:root {
  --cyan: #1cabe2;
  --cyan-dark: #087eaa;
  --orange: #ff7100;
  --ink: #112b3a;
  --muted: #5f7079;
  --pale: #eef8fc;
  --line: #d9e4e9;
  --white: #fff;
  --shadow: 0 18px 55px rgb(17 43 58 / 12%);
  --radius: 1rem;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: #fbfdfe; font-family: "Arial Narrow", "Roboto Condensed", Arial, sans-serif; line-height: 1.5; }
body:has(.main-menu[aria-hidden="false"]) { overflow: hidden; }
a { color: inherit; }
img { display: block; max-width: 100%; }
button, input, textarea, select { font: inherit; }
button, .button, a { -webkit-tap-highlight-color: transparent; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(2.6rem, 11vw, 6.5rem); letter-spacing: -.055em; line-height: .92; }
h2 { letter-spacing: -.025em; line-height: 1.08; }
main { min-height: 65vh; }

.site-header { position: sticky; z-index: 30; top: 0; display: grid; grid-template-columns: 3rem 1fr 3rem; align-items: center; height: 4.25rem; padding: .55rem .75rem; color: var(--white); background: rgb(17 43 58 / 96%); backdrop-filter: blur(12px); }
.event-title { overflow: hidden; font-size: .88rem; font-weight: 800; letter-spacing: .09em; text-align: center; text-decoration: none; text-overflow: ellipsis; text-transform: uppercase; white-space: nowrap; }
.icon-button { display: grid; place-items: center; width: 2.75rem; height: 2.75rem; padding: 0; color: inherit; border: 0; border-radius: 50%; background: transparent; cursor: pointer; font-size: 1.6rem; }
.icon-button:hover { background: rgb(255 255 255 / 10%); }
.outline-icon { display: block; width: 1.5rem; height: 1.5rem; }
.menu-button { gap: 4px; align-content: center; }
.menu-button span { display: block; width: 1.35rem; height: 2px; background: currentColor; }
.bell-button { position: relative; justify-self: end; text-decoration: none; font-size: 1.1rem; }
.public-bell-icon { width: 1.45rem; height: 1.45rem; }
.notification-badge { position: absolute; top: 1px; right: 0; min-width: 1.15rem; padding: 1px 4px; color: #fff; border: 2px solid var(--ink); border-radius: 1rem; background: var(--orange); font-size: .65rem; font-weight: 800; text-align: center; }
.menu-scrim { position: fixed; z-index: 40; inset: 0; background: rgb(2 20 29 / 55%); backdrop-filter: blur(2px); }
.main-menu { position: fixed; z-index: 50; inset: 0 auto 0 0; display: flex; flex-direction: column; width: min(88vw, 24rem); padding: 1rem; color: #fff; background: var(--ink); box-shadow: var(--shadow); transform: translateX(-105%); transition: transform 220ms ease; }
.main-menu[aria-hidden="false"] { transform: translateX(0); }
.menu-brand { display: flex; align-items: flex-start; justify-content: space-between; padding-bottom: 1.5rem; border-bottom: 1px solid rgb(255 255 255 / 16%); }
.menu-brand img { width: 12rem; padding: .7rem; background: #fff; }
.main-menu nav { display: grid; margin-top: 1rem; }
.nav-link { padding: .85rem 1rem; border-left: 3px solid transparent; font-size: 1.25rem; font-weight: 700; text-decoration: none; }
.nav-link:hover, .nav-link.active { border-color: var(--orange); background: rgb(255 255 255 / 8%); }
.menu-section-label { margin: 1rem 1rem .25rem; padding-top: 1rem; color: #8faab6; border-top: 1px solid rgb(255 255 255 / 16%); font-size: .68rem; font-weight: 900; letter-spacing: .16em; text-transform: uppercase; }
.resource-link { display: flex; gap: 1rem; align-items: center; justify-content: space-between; }
.resource-link span:last-child { color: var(--cyan); font-size: 1rem; }
.menu-location { margin: auto 1rem 1rem; color: #a9c0ca; font-size: .9rem; text-transform: uppercase; }

.hero { position: relative; overflow: hidden; min-height: 38rem; padding: 3.5rem 1.25rem 9rem; color: #fff; background: linear-gradient(145deg, #0b95c8 0%, #1cabe2 52%, #087eaa 100%); }
.hero::after { position: absolute; right: -8%; bottom: -2rem; width: 115%; height: 14rem; content: ""; opacity: .92; background: url("/assets/skyline-69f32d4a.png") bottom right / contain no-repeat; }
.network-pattern { position: absolute; inset: 0; opacity: .17; background-image: radial-gradient(circle at center, #fff 1.5px, transparent 2px); background-size: 38px 38px; mask-image: linear-gradient(to bottom right, #000, transparent 75%); }
.hero > *:not(.network-pattern) { position: relative; z-index: 1; }
.hero-logo { width: min(18rem, 72vw); margin-bottom: 5rem; padding: .65rem; background: #fff; }
.hero h1 { max-width: 55rem; margin-bottom: 1rem; }
.hero-tagline { max-width: 34rem; font-size: clamp(1.2rem, 4vw, 1.8rem); }
.eyebrow { margin-bottom: .8rem; color: var(--cyan-dark); font-size: .78rem; font-weight: 900; letter-spacing: .19em; text-transform: uppercase; }
.hero .eyebrow { color: #fff; }
.text-link, .back-link { font-weight: 800; text-underline-offset: .3rem; }
.page-section { width: min(72rem, calc(100% - 2rem)); margin-inline: auto; padding-block: 3.5rem; }
.section-heading { display: flex; gap: 1rem; align-items: center; margin-bottom: 2rem; }
.section-heading span { color: var(--orange); font-weight: 900; }
.section-heading h2 { margin: 0; font-size: 2rem; }
.arrival-note { padding: 1rem; border-left: 4px solid var(--orange); background: #fff5ed; }
.day-grid { display: grid; gap: 1rem; }
.day-card { position: relative; overflow: hidden; min-height: 15rem; padding: 1.4rem; color: #fff; border-radius: var(--radius); background: var(--ink); text-decoration: none; transition: transform 160ms ease; }
.day-card:nth-child(even) { background: var(--cyan-dark); }
.day-card:hover { transform: translateY(-4px); }
.day-card p { margin: 1.4rem 0 .2rem; font-size: .78rem; font-weight: 800; letter-spacing: .15em; }
.day-card h3 { margin: 0; font-size: 2.4rem; text-transform: uppercase; }
.day-card strong { position: absolute; bottom: 1.4rem; }
.day-number { color: var(--cyan); font-size: .85rem; }

.agenda-hero, .page-hero, .about-hero { padding: 3rem 1rem; background: var(--pale); text-align: center; }
.agenda-hero h1, .page-hero h1, .about-hero h1 { margin-bottom: .5rem; color: var(--ink); text-transform: uppercase; }
.day-tabs { position: sticky; z-index: 20; top: 4.25rem; display: flex; overflow-x: auto; padding: .6rem 1rem; border-bottom: 1px solid var(--line); background: rgb(255 255 255 / 95%); scrollbar-width: none; }
.day-tabs a { flex: 1 0 auto; padding: .65rem 1rem; border-bottom: 3px solid transparent; font-weight: 800; text-align: center; text-decoration: none; }
.day-tabs a.active { color: var(--cyan-dark); border-color: var(--orange); }
.agenda-layout { width: min(72rem, 100%); margin-inline: auto; padding: 1rem; }
.track-filter { display: flex; gap: .5rem; overflow-x: auto; padding: .5rem 0 1.5rem; scrollbar-width: none; }
.filter-chip { flex: 0 0 auto; min-height: 2.75rem; padding: .55rem 1rem; color: var(--ink); border: 1px solid var(--line); border-radius: 2rem; background: #fff; cursor: pointer; font-weight: 700; }
.filter-chip.active { color: #fff; border-color: var(--cyan-dark); background: var(--cyan-dark); }
.agenda-block { display: grid; grid-template-columns: minmax(0, 1fr); padding: 1.25rem 0; border-top: 1px solid var(--line); }
.block-time { display: none; flex-direction: column; font-size: .78rem; }
.block-time span { color: var(--muted); }
.block-content { min-width: 0; }
.block-kicker { color: var(--cyan-dark); font-size: .76rem; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.session-columns { display: grid; grid-template-columns: minmax(0, 1fr); gap: .5rem; }
.session-columns.multiple-tracks { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.session-columns.multiple-tracks > .track-column:last-child:nth-child(odd), .session-columns.single-visible > .track-column:not([hidden]) { grid-column: 1 / -1; }
.track-column { min-width: 0; padding: .65rem; border: 1px solid var(--line); border-radius: .75rem; background: #f5fafc; scroll-snap-align: start; }
.track-column[hidden] { display: none; }
.track-column-heading { margin: 0 0 .65rem; color: var(--cyan-dark); font-size: .72rem; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.session-grid { display: grid; gap: .75rem; }
.session-card { display: block; padding: 1.1rem; border: 1px solid var(--line); border-radius: .75rem; background: #fff; box-shadow: 0 6px 20px rgb(17 43 58 / 6%); text-decoration: none; }
.session-card:hover { border-color: var(--cyan); }
.session-card[hidden] { display: none; }
.session-card-heading { display: flex; flex-wrap: wrap; gap: .4rem .75rem; align-items: baseline; justify-content: space-between; margin-bottom: .45rem; }
.session-card-heading time { color: var(--ink); font-size: .78rem; font-weight: 900; }
.session-card h2 { margin-bottom: .8rem; font-size: 1.2rem; }
.session-track { margin: 0; color: var(--cyan-dark); font-size: .68rem; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.topic-row { display: flex; flex-wrap: wrap; gap: .35rem; }
.topic-pill { padding: .22rem .55rem; border-left: 4px solid var(--topic-color); border-radius: .2rem; background: color-mix(in srgb, var(--topic-color) 10%, white); font-size: .7rem; font-weight: 800; }
.session-meta { display: flex; gap: 1rem; margin: 1rem 0 0; }
.session-meta div { display: flex; gap: .35rem; }
.session-meta dt { color: var(--muted); }
.session-meta dd { margin: 0; font-weight: 700; }
.card-arrow { display: inline-block; margin-top: 1rem; color: var(--cyan-dark); font-size: .78rem; font-weight: 800; }
.pause-card { padding: .85rem 1rem; border-radius: .5rem; background: var(--pale); }
.pause-card span { color: var(--cyan-dark); font-size: .7rem; font-weight: 900; text-transform: uppercase; }
.pause-card h2 { margin: 0; font-size: 1rem; }

.session-detail { max-width: 52rem; }
.session-detail h1 { margin: 2rem 0 1rem; font-size: clamp(1.9rem, 6vw, 3.75rem); line-height: 1; }
.session-time { color: var(--cyan-dark); font-size: 1.25rem; font-weight: 800; }
.detail-list { display: grid; gap: .5rem; margin: 2rem 0; padding: 1rem; background: var(--pale); }
.detail-list div { display: grid; grid-template-columns: 7rem 1fr; }
.detail-list dt { color: var(--muted); }
.detail-list dd { margin: 0; font-weight: 700; }
.prose { font-family: Arial, sans-serif; font-size: 1.05rem; }
.prose h2, .prose h3 { margin-top: 2rem; }
.people-grid { display: grid; gap: 1rem; }
.person-card { padding: 1rem; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; text-decoration: none; }
.person-card h2 { margin: 1rem 0 .25rem; }
.person-card p { color: var(--muted); }
.person-photo { display: grid; overflow: hidden; place-items: center; aspect-ratio: 1; color: #fff; border-radius: .7rem; background: linear-gradient(135deg, var(--cyan), var(--cyan-dark)); font-size: 2.2rem; font-weight: 900; }
.person-photo img { width: 100%; height: 100%; object-fit: cover; }
.person-photo.large { width: 9rem; }
.profile { max-width: 52rem; }
.profile-heading { display: flex; gap: 1.5rem; align-items: center; margin: 2rem 0; }
.profile-heading h1 { margin: 0; font-size: clamp(2.5rem, 8vw, 4.5rem); }
.person-mini { padding: .8rem; border: 1px solid var(--line); border-radius: .5rem; text-decoration: none; }
.session-facilitators { margin-top: 3rem; }
.session-facilitator-grid { display: grid; gap: .75rem; }
.session-facilitator-card { display: flex; gap: 1rem; align-items: center; min-height: 5.5rem; padding: .75rem; border: 1px solid var(--line); border-radius: .7rem; background: #fff; text-decoration: none; }
.session-facilitator-card:hover, .session-facilitator-card:focus-visible { border-color: var(--cyan); background: var(--pale); outline: 2px solid var(--cyan); outline-offset: 2px; }
.session-facilitator-card h3 { margin: 0; font-size: 1.05rem; }
.session-facilitator-card p { margin: .15rem 0 0; color: var(--muted); font-size: .85rem; }
.person-photo.facilitator-thumb { flex: 0 0 4rem; width: 4rem; font-size: 1.15rem; }
.linked-sessions { display: grid; gap: .6rem; }
.linked-sessions a { display: grid; padding: 1rem; border-left: 4px solid var(--cyan); background: var(--pale); text-decoration: none; }
.linked-sessions span { color: var(--muted); font-size: .8rem; }
.about-hero img { width: 16rem; margin: 0 auto 3rem; }
.about-grid aside { display: grid; align-content: start; margin-bottom: 2rem; padding: 1.5rem; color: #fff; background: var(--ink); }
.empty-state { grid-column: 1 / -1; padding: 3rem 1rem; border: 1px dashed var(--line); text-align: center; }
.empty-event, .access-page { display: grid; min-height: 100vh; padding: 2rem; background: var(--pale); text-align: center; place-items: center; }
.empty-event .hero-logo, .access-card img { margin-inline: auto; }
.empty-event > img:last-child { width: min(50rem, 100%); }
.access-card { width: min(28rem, 100%); padding: 2rem; border-radius: var(--radius); background: #fff; box-shadow: var(--shadow); }
.access-card h1 { font-size: 2.5rem; }
.stack-form { display: grid; gap: .65rem; margin-top: 2rem; text-align: left; }
.stack-form label { font-weight: 800; }
input, textarea, select { width: 100%; min-height: 2.8rem; padding: .65rem .75rem; border: 1px solid #b8c9d1; border-radius: .4rem; background: #fff; }
textarea { min-height: 8rem; resize: vertical; }
.button { display: inline-flex; justify-content: center; min-height: 2.8rem; padding: .65rem 1.1rem; color: #fff; border: 0; border-radius: .35rem; background: var(--cyan-dark); cursor: pointer; font-weight: 800; text-decoration: none; }
.button:hover { background: var(--ink); }
.button.secondary { color: var(--ink); border: 1px solid var(--line); background: #fff; }
.button.danger { background: #b42318; }
.button.small { min-height: 2.25rem; padding: .4rem .75rem; }

.notification-history { display: grid; gap: .75rem; max-width: 50rem; }
.notification-history article { padding: 1rem; border-left: 4px solid var(--line); background: #fff; box-shadow: 0 5px 18px rgb(17 43 58 / 6%); }
.notification-history article.unseen { border-color: var(--orange); background: #fff9f3; }
.notification-history time { color: var(--muted); font-size: .75rem; }
.notification-history p { margin: .35rem 0; font-family: Arial, sans-serif; }
.notification-history a { color: var(--cyan-dark); font-weight: 800; }
.notification-session-reference { display: grid; gap: .1rem; margin-top: .75rem; padding: .65rem .75rem; border-left: 3px solid var(--orange); background: var(--pale); }
.notification-session-reference span { color: var(--muted); font-size: .68rem; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.notification-session-reference a { color: var(--cyan-dark); font-weight: 800; }
.instant-notice .notification-session-reference { color: var(--ink); background: #fff; }
.notice-stack { position: fixed; z-index: 35; top: 4.75rem; right: .75rem; left: .75rem; display: grid; gap: .5rem; pointer-events: none; }
.instant-notice { display: grid; grid-template-columns: 1fr auto; gap: .5rem; align-items: start; max-width: 38rem; margin-left: auto; padding: 1rem; color: #fff; border-radius: .7rem; background: var(--ink); box-shadow: var(--shadow); pointer-events: auto; }
.instant-notice p { margin: 0; font-family: Arial, sans-serif; }
.instant-notice a { color: var(--cyan); font-weight: 800; }
.flash { position: fixed; z-index: 60; top: 5rem; left: 50%; max-width: calc(100% - 2rem); padding: .75rem 1rem; color: #fff; border-radius: .4rem; background: var(--ink); box-shadow: var(--shadow); transform: translateX(-50%); }
.flash.alert { background: #b42318; }
.flash.access-toast { top: auto; bottom: calc(1rem + env(safe-area-inset-bottom, 0px)); display: flex; gap: .75rem; align-items: center; width: max-content; max-width: calc(100% - 2rem); padding: .65rem .75rem .65rem 1rem; }
.access-toast .icon-button { flex: 0 0 2.75rem; }
.install-banner { position: fixed; z-index: 45; top: calc(4.75rem + env(safe-area-inset-top, 0px)); right: .75rem; left: .75rem; display: grid; grid-template-columns: 1fr auto auto; gap: .75rem; align-items: center; max-width: 40rem; max-height: calc(100dvh - 6rem); overflow-y: auto; margin-inline: auto; padding: .9rem; border: 1px solid var(--line); border-radius: .7rem; background: #fff; box-shadow: var(--shadow); }
.install-banner p { margin: 0; color: var(--muted); font-size: .8rem; }
.install-dismiss { color: var(--ink); }
.install-dismiss:hover, .install-dismiss:focus-visible { background: var(--pale); outline: 2px solid var(--cyan); }
.install-details { grid-column: 1 / -1; }
.install-details:has(ol[hidden]):has(button[hidden]) { display: none; }
.install-details ol { margin: 0; padding-left: 1.5rem; font-size: .9rem; }
.install-details li + li { margin-top: .5rem; }
.install-details .button { margin-top: .75rem; }
.site-footer { overflow: hidden; padding-top: 3rem; color: #fff; background: var(--ink); text-align: center; }
.site-footer img { width: min(60rem, 100%); margin-inline: auto; }
.site-footer p { margin: 0; padding: 1rem; font-size: .75rem; letter-spacing: .1em; text-transform: uppercase; }

.tv-body { overflow: hidden; min-width: 1024px; color: #fff; background: #071d29; }
.tv-screen { display: grid; grid-template-columns: 2fr 1fr; height: 100vh; }
.tv-live { padding: 2.3rem 3rem; }
.tv-live > header { display: grid; grid-template-columns: 12rem 1fr auto; gap: 2rem; align-items: center; margin-bottom: 2.5rem; }
.tv-live > header img { padding: .4rem; background: #fff; }
.tv-live > header h1 { margin: 0; font-size: 3.5rem; text-transform: uppercase; }
.tv-live > header p { margin: 0; color: var(--cyan); }
.tv-live > header time { font-size: 2rem; font-weight: 800; }
.tv-section { margin-top: 1.7rem; }
.tv-label { color: var(--cyan); font-size: 1.15rem; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }
.tv-label span { display: inline-block; width: .65rem; height: .65rem; margin-right: .5rem; border-radius: 50%; background: var(--orange); box-shadow: 0 0 0 7px rgb(255 113 0 / 16%); }
.tv-session { display: grid; grid-template-columns: 9rem 1fr; gap: 1.5rem; margin: .7rem 0; padding: 1.25rem; border-left: 5px solid var(--cyan); background: rgb(255 255 255 / 8%); }
.tv-session h2 { margin: .35rem 0; font-size: clamp(1.5rem, 2.2vw, 2.6rem); }
.tv-session .topic-pill { color: var(--ink); }
.tv-session-time { display: flex; flex-direction: column; font-size: 1.15rem; }
.status-label { padding: .25rem .5rem; color: var(--ink); background: var(--orange); font-size: .7rem; font-weight: 900; text-transform: uppercase; }
.tv-session .status-label.starting-soon { background: #a8dfb4; }
.tv-agenda { overflow: hidden; padding: 2.5rem 2rem; color: var(--ink); background: #fff; }
.tv-agenda h2 { font-size: 2rem; }
.tv-block { display: grid; grid-template-columns: 4.5rem 1fr; gap: .7rem; padding: .62rem 0; border-top: 1px solid var(--line); }
.tv-block time { color: var(--cyan-dark); font-weight: 800; }
.tv-block p { margin: 0 0 .3rem; font-size: .85rem; font-weight: 700; }
.tv-block.break, .tv-block.lunch, .tv-block.networking { color: var(--muted); background: var(--pale); }
.tv-block.current { color: var(--ink); background: #fff0e3; box-shadow: inset 4px 0 var(--orange); padding-inline: .7rem; }
.tv-block-time { display: flex; flex-direction: column; align-items: flex-start; gap: .3rem; }
.tv-block-now { padding: .15rem .35rem; color: var(--ink); background: var(--orange); font-size: .65rem; font-weight: 900; text-transform: uppercase; }
.tv-empty { padding: 2rem; color: #a9c0ca; border: 1px dashed rgb(255 255 255 / 20%); }

@media (min-width: 700px) {
  .site-header { padding-inline: 1.5rem; }
  .hero { padding: 5rem 7vw 11rem; }
  .day-grid { grid-template-columns: repeat(2, 1fr); }
  .agenda-layout { padding: 2rem; }
  .agenda-block { grid-template-columns: 8rem 1fr; gap: 1rem; }
  .block-time { display: flex; }
  .session-columns, .session-columns.multiple-tracks { grid-template-columns: repeat(var(--track-column-count), minmax(15rem, 1fr)); gap: .75rem; overflow-x: auto; padding-bottom: .35rem; scroll-snap-type: x proximity; }
  .session-columns.multiple-tracks > .track-column:last-child:nth-child(odd) { grid-column: auto; }
  .session-columns.single-visible > .track-column:not([hidden]) { grid-column: 1 / -1; }
  .people-grid { grid-template-columns: repeat(3, 1fr); }
  .session-facilitator-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .about-grid { display: grid; grid-template-columns: 15rem 1fr; gap: 3rem; }
  .notice-stack { left: auto; width: 38rem; }
}

@media (max-width: 699px) {
  .session-columns.multiple-tracks .track-column { padding: .45rem; }
  .session-columns.multiple-tracks .session-card { padding: .7rem; }
  .session-columns.multiple-tracks .session-card h2 { font-size: 1rem; }
  .session-columns.multiple-tracks .topic-pill { padding-inline: .4rem; font-size: .62rem; }
  .session-columns.multiple-tracks .session-meta { display: grid; gap: .25rem; }
  .session-columns.multiple-tracks .session-meta div { display: grid; gap: 0; }
}

@media (min-width: 1050px) {
  .day-grid { grid-template-columns: repeat(4, 1fr); }
  .hero h1 { font-size: 6.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}