/* Gilgamesh Ventures Summit 2026 — landing page */

:root {
  --cream: #FDFAF3;
  --ink: #2A0D63;
  --purple: #3F178E;
  --lavender: #8E6FD1;
  --lavender-soft: #A087D6;
  --lavender-pale: #C9B8EE;
  --mist: #D9CFF0;
  --tint: #F4EFFA;
  --line: #E7E0F2;
  --line-strong: #CFC2EA;
  --serif: 'Cormorant Garamond', serif;
  --sans: Lato, sans-serif;
  --gutter: clamp(20px, 4vw, 48px);
}

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

html, body {
  margin: 0;
  font-variant-numeric: lining-nums;
  background: var(--cream);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}

body { min-height: 100vh; font-family: var(--sans); }

a { color: var(--purple); text-decoration: none; }
a:hover { color: var(--lavender); }

h1, h2, h3, p, dl, dd, ol { margin: 0; }
ol { padding: 0; list-style: none; }
img { display: block; }

.container { max-width: 1200px; margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }

.eyebrow { font-size: 12px; letter-spacing: .32em; text-transform: uppercase; color: var(--lavender); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-size: 13px;
  letter-spacing: .24em;
  text-transform: uppercase;
  white-space: nowrap;
}
.btn--solid { background: var(--purple); color: var(--cream); padding: 18px 24px; }
.btn--solid:hover { background: var(--ink); color: var(--cream); }
.btn--outline { border: 1.5px solid var(--purple); color: var(--purple); padding: 18px 24px; }
.btn--outline:hover { background: var(--purple); color: var(--cream); }
.btn--light { background: var(--cream); color: var(--purple); padding: 20px 28px; }
.btn--light:hover { background: #E7DEF7; color: var(--ink); }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(253, 250, 243, .94);
  border-bottom: 1px solid var(--line);
}
.site-header__inner {
  padding-top: 16px;
  padding-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.site-header__logo { display: flex; }
.site-header__logo img { height: clamp(26px, 7vw, 34px); width: auto; }
.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(16px, 3vw, 36px);
  font-size: 12px;
  letter-spacing: .24em;
  text-transform: uppercase;
}
.site-nav__link { color: var(--ink); }
.btn-register { color: var(--cream); background: var(--purple); padding: 12px 16px; white-space: nowrap; }
.btn-register:hover { background: var(--ink); color: var(--cream); }

/* Hero */
.hero { position: relative; overflow: hidden; }
.hero__inner {
  position: relative;
  z-index: 1;
  padding-top: clamp(56px, 9vw, 120px);
}
.hero__eyebrow { margin-bottom: 28px; }
.hero__title {
  font-family: var(--serif);
  font-weight: 600;
  text-transform: uppercase;
  line-height: .9;
  letter-spacing: -.01em;
  font-size: clamp(40px, 12.4vw, 156px);
}
.hero__title span { display: block; color: var(--ink); }
.hero__title .hero__title-accent { color: var(--lavender-soft); font-weight: 500; }
.hero__rule {
  height: 2px;
  background: var(--purple);
  max-width: 640px;
  margin: clamp(24px, 5vw, 40px) 0 clamp(20px, 4vw, 28px);
}
.hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
}
.hero__details {
  font-size: clamp(12px, 1.6vw, 18px);
  letter-spacing: clamp(1.5px, .45vw, 6.5px);
  text-transform: uppercase;
  line-height: 2;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  flex: 1 1 280px;
  justify-content: flex-end;
  max-width: 560px;
}
.hero__cta { flex: 1 1 240px; }
.hero__cta-secondary { flex: 1 1 180px; }

.countdown { display: flex; gap: clamp(18px, 4vw, 48px); margin-top: clamp(32px, 5vw, 48px); }
.countdown[hidden] { display: none; }
.countdown__unit { display: flex; flex-direction: column; gap: 6px; }
.countdown__value {
  font-family: var(--serif);
  font-size: clamp(36px, 5vw, 56px);
  line-height: 1;
  font-weight: 500;
  font-variant-numeric: lining-nums tabular-nums;
}
.countdown__label { font-size: 11px; letter-spacing: .3em; text-transform: uppercase; color: var(--lavender); }

.hero__skyline {
  width: 100%;
  height: auto;
  margin-top: clamp(-140px, calc(70px - 18vw), 0px);
}

/* Sponsors */
.sponsors { background: var(--cream); border-bottom: 1px solid var(--line); }
.sponsors__inner {
  padding: clamp(24px, 4vw, 28px) clamp(20px, 4vw, 64px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(16px, 3vw, 20px);
}
.sponsors__heading { font-size: 14px; letter-spacing: .32em; text-transform: uppercase; color: var(--ink); }
.sponsors__grid {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(96px, 1fr));
  align-items: start;
  justify-items: center;
  gap: 20px 12px;
}
.sponsor { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.sponsor__logo {
  width: 100%;
  max-width: 160px;
  height: clamp(34px, 9vw, 56px);
  display: flex;
  align-items: center;
  justify-content: center;
}
.sponsor__logo img { max-width: 100%; max-height: 100%; }
.sponsor__tier { font-size: 10px; letter-spacing: .2em; text-transform: uppercase; color: var(--lavender); white-space: nowrap; }

/* Intro */
.intro { background: var(--ink); color: var(--cream); }
.intro__inner {
  padding-top: clamp(64px, 8vw, 104px);
  padding-bottom: clamp(64px, 8vw, 104px);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr));
  gap: 48px;
  align-items: end;
}
.intro__lead {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(30px, 3.6vw, 48px);
  line-height: 1.12;
  text-wrap: pretty;
}
.intro__body { font-size: 17px; line-height: 1.65; color: var(--mist); max-width: 460px; text-wrap: pretty; }

/* Agenda */
.agenda { scroll-margin-top: 72px; }
.agenda__inner { padding-top: clamp(72px, 9vw, 120px); padding-bottom: clamp(72px, 9vw, 120px); }
.agenda__head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 24px; }
.agenda__title {
  font-family: var(--serif);
  font-weight: 600;
  text-transform: uppercase;
  font-size: clamp(56px, 9vw, 120px);
  line-height: .9;
}
.agenda__filters { display: flex; gap: 4px; border: 1.5px solid var(--purple); padding: 4px; max-width: 100%; }
.agenda__filter {
  font: inherit;
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  padding: 10px clamp(10px, 2.5vw, 16px);
  border: 0;
  cursor: pointer;
  background: transparent;
  color: var(--purple);
}
.agenda__filter.is-active { background: var(--purple); color: var(--cream); }
.agenda__rule { height: 2px; background: var(--purple); margin: 28px 0 20px; }
.agenda__date {
  font-size: clamp(12px, 1.5vw, 18px);
  letter-spacing: clamp(2px, .5vw, 6.5px);
  text-transform: uppercase;
  line-height: 2;
  margin-bottom: clamp(28px, 5vw, 48px);
}
.agenda__city { color: var(--lavender-soft); }

.timeline { display: flex; flex-direction: column; }

/* Desktop slot: time | rail | body */
.slot {
  --rail-offset: 32px;
  display: grid;
  grid-template-columns: clamp(72px, 18vw, 220px) 32px minmax(0, 1fr);
  grid-template-areas: "time rail body";
  column-gap: clamp(12px, 3vw, 40px);
  align-items: stretch;
}
.slot[hidden] { display: none; }
.slot:hover { background: var(--tint); }
.slot__time {
  grid-area: time;
  padding: 22px 0 22px 8px;
  font-size: clamp(11px, 1.2vw, 14px);
  letter-spacing: .2em;
  line-height: 1.6;
  font-variant-numeric: lining-nums tabular-nums;
  color: var(--ink);
}
.slot__rail { grid-area: rail; position: relative; display: flex; justify-content: center; }
.slot__line {
  position: absolute;
  left: 50%;
  width: 2px;
  margin-left: -1px;
  background: var(--purple);
  top: 0;
  bottom: 0;
}
.slot.is-first .slot__line { top: var(--rail-offset); }
.slot.is-last .slot__line { bottom: calc(100% - var(--rail-offset)); }
.slot__dot {
  position: relative;
  margin-top: 26px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--purple);
  border: 2px solid var(--purple);
}
.slot--pre .slot__dot { background: var(--cream); }
.slot__body { grid-area: body; padding: 14px 8px 22px 0; display: flex; flex-direction: column; gap: 6px; }
.slot__title { font-family: var(--serif); font-weight: 500; font-size: clamp(24px, 2.8vw, 36px); line-height: 1.1; }
.slot__note { font-size: 12px; letter-spacing: .2em; text-transform: uppercase; color: var(--lavender); overflow-wrap: anywhere; }

/* Venue */
.venue { background: var(--tint); scroll-margin-top: 72px; }
.venue__inner {
  padding-top: clamp(72px, 9vw, 120px);
  padding-bottom: clamp(72px, 9vw, 120px);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 56px;
}
.venue__eyebrow { margin-bottom: 20px; }
.venue__title { margin-bottom: 24px; font-family: var(--serif); font-weight: 600; font-size: clamp(36px, 5vw, 64px); line-height: 1; }
.venue__map { font-size: 13px; letter-spacing: .24em; text-transform: uppercase; border-bottom: 1.5px solid currentColor; padding-bottom: 4px; }

.facts { display: flex; flex-direction: column; }
.facts__row {
  display: grid;
  grid-template-columns: clamp(72px, 20vw, 120px) minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid var(--line-strong);
}
.facts__row:last-child { border-bottom: 1px solid var(--line-strong); }
.facts dt { font-size: 12px; letter-spacing: .26em; text-transform: uppercase; color: var(--lavender); }
.facts dd { font-size: 17px; }
.hosts { display: flex; flex-direction: column; gap: 10px; }
.host { display: inline-flex; align-items: center; gap: 10px; font-size: 17px; color: var(--ink); }
.host:hover { color: var(--lavender); }
.host__icon { display: block; flex: none; opacity: .75; }

/* Closing + footer */
.closing { background: var(--purple); color: var(--cream); }
.closing__inner {
  padding-top: clamp(72px, 9vw, 112px);
  padding-bottom: clamp(72px, 9vw, 112px);
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
}
.closing__title {
  font-family: var(--serif);
  font-weight: 600;
  text-transform: uppercase;
  font-size: clamp(44px, 7vw, 96px);
  line-height: .92;
}
.closing__title-accent { color: var(--lavender-pale); font-weight: 500; }
.closing__cta { flex: 0 1 auto; }

.site-footer { border-top: 1px solid rgba(253, 250, 243, .2); }
.site-footer__inner {
  padding-top: 28px;
  padding-bottom: 28px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  font-size: 13px;
  color: var(--mist);
}
.site-footer__logo { height: 30px; width: auto; filter: brightness(0) invert(1); }
.site-footer__city { letter-spacing: .2em; text-transform: uppercase; font-size: 11px; }

/* Phones: hide section links; agenda stacks time above title with a narrow rail */
@media (max-width: 599.98px) {
  .site-nav__link { display: none; }

  .slot {
    --rail-offset: 25px;
    grid-template-columns: 20px minmax(0, 1fr);
    grid-template-areas: "rail time" "rail body";
    grid-template-rows: auto 1fr;
    column-gap: 16px;
  }
  .slot:hover { background: none; }
  .slot__time {
    padding: 14px 0 0;
    font-size: 11px;
    letter-spacing: .16em;
    line-height: 1.6;
  }
  .slot__dot { margin-top: 19px; width: 12px; height: 12px; }
  .slot__body { padding: 6px 0 20px; }
  .slot__title { font-size: 26px; }
  .slot__note { font-size: 11px; letter-spacing: .16em; line-height: 1.5; overflow-wrap: normal; }
}