgba(0,0,0,.18); }
  .js .site-nav { display: none; }
  .js .site-nav.is-open { display: flex; }
  .menu-toggle { display: block; }
  .event-facts { grid-template-columns: repeat(2, 1fr); }
  .event-facts article:nth-child(2) { border-right: 0; }
  .event-facts article:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
}

@media (max-width: 850px) {
  .hero { min-height: 610px; grid-template-columns: 1fr; padding-top: 86px; padding-bottom: 100px; }
  .hero-copy { position: relative; z-index: 2; }
  .hero-symbol { position: absolute; right: -110px; bottom: -70px; width: 430px; opacity: .48; }
  .venue-section { grid-template-columns: 1fr; }
  .venue-map, .venue-map iframe { min-height: 380px; }
  .speaker-grid, .partner-grid, .committee-grid, .patronage-grid { grid-template-columns: 1fr; }
  .patronage-card:last-child:nth-child(odd) { grid-column: auto; }
  .committee-card ul { columns: 2; }
  .welcome-letter { grid-template-columns: 1fr; }
  .welcome-signature { padding: 26px 0 0; border-top: 1px solid var(--line); border-left: 0; }
  .welcome-videos { grid-template-columns: 1fr; grid-template-rows: none; }
  .welcome-video-card-featured { grid-row: auto; }
  .welcome-video-card-featured .welcome-video-frame { flex: none; aspect-ratio: 4 / 3; }
  .social-section, .registration-section { grid-template-columns: 1fr; gap: 30px; }
  .social-price { justify-self: start; }
  .registration-note { border-top: 1px solid rgba(42,26,16,.25); border-left: 0; padding-left: 0; }
  .office-section { grid-template-columns: 1fr; }
  .site-footer { grid-template-columns: 1fr; gap: 20px; }
}

@media (max-width: 560px) {
  html { scroll-padding-top: 84px; }
  .top-banner img { width: 100%; height: auto; }
  .site-header { min-height: 70px; padding: 0 16px; }
  .site-nav { top: 70px; align-items: stretch; flex-direction: column; }
  .site-nav a { padding: 8px; text-align: center; }
  .brand strong { font-size: 14px; }
  .brand-mark { width: 38px; height: 38px; }
  .hero { min-height: 820px; padding-left: 20px; padding-right: 20px; padding-bottom: 340px; }
  .hero h1 { font-size: clamp(50px, 15vw, 67px); }
  .hero-symbol { right: 25px; bottom: -10px; width: 340px; opacity: .58; }
  .hero-actions { flex-direction: column; }
  .button { width: 100%; }
  .event-facts { width: calc(100% - 28px); grid-template-columns: 1fr; }
  .event-facts article { min-height: 120px; border-right: 0; border-bottom: 1px solid var(--line); }
  .welcome-section, .content-section, .venue-section, .social-section, .registration-section, .office-section { width: calc(100% - 30px); margin-top: 78px; }
  .welcome-letter { gap: 30px; padding: 32px 24px; }
  .welcome-copy p { font-size: 14px; line-height: 1.72; }
  .welcome-copy .welcome-lead { font-size: 16px; }
  .registration-section { margin-bottom: 78px; }
  .registration-form-card { padding: 10px; }
  .section-heading { align-items: flex-start; flex-direction: column; }
  .placeholder-card { align-items: flex-start; flex-direction: column; padding: 28px 23px; }
  .program-days { gap: 24px; }
  .program-day-header { min-height: 126px; padding: 25px 22px; gap: 19px; }
  .program-day-header > time { min-width: 0; gap: 12px; }
  .program-day-header > time strong { font-size: 58px; }
  .program-day-header > time span { max-width: 74px; font-size: 9px; }
  .program-day-header > div { padding-left: 19px; }
  .program-day-header h3 { font-size: 34px; }
  .program-timeline { padding: 16px 16px 23px; }
  .program-item { grid-template-columns: 1fr; min-height: 0; padding: 12px 0; }
  .program-item::before, .program-item::after { display: none; }
  .program-item > time { padding: 0 3px 9px; font-size: 17px; }
  .program-item > div { margin: 0; padding: 17px 18px; }
  .program-session { margin: 16px 0; }
  .program-session-header { grid-template-columns: 1fr; gap: 10px; padding: 23px 19px; }
  .program-session-header > time { font-size: 18px; }
  .program-session-header h4 { overflow-wrap: anywhere; font-size: 23px; }
  .program-session-header p { font-size: 11px; }
  .program-subsession { padding: 19px; }
  .program-talks { padding: 0 18px; }
  .program-talk { grid-template-columns: 1fr; gap: 8px; padding: 18px 0; }
  .program-talk > time { font-size: 17px; }
  .program-talk h5 { overflow-wrap: anywhere; }
  .program-talk-sponsored { margin: 0 -18px; padding-left: 18px; padding-right: 18px; }
  .committee-card { padding: 30px 24px; }
  .committee-card ul { columns: 1; }
  .committee-card small { min-height: 0; }
  .committee-person figcaption { font-size: 18px; }
  .venue-copy, .social-section, .registration-section { padding: 34px 24px; }
  .venue-map, .venue-map iframe { min-height: 320px; }
  .speaker-placeholder, .partner-grid > div { padding: 30px 24px; }
  .address-grid { grid-template-columns: 1fr; }
  .office-section { margin-bottom: 78px; }
  .contact-card { padding: 30px 24px; }
  .site-footer { padding: 40px 24px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
  .orbit-runner { animation: none !important; }
}