@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@600;700;800;900&family=DM+Sans:wght@400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* Wisconsin leads. Google colors identify the developer community. */
:root {
  --red: #c5050c;
  --red-dark: #9b0000;
  --paper: #fff;
  --ink: #181818;
  --yellow: #fbbc04;
  --blue: #4285f4;
  --green: #34a853;
  --google-red: #ea4335;
  --line: #d5d5d5;
  --muted: #595959;
  --white: #fff;
  --display: 'Barlow Condensed', Impact, sans-serif;
  --stripes: repeating-linear-gradient(90deg, var(--red) 0 28px, #fff 28px 56px);
  font-family: 'DM Sans', sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
}
* { box-sizing: border-box; }
body { margin: 0; }
a { color: inherit; text-underline-offset: 5px; }
button, input { font: inherit; }
button, a, input, summary { -webkit-tap-highlight-color: transparent; }
button, a { touch-action: manipulation; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .55; }
a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 5px;
}
::selection { background: var(--yellow); color: var(--ink); }
.skip { position: fixed; top: -80px; left: 20px; z-index: 100; background: var(--yellow); padding: 14px; }
.skip:focus { top: 10px; }
.wrap { width: min(1240px, calc(100% - 96px)); margin: auto; }
.eyebrow, .number, .tag, .meta, .caption {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .075em;
  text-transform: uppercase;
}
.eyebrow { display: flex; align-items: center; gap: 12px; }
.eyebrow::before { content: ''; width: 8px; height: 8px; background: var(--red); flex: 0 0 8px; }

/* Shared navigation and Google developer mark. */
.gdg-symbol { width: 43px; height: 26px; flex-shrink: 0; fill: none; stroke-width: 8; stroke-linecap: round; }
.topbar { border-bottom: 1px solid var(--ink); background: #fff; position: relative; z-index: 10; }
.nav { min-height: 86px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-family: 'Space Grotesk', sans-serif; font-size: 23px; font-weight: 700; letter-spacing: -1px; }
.brand svg { width: 37px; height: 37px; }
.brand sup { font-size: 12px; letter-spacing: 0; align-self: flex-start; margin-top: 6px; color: var(--red); }
.navlinks { display: flex; align-items: center; gap: 28px; font-size: 13px; font-weight: 600; }
.navlinks a { text-decoration: none; }
.navlinks a:hover { text-decoration: underline; text-decoration-color: var(--red); }
.button { display: inline-flex; justify-content: center; align-items: center; gap: 30px; min-height: 49px; padding: 14px 23px; background: var(--red); color: #fff; text-decoration: none; border: 1px solid var(--red); font-weight: 700; font-size: 14px; border-radius: 0; transition: background .15s, color .15s; }
.button:hover { background: var(--red-dark); border-color: var(--red-dark); }
.button.light { background: var(--yellow); color: var(--ink); border-color: var(--yellow); }
.button.light:hover { background: #ffe082; }
.button.outline { background: transparent; color: var(--ink); border-color: var(--ink); }
.button.outline:hover { background: #eef3fd; color: var(--ink); }
.menu-toggle { white-space: nowrap; flex-shrink: 0; display: none; background: none; border: 1px solid var(--ink); padding: 10px; }

/* Overalls stripes frame a clean reading surface, never the body copy. */
.hero { padding: 0 28px; background: var(--stripes); overflow: hidden; }
.hero > .wrap { background: #fff; padding-top: 26px; width: min(1340px, 100%); padding-inline: 50px; }
.hero-top { display: flex; justify-content: space-between; align-items: center; padding-bottom: 22px; border-bottom: 1px solid var(--line); gap: 20px; }
.hero-top p { margin: 0; font-size: 11px; }
.edition { font: 500 10px 'Space Grotesk', sans-serif; letter-spacing: .06em; color: var(--muted); }
.hero-grid { display: grid; grid-template-columns: 1.06fr 1fr; gap: 55px; align-items: center; padding: 39px 0 42px; }
.hero-kicker { font: 700 12px 'Space Grotesk', sans-serif; letter-spacing: .19em; margin: 0 0 16px; color: var(--red); }
.hero h1 { font-family: var(--display); font-size: clamp(90px, 9vw, 132px); font-weight: 800; line-height: .83; letter-spacing: -.025em; margin: 0 0 27px; }
.hero h1 .hero-year { display: inline-block; margin-left: 20px; color: var(--red); font: 500 36px 'Space Grotesk', sans-serif; letter-spacing: -.06em; vertical-align: baseline; }
.hero-copy { max-width: 400px; font-size: 15px; line-height: 1.65; margin: 0 0 25px; color: #494949; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 22px; }
.text-link { font-size: 13px; font-weight: 600; }
.hero-note { font-size: 11px; color: var(--muted); margin-top: 16px; }
.art { position: relative; min-width: 0; background: #fff; }
.art svg { width: 100%; height: auto; display: block; }
.poster-bottom { display: flex; justify-content: space-between; align-items: center; padding: 13px 17px; font: 600 10px 'Space Grotesk', sans-serif; letter-spacing: .09em; }
.poster-bottom { border-top: 1px solid var(--line); background: #fff; }
.google-dots { display: inline-flex; gap: 7px; }
.google-dots i { width: 9px; height: 9px; border-radius: 50%; background: var(--blue); }
.google-dots i:nth-child(2) { background: var(--google-red); }
.google-dots i:nth-child(3) { background: var(--yellow); }
.google-dots i:nth-child(4) { background: var(--green); }
.event-strip { display: grid; grid-template-columns: 1fr 1fr 1fr; border-top: 1px solid var(--ink); padding: 23px 0; gap: 25px; }
.event-strip > div { display: flex; gap: 15px; align-items: center; }
.event-strip .number { color: var(--red); font-size: 18px; font-family: var(--display); font-weight: 700; border-right: 1px solid var(--line); padding: 5px 14px 5px 0; }
.event-strip strong { font-size: 12px; display: block; }
.event-strip small { color: var(--muted); display: block; margin-top: 5px; font-size: 10px; }

/* Editorial sections; color identifies specific functions and categories. */
.section { padding: 90px 0; border-bottom: 1px solid var(--line); scroll-margin-top: 24px; }
.section-grid { display: grid; grid-template-columns: 1fr 1.65fr; gap: 80px; }
.section-heading { display: flex; align-items: baseline; gap: 20px; margin-bottom: 35px; }
.section-heading .number { color: var(--muted); }
h2 { font-family: 'Space Grotesk', sans-serif; font-size: clamp(34px, 3.5vw, 48px); letter-spacing: -.055em; line-height: 1.1; font-weight: 500; margin: 20px 0 25px; }
h3 { font-family: 'Space Grotesk', sans-serif; font-size: 22px; letter-spacing: -.04em; font-weight: 600; margin: 0 0 12px; }
p { line-height: 1.7; }
.intro-large { font-size: 24px; line-height: 1.5; margin-top: 15px; letter-spacing: -.025em; }
.body-copy { color: var(--muted); max-width: 570px; font-size: 15px; }
.host-lockup { display: flex; align-items: center; gap: 17px; padding-bottom: 23px; border-bottom: 1px solid var(--line); margin-bottom: 27px; font-size: 13px; line-height: 1.6; }
.host-lockup .gdg-symbol { width: 65px; height: 38px; }
.host-lockup strong { font-size: 17px; font-weight: 600; }
.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: 40px; }
.principles article { border-top: 3px solid var(--blue); padding-top: 20px; }
.principles article:nth-child(2) { border-color: var(--google-red); }
.principles article:nth-child(3) { border-color: var(--green); }
.principles p { font-size: 13px; color: var(--muted); margin-bottom: 0; }
.principles h3 { font-size: 17px; }
.note { font-size: 12px; color: var(--muted); line-height: 1.6; }
#schedule { background: #f5f5f5; }
.schedule-head { display: flex; justify-content: space-between; gap: 35px; align-items: end; }
.tabs { display: flex; gap: 8px; margin: 25px 0 32px; }
.tabs button { border: 1px solid var(--ink); color: var(--ink); background: transparent; min-height: 46px; padding: 12px 23px; font-size: 13px; }
.tabs button[aria-selected=true] { color: #fff; background: var(--red); border-color: var(--red); }
.schedule-row { display: grid; grid-template-columns: 90px 1fr 110px; gap: 25px; padding: 23px 0; border-top: 1px solid var(--line); align-items: start; }
.schedule-row:last-child { border-bottom: 1px solid var(--line); }
.schedule-row h3 { font-size: 20px; margin: 0; }
.schedule-row p { font-size: 13px; color: var(--muted); margin: 7px 0 0; }
.schedule-row time { font-size: 13px; font-family: 'Space Grotesk', sans-serif; padding-top: 4px; color: var(--red); font-weight: 700; }
.tag { width: fit-content; font-size: 10px; padding: 6px 10px; border: 1px solid #aaa; justify-self: end; background: #fff; }
.judging { background: #fff; color: var(--ink); }
.judging .eyebrow::before { background: var(--yellow); }
.judging .body-copy, .judging .number, .judging .note { color: var(--muted); }
.criteria { display: grid; grid-template-columns: repeat(4, 1fr); gap: 35px; margin-top: 45px; }
.criterion { --category-color: var(--blue); border-top: 3px solid var(--category-color); padding: 20px 18px; background: #f0f5ff; }
.criterion:nth-child(2) { --category-color: var(--google-red); background: #fff2ef; }
.criterion:nth-child(3) { --category-color: var(--yellow); background: #fff9e6; }
.criterion:nth-child(4) { --category-color: var(--green); background: #eef7f0; }
.criterion .index { font-family: var(--display); font-size: 54px; font-weight: 700; color: var(--ink); display: block; margin-bottom: 30px; }
.criterion p { font-size: 14px; color: var(--muted); }
.team-callout { display: flex; align-items: center; justify-content: space-between; gap: 30px; margin-top: 50px; border: 1px solid var(--ink); border-left: 7px solid var(--red); padding: 28px; }
.team-callout h3 { margin: 0 0 4px; }
.team-callout p { margin: 0; font-size: 13px; color: var(--muted); }
details { border-top: 1px solid var(--line); }
details:last-child { border-bottom: 1px solid var(--line); }
summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; gap: 25px; align-items: center; padding: 23px 0; font-size: 17px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: '+'; font-size: 25px; font-weight: 400; color: var(--red); }
details[open] summary::after { content: '−'; }
details p { margin: 0 30px 24px 0; font-size: 14px; color: var(--muted); }
#sponsors { background: #f5f5f5; }
.sponsors-list { display: flex; gap: 30px; flex-wrap: wrap; padding: 30px 0; }
.sponsors-list a { font-family: 'Space Grotesk', sans-serif; font-size: 24px; }
.sponsors-list img { max-width: 160px; max-height: 65px; }
.partner-note { border-top: 1px solid var(--line); padding-top: 20px; font-size: 12px; color: var(--muted); }
/* The striped closing section is the footer, with a white reading surface. */
.footer { padding: 48px 28px; background: var(--stripes); color: var(--ink); }
.footer-sheet { background: #fff; padding: 46px 48px 22px; }
.footer-invitation { display: flex; align-items: center; justify-content: space-between; gap: 32px; padding-bottom: 38px; border-bottom: 1px solid var(--line); }
.footer-invitation h2 { margin: 14px 0 10px; }
.footer-invitation p { margin: 0; font-size: 14px; color: var(--muted); }
.footer-invitation .eyebrow { font-size: 11px; color: var(--red); }
.footer-main { display: flex; justify-content: space-between; gap: 35px; padding-top: 34px; }
.footer-gdg { display: flex; align-items: center; gap: 11px; margin-top: 23px; font-size: 12px; line-height: 1.6; }
.footer-gdg strong { font-weight: 500; color: var(--muted); }
.footer-links { display: grid; grid-template-columns: repeat(3, auto); align-content: start; gap: 22px 32px; font-size: 13px; }
.footer-links a { text-decoration: none; border-bottom: 2px solid var(--blue); padding-bottom: 6px; }
.footer-links a:nth-child(2) { border-color: var(--google-red); }
.footer-links a:nth-child(3) { border-color: var(--yellow); }
.footer-links a:nth-child(4) { border-color: var(--green); }
.footer-links a:hover { color: var(--red); }
.footer-bottom { border-top: 1px solid var(--line); margin-top: 32px; padding-top: 18px; display: flex; justify-content: space-between; gap: 20px; font-size: 10px; letter-spacing: .05em; text-transform: uppercase; color: var(--muted); }

/* Recurring overall stripes connect the sections without sitting behind text. */
#schedule, #sponsors { background: var(--stripes); padding: 32px 28px; border: 0; }
#schedule > .wrap, #sponsors > .wrap { background: #fff; width: min(1340px, 100%); padding: 60px 50px; }

/* Registration and directory share the same campus identity. */
.page { padding: 45px 0 85px; min-height: 65vh; position: relative; border-top: 24px solid transparent; border-image: repeating-linear-gradient(90deg, var(--red) 0 28px, #fff 28px 56px) 24; }
.page h1 { font: 800 clamp(52px, 6vw, 86px)/.95 var(--display); text-transform: uppercase; letter-spacing: -.015em; margin: 36px 0 20px; max-width: 900px; }
.page-lead { max-width: 620px; color: var(--muted); }
.page-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 70px; margin-top: 45px; }
.notice { border: 1px solid var(--ink); border-top: 6px solid var(--red); padding: 30px; background: #f7f7f7; }
.notice h2 { font-size: 36px; margin: 14px 0; }
.notice p { font-size: 14px; margin-bottom: 0; }
.form { margin-top: 30px; }
.form label { display: block; font-size: 13px; font-weight: 600; margin: 18px 0 8px; }
.form input, .search { width: 100%; border: 1px solid #999; background: #fff; border-radius: 0; padding: 13px; color: var(--ink); min-width: 0; }
.form fieldset { padding: 0 0 20px; margin: 28px 0; border: 0; border-top: 1px solid var(--line); }
.form legend { font-size: 12px; padding: 0 10px 0 0; text-transform: uppercase; letter-spacing: .08em; }
.member-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-actions { display: flex; flex-wrap: wrap; gap: 15px; align-items: center; margin: 25px 0; }
.remove { background: none; border: 0; text-decoration: underline; font-size: 12px; padding: 12px 0; color: var(--red); }
.status:not(:empty) { padding: 15px; border: 1px solid var(--ink); margin-top: 20px; font-size: 14px; }
.status.error { color: var(--red-dark); border-color: var(--red-dark); }
.aside { border-top: 3px solid var(--blue); padding-top: 22px; }
.aside li { font-size: 14px; line-height: 1.7; margin-bottom: 15px; }
.aside ul { padding-left: 18px; }
.countdown { font-family: 'Space Grotesk', sans-serif; font-size: 16px; margin-top: 18px; }
.team-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 25px; margin-top: 30px; }
.team-card { padding: 25px; border: 1px solid var(--line); border-top: 4px solid var(--red); overflow-wrap: anywhere; }
.team-card h2 { font-size: 34px; }
.team-card ul { padding-left: 18px; font-size: 14px; line-height: 1.8; }
.search { max-width: 500px; margin-top: 8px; }
.empty { padding: 45px 0; border-block: 1px solid var(--line); margin-top: 30px; }
.empty h2 { font-size: 38px; }
.hidden, [hidden] { display: none !important; }

@media (max-width: 1100px) {
  .wrap { width: calc(100% - 56px); }
  .hero { padding-inline: 18px; }
  .hero > .wrap { padding-inline: 28px; }
  .hero-grid { gap: 30px; }
  .hero h1 { font-size: 104px; }
  .navlinks { gap: 17px; font-size: 12px; }
  .navlinks .button { padding: 12px; }
  .brand { font-size: 20px; }
  .section-grid { gap: 40px; grid-template-columns: 1fr 1.5fr; }
  .criteria { gap: 22px; }
  .principles { gap: 18px; }
  .footer-links { max-width: 500px; }
}
@media (max-width: 760px) {
  .wrap { width: calc(100% - 40px); }
  .nav { min-height: 73px; }
  .menu-toggle { display: block; }
  .navlinks { display: none; position: absolute; top: 73px; left: 0; right: 0; background: #fff; border-bottom: 2px solid var(--red); padding: 18px 20px; flex-direction: column; align-items: stretch; gap: 0; }
  .navlinks.open { display: flex; }
  .navlinks a { padding: 13px; font-size: 15px; }
  .hero { padding-inline: 12px; --stripes: repeating-linear-gradient(90deg, var(--red) 0 20px, #fff 20px 40px); }
  .hero > .wrap { padding: 20px 18px 0; }
  .hero-top { padding-bottom: 17px; }
  .hero-top .eyebrow { font-size: 9px; letter-spacing: .03em; gap: 7px; line-height: 1.5; }
  .edition { display: none; }
  .hero-grid { grid-template-columns: 1fr; padding: 28px 0; gap: 28px; }
  .hero-kicker { font-size: 10px; margin-bottom: 17px; }
  .hero h1 { font-size: clamp(72px, 23vw, 126px); margin-bottom: 23px; }
  .hero-copy { font-size: 14px; max-width: 470px; }
  .hero-actions { gap: 20px; }
  .hero-actions .button { padding: 13px 16px; gap: 20px; }
  .hero-actions .text-link { font-size: 12px; }
  .art { width: min(440px, calc(100% - 12px)); margin: 4px auto 12px;  }
  .poster-bottom { font-size: 9px; padding: 11px 13px; }
  .event-strip { grid-template-columns: 1fr; gap: 18px; }
  .event-strip > div { gap: 14px; }
  .event-strip strong { font-size: 12px; }
  .event-strip small { font-size: 11px; }
  .section { padding: 62px 0; }
  .section-grid { grid-template-columns: 1fr; gap: 25px; }
  h2 { font-size: 37px; }
  .intro-large { font-size: 22px; margin-top: 0; }
  .principles { grid-template-columns: 1fr; margin-top: 28px; gap: 25px; }
  .principles article { display: grid; grid-template-columns: 1fr 1.5fr; gap: 25px; }
  .principles p { margin: 0; }
  .schedule-head { display: block; }
  .tabs button { padding: 12px 15px; font-size: 12px; }
  .schedule-row { grid-template-columns: 45px 1fr; gap: 15px; }
  .schedule-row .tag { display: none; }
  .schedule-row h3 { font-size: 18px; }
  .criteria { grid-template-columns: 1fr 1fr; gap: 30px; }
  .criterion .index { margin-bottom: 20px; }
  .team-callout { align-items: start; flex-direction: column; padding: 24px; }
  .footer-main { flex-direction: column; }
  .footer-links { gap: 20px; }
  .footer-bottom { font-size: 9px; }
  .page-grid { grid-template-columns: 1fr; gap: 35px; }
  .member-grid { grid-template-columns: 1fr; gap: 0; }
  .team-grid { grid-template-columns: 1fr; }
  .page h1 { font-size: 60px; }
  .notice { padding: 25px; }
}
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
  .button { transition: background .15s, color .15s; }
}

@media (max-width: 360px) {
  .nav { gap: 12px; }
  .brand { font-size: 18px; gap: 7px; }
  .brand svg { width: 31px; height: 31px; }
}

@media (max-width: 760px) {
  .hero h1 .hero-year { font-size: 28px; margin-left: 12px; }
  #schedule, #sponsors { padding: 22px 12px; }
  #schedule > .wrap, #sponsors > .wrap { padding: 36px 18px; }
  .footer { padding: 28px 12px; }
  .footer-sheet { width: 100%; padding: 30px 20px 20px; }
  .footer-invitation { align-items: start; flex-direction: column; gap: 22px; }
  .footer-main { flex-direction: column; }
  .footer-links { grid-template-columns: 1fr 1fr; gap: 20px; }
  .criterion { padding-inline: 12px; }
  .criteria { gap: 18px; }
}
