/* ============================================================
   OPEN Forum 2026 — Brand Stylesheet
   Palette sampled from the OPEN Silicon Valley deck:
   deep forest green · gold · cream
   ============================================================ */

:root {
  /* Greens */
  --green-950: #0a2016;
  --green-900: #0e2a1d;
  --green-850: #123425;
  --green-800: #163f2d;
  --green-750: #1a4a34;
  --green-700: #205740;

  /* Gold */
  --gold:        #c9a45c;
  --gold-soft:   #d8bd7e;
  --gold-bright: #ebd193;
  --gold-deep:   #a9843f;

  /* Neutrals */
  --cream:     #f4efe1;
  --cream-dim: #cfc9b8;
  --muted:     #9fb0a4;

  /* Lines / surfaces */
  --line:        rgba(201, 164, 92, 0.28);
  --line-soft:   rgba(201, 164, 92, 0.16);
  --surface:     rgba(255, 255, 255, 0.03);
  --surface-2:   rgba(255, 255, 255, 0.05);

  /* Type */
  --serif: "Playfair Display", Georgia, "Times New Roman", serif;
  --sans: "Mulish", "Segoe UI", system-ui, -apple-system, sans-serif;

  /* Layout */
  --maxw: 1200px;
  --radius: 18px;
  --radius-sm: 12px;

  --shadow: 0 24px 60px -24px rgba(0, 0, 0, 0.65);

  /* Motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Reset ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }

body {
  font-family: var(--sans);
  color: var(--cream);
  background: var(--green-900);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* faint blueprint grid, like the deck slides */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px) 0 0 / 80px 80px,
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px) 0 0 / 80px 80px,
    radial-gradient(1200px 800px at 78% -10%, rgba(32, 87, 64, 0.55), transparent 60%),
    linear-gradient(180deg, var(--green-950), var(--green-900) 40%, var(--green-850));
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ---------- Layout helpers ---------- */
.container { width: min(100% - 44px, var(--maxw)); margin-inline: auto; }
.section { padding: clamp(64px, 9vw, 128px) 0; position: relative; }
.section--tight { padding: clamp(48px, 6vw, 84px) 0; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 20px;
}
.eyebrow::before {
  content: "";
  width: 34px;
  height: 2px;
  background: var(--gold);
}

h1, h2, h3 { font-family: var(--serif); font-weight: 700; line-height: 1.08; }

.h-section {
  font-size: clamp(2rem, 4.6vw, 3.4rem);
  letter-spacing: -0.01em;
}
.h-section .accent { color: var(--gold); font-style: italic; }

.lead {
  color: var(--cream-dim);
  font-size: clamp(1rem, 1.4vw, 1.14rem);
  max-width: 60ch;
}

/* ---------- Buttons ---------- */
.btn {
  --bg: var(--gold);
  --fg: #21160a;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: 999px;
  font-family: var(--sans);
  font-weight: 800;
  font-size: 0.92rem;
  letter-spacing: 0.02em;
  color: var(--fg);
  background: var(--bg);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease),
    background 0.25s var(--ease), color 0.25s var(--ease);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 14px 30px -12px rgba(201, 164, 92, 0.55); }
.btn--ghost {
  --bg: transparent;
  --fg: var(--cream);
  border-color: var(--line);
}
.btn--ghost:hover { background: var(--surface-2); border-color: var(--gold); box-shadow: none; }
.btn--lg { padding: 16px 32px; font-size: 1rem; }

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease), backdrop-filter 0.3s;
  border-bottom: 1px solid transparent;
}
.nav.is-stuck {
  background: rgba(10, 32, 22, 0.82);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--line-soft);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 74px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand__mark { width: 42px; height: 30px; }
.brand__text { display: flex; flex-direction: column; line-height: 1; }
.brand__text b { font-family: var(--serif); font-size: 1.12rem; letter-spacing: 0.04em; }
.brand__text span { font-size: 0.62rem; letter-spacing: 0.34em; color: var(--gold); text-transform: uppercase; margin-top: 3px; }

.nav__links { display: flex; align-items: center; gap: 30px; }
.nav__links a {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--cream-dim);
  position: relative;
  transition: color 0.2s;
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -6px;
  width: 0; height: 2px;
  background: var(--gold);
  transition: width 0.25s var(--ease);
}
.nav__links a:hover { color: var(--cream); }
.nav__links a:hover::after { width: 100%; }

.nav__cta { display: flex; align-items: center; gap: 12px; }
.nav__cta .btn { white-space: nowrap; }

/* mobile-only menu links (hidden on desktop, revealed in the open menu) */
.nav__m { display: none; }

.nav__toggle {
  display: none;
  width: 44px; height: 44px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: transparent;
  cursor: pointer;
  color: var(--cream);
}
.nav__toggle span, .nav__toggle span::before, .nav__toggle span::after {
  content: ""; display: block; width: 20px; height: 2px; background: currentColor; margin: 0 auto;
  transition: transform 0.3s var(--ease), opacity 0.2s;
}
.nav__toggle span::before { transform: translateY(-6px); }
.nav__toggle span::after { transform: translateY(4px); }
.nav.is-open .nav__toggle span { background: transparent; }
.nav.is-open .nav__toggle span::before { transform: rotate(45deg); }
.nav.is-open .nav__toggle span::after { transform: rotate(-45deg) translateY(-1.4px); }

/* ============================================================
   HERO
   ============================================================ */
.hero { position: relative; padding-top: 150px; padding-bottom: 90px; overflow: hidden; }
.hero__glow {
  position: absolute; z-index: -1;
  width: 620px; height: 620px; border-radius: 50%;
  right: -180px; top: -160px;
  background: radial-gradient(circle, rgba(201, 164, 92, 0.18), transparent 62%);
  filter: blur(10px);
}
.hero__ring {
  position: absolute; right: 6%; top: 120px; z-index: -1;
  width: 340px; height: 340px; border-radius: 50%;
  border: 1px solid var(--line-soft);
}

.hero__badge {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 8px 16px; border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface);
  font-size: 0.78rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--gold-soft);
  margin-bottom: 26px;
}
.hero__badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 0 4px rgba(201,164,92,0.2); }

.hero h1 {
  font-size: clamp(2.6rem, 8vw, 6rem);
  letter-spacing: -0.02em;
  margin-bottom: 8px;
  overflow-wrap: break-word;
}
.hero h1 .yr { color: var(--gold); }
.hero__tag {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.3rem, 2.6vw, 1.9rem);
  color: var(--cream);
  margin-bottom: 18px;
}
.hero__sub { max-width: 54ch; color: var(--cream-dim); font-size: 1.08rem; margin-bottom: 30px; }

.hero__meta { display: flex; flex-wrap: wrap; gap: 14px 28px; margin-bottom: 34px; }
.hero__meta div { display: flex; align-items: center; gap: 10px; font-weight: 700; }
.hero__meta svg { width: 20px; height: 20px; color: var(--gold); flex: none; }
.hero__meta span { color: var(--cream); }

.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 46px; }

/* Countdown */
.countdown { display: flex; gap: 14px; flex-wrap: wrap; }
.countdown__unit {
  min-width: 96px;
  padding: 18px 10px;
  text-align: center;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: linear-gradient(180deg, var(--surface-2), transparent);
}
.countdown__num { font-family: var(--serif); font-size: clamp(1.8rem, 3.4vw, 2.6rem); color: var(--gold-bright); line-height: 1; }
.countdown__label { font-size: 0.68rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--muted); margin-top: 8px; }

/* Hero stat strip */
.statstrip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-top: 64px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--line-soft);
}
.statstrip__item { background: var(--green-850); padding: 26px 20px; text-align: center; }
.statstrip__num { font-family: var(--serif); font-size: clamp(1.7rem, 3vw, 2.3rem); color: var(--gold-bright); }
.statstrip__label { font-size: 0.76rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--cream-dim); margin-top: 4px; }

/* ============================================================
   ABOUT / STATS CARDS
   ============================================================ */
.about__grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(36px, 6vw, 80px); align-items: center; }
.statcards { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.statcard {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 30px 26px;
  background: linear-gradient(180deg, var(--surface-2), transparent);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease);
}
.statcard:hover { transform: translateY(-4px); border-color: var(--line); }
.statcard__num { font-family: var(--serif); font-size: clamp(2.4rem, 4.6vw, 3.2rem); color: var(--gold-bright); line-height: 1; }
.statcard__label { color: var(--cream-dim); font-size: 0.92rem; letter-spacing: 0.06em; margin-top: 10px; text-transform: uppercase; }

/* ============================================================
   MEMBERS / NETWORK
   ============================================================ */
.cardgrid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-top: 52px; }
.netcard {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 34px 32px;
  background: linear-gradient(180deg, var(--surface-2), transparent);
  position: relative;
  overflow: hidden;
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease);
}
.netcard::before {
  content: "";
  position: absolute; left: 32px; top: 30px;
  width: 46px; height: 3px; background: var(--gold);
}
.netcard:hover { transform: translateY(-4px); border-color: var(--line); }
.netcard h3 { font-size: 1.5rem; margin: 26px 0 12px; }
.netcard p { color: var(--cream-dim); }

.netbar {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--green-850);
}
.netbar__cell { padding: 26px; text-align: center; border-right: 1px solid var(--line-soft); }
.netbar__cell:last-child { border-right: 0; }
.netbar__num { font-family: var(--serif); font-weight: 700; font-size: 1.7rem; color: var(--gold-bright); }
.netbar__label { color: var(--cream-dim); font-size: 0.9rem; margin-top: 4px; }

/* ============================================================
   SPEAKERS
   ============================================================ */
.speaker-group + .speaker-group { margin-top: 56px; }
.speaker-group__title {
  font-size: 0.76rem; letter-spacing: 0.26em; text-transform: uppercase;
  color: var(--gold); font-weight: 800; margin-bottom: 24px;
  display: flex; align-items: center; gap: 16px;
}
.speaker-group__title::after { content: ""; flex: 1; height: 1px; background: var(--line-soft); }

.speakers { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.speaker {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 30px 22px;
  text-align: center;
  background: linear-gradient(180deg, var(--surface-2), transparent);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease);
}
.speaker:hover { transform: translateY(-5px); border-color: var(--gold); }
.avatar {
  width: 116px; height: 116px; border-radius: 50%;
  margin: 0 auto 20px;
  display: grid; place-items: center;
  font-family: var(--serif); font-size: 2rem; color: var(--green-900);
  background: linear-gradient(150deg, var(--gold-bright), var(--gold-deep));
  border: 3px solid rgba(255,255,255,0.14);
  box-shadow: var(--shadow);
  overflow: hidden;
  background-size: cover;
  background-position: center;
}
.speaker h3 { font-size: 1.24rem; }
.speaker__role { color: var(--cream-dim); font-size: 0.9rem; margin-top: 6px; }
.speaker__org { color: var(--gold-soft); font-weight: 800; font-size: 0.92rem; margin-top: 8px; }

/* ============================================================
   WHY / VALUE
   ============================================================ */
.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 52px; }
.value { padding: 32px 28px; border: 1px solid var(--line-soft); border-radius: var(--radius); background: var(--surface); }
.value__ico { width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; background: rgba(201,164,92,0.14); color: var(--gold-bright); margin-bottom: 18px; }
.value__ico svg { width: 26px; height: 26px; }
.value h3 { font-size: 1.28rem; margin-bottom: 10px; }
.value p { color: var(--cream-dim); }

/* ============================================================
   SPONSORS
   ============================================================ */
.sponsors__tier + .sponsors__tier { margin-top: 34px; }
.sponsors__tier h4 { font-family: var(--sans); font-size: 0.76rem; letter-spacing: 0.24em; text-transform: uppercase; color: var(--gold); text-align: center; margin-bottom: 18px; }
.logos { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; }
.logo {
  height: 74px; min-width: 180px;
  display: grid; place-items: center;
  padding: 0 26px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  color: var(--cream-dim);
  font-weight: 800; letter-spacing: 0.04em;
  transition: border-color 0.25s, color 0.25s;
}
.logo:hover { border-color: var(--gold); color: var(--cream); }
.logo--sm { height: 60px; min-width: 150px; font-size: 0.9rem; }

/* ============================================================
   TICKETS
   ============================================================ */
.tickets-wrap { margin-top: 52px; display: grid; gap: 52px; }
.ticket-group__label {
  display: flex; align-items: center; justify-content: center; gap: 18px;
  font-family: var(--serif); font-size: clamp(1.4rem, 2.6vw, 1.9rem); color: var(--cream);
  margin-bottom: 34px; text-align: center;
}
.ticket-group__label::before, .ticket-group__label::after { content: ""; width: 46px; height: 2px; background: var(--gold); }

.tickets { display: grid; gap: 22px; }
.tickets--3 { grid-template-columns: repeat(3, 1fr); }
.tickets--2 { grid-template-columns: repeat(2, 1fr); max-width: 840px; margin-inline: auto; }

.ticket {
  position: relative;
  display: flex; flex-direction: column;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 34px 30px;
  background: linear-gradient(180deg, var(--surface-2), transparent);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease);
}
.ticket:hover { transform: translateY(-5px); border-color: var(--line); }
.ticket--featured {
  border-color: var(--gold);
  background: linear-gradient(180deg, rgba(201,164,92,0.14), transparent);
  box-shadow: var(--shadow);
}
.ticket__badge {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  font-size: 0.68rem; letter-spacing: 0.18em; text-transform: uppercase; font-weight: 800;
  color: var(--green-900); background: var(--gold);
  padding: 6px 16px; border-radius: 999px; white-space: nowrap;
  box-shadow: 0 10px 20px -8px rgba(0, 0, 0, 0.65);
}
.ticket h3 { font-family: var(--sans); font-weight: 800; font-size: 1.18rem; letter-spacing: 0.01em; color: var(--cream); }
.ticket__price { font-family: var(--serif); font-size: 2.7rem; color: var(--gold-bright); margin: 12px 0 22px; line-height: 1; }
.ticket ul { display: grid; gap: 13px; margin: 0 0 24px; }
.ticket li { display: flex; gap: 10px; color: var(--cream-dim); font-size: 0.95rem; line-height: 1.45; }
.ticket li svg { width: 18px; height: 18px; color: var(--gold); flex: none; margin-top: 3px; }
.ticket__foot {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  margin-top: auto; margin-bottom: 22px; padding-top: 18px;
  border-top: 1px solid var(--line-soft);
}
.ticket__sales { display: inline-flex; align-items: center; gap: 8px; color: var(--cream-dim); font-size: 0.86rem; }
.ticket__sales svg { width: 16px; height: 16px; color: var(--gold); flex: none; }
.ticket__status {
  font-size: 0.64rem; letter-spacing: 0.14em; text-transform: uppercase; font-weight: 800;
  padding: 4px 11px; border-radius: 999px; white-space: nowrap;
  color: var(--gold-bright); border: 1px solid var(--line); background: rgba(201, 164, 92, 0.12);
}
.ticket__status--ended { color: var(--muted); border-color: var(--line-soft); background: rgba(255, 255, 255, 0.04); }
.ticket .btn { width: 100%; }

/* ============================================================
   CTA / SAVE THE DATE BANNER
   ============================================================ */
.cta-band { position: relative; overflow: hidden; }
.cta-band__inner {
  border: 1px solid var(--line);
  border-radius: 26px;
  padding: clamp(40px, 6vw, 72px);
  text-align: center;
  background:
    radial-gradient(600px 300px at 50% -30%, rgba(201,164,92,0.18), transparent 70%),
    linear-gradient(180deg, var(--green-800), var(--green-850));
}
.cta-band h2 { font-size: clamp(2rem, 4.4vw, 3.2rem); margin-bottom: 14px; }
.cta-band p { color: var(--cream-dim); max-width: 56ch; margin: 0 auto 30px; }
.cta-band .diamond { color: var(--gold); letter-spacing: 0.4em; margin-bottom: 18px; }
.cta-band__actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer { border-top: 1px solid var(--line-soft); padding: 64px 0 34px; margin-top: 40px; }
.footer__top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 36px; }
.footer__brand p { color: var(--cream-dim); max-width: 34ch; margin-top: 18px; }
.footer h5 { font-family: var(--sans); font-size: 0.78rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gold); margin-bottom: 18px; }
.footer li { margin-bottom: 12px; }
.footer li a { color: var(--cream-dim); transition: color 0.2s; }
.footer li a:hover { color: var(--cream); }
.footer__socials { display: flex; gap: 12px; margin-top: 20px; }
.footer__socials a {
  width: 40px; height: 40px; border-radius: 50%;
  display: grid; place-items: center;
  border: 1px solid var(--line-soft); color: var(--cream-dim);
  transition: border-color 0.25s, color 0.25s, transform 0.25s;
}
.footer__socials a:hover { border-color: var(--gold); color: var(--gold); transform: translateY(-2px); }
.footer__socials svg { width: 18px; height: 18px; }
.footer__bottom {
  margin-top: 48px; padding-top: 24px;
  border-top: 1px solid var(--line-soft);
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  color: var(--muted); font-size: 0.85rem;
}

/* ============================================================
   OPEN GLOBAL BAND
   ============================================================ */
.global {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
  border: 1px solid var(--line-soft);
  border-radius: 26px;
  padding: clamp(32px, 5vw, 56px);
  background:
    radial-gradient(500px 260px at 90% -20%, rgba(201,164,92,0.14), transparent 70%),
    linear-gradient(180deg, var(--surface-2), transparent);
}
.global__intro h3 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin: 14px 0 12px; }
.global__intro p { color: var(--cream-dim); max-width: 42ch; }
.global__stats { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.global__stats > div { border-left: 2px solid var(--line); padding-left: 18px; }
.global__stats b { display: block; font-family: var(--serif); font-size: clamp(1.9rem, 3.4vw, 2.5rem); color: var(--gold-bright); }
.global__stats span { color: var(--cream-dim); font-size: 0.9rem; letter-spacing: 0.04em; }

/* ============================================================
   REVEAL ANIMATION
   ============================================================ */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 980px) {
  .nav__links, .hide-sm { display: none; }
  .nav__toggle { display: grid; place-items: center; }
  .nav__cta { gap: 10px; }
  .nav__cta .btn { padding: 11px 18px; font-size: 0.85rem; }
  .nav.is-open .nav__links {
    display: flex; flex-direction: column; align-items: flex-start; gap: 4px;
    position: absolute; top: 74px; left: 0; right: 0;
    background: rgba(10, 32, 22, 0.98);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line-soft);
    padding: 14px 22px 22px;
    max-height: calc(100vh - 74px);
    overflow-y: auto;
  }
  .nav.is-open .nav__links a { width: 100%; padding: 13px 0; border-bottom: 1px solid var(--line-soft); }
  .nav.is-open .nav__links .nav__m { display: block; }
  .nav.is-open .nav__links .nav__m--cta {
    color: var(--gold-bright); font-weight: 800; border-bottom: 0;
  }

  .about__grid { grid-template-columns: 1fr; }
  .speakers { grid-template-columns: repeat(2, 1fr); }
  .values { grid-template-columns: 1fr; }
  .tickets--2, .tickets--3 { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr 1fr; }
  .statstrip { grid-template-columns: 1fr 1fr; }
  .global { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .cardgrid { grid-template-columns: 1fr; }
  .statcards { grid-template-columns: 1fr; }
  .speakers { grid-template-columns: 1fr; }
  .netbar { grid-template-columns: 1fr; }
  .netbar__cell { border-right: 0; border-bottom: 1px solid var(--line-soft); }
  .netbar__cell:last-child { border-bottom: 0; }
  .footer__top { grid-template-columns: 1fr; }
  .hero { padding-top: 118px; }
  .hero__actions { flex-direction: column; align-items: stretch; }
  .hero__ring { display: none; }
  .countdown { gap: 8px; }
  .countdown__unit { min-width: 0; flex: 1; padding: 16px 6px; }
  .statstrip__item { padding: 20px 12px; }
  .global__stats { grid-template-columns: 1fr; }
  .ticket-group__label::before, .ticket-group__label::after { width: 28px; }
}

@media (max-width: 400px) {
  :root { --radius: 14px; }
  .container { width: min(100% - 32px, var(--maxw)); }
  .brand__text span { display: none; }
  .nav__cta .btn { padding: 10px 14px; font-size: 0.8rem; }
  .hero h1 { font-size: clamp(2.3rem, 12vw, 3rem); }
  .statstrip { grid-template-columns: 1fr 1fr; }
  .countdown__num { font-size: 1.5rem; }
  .countdown__label { font-size: 0.6rem; letter-spacing: 0.14em; }
}