/* ============================================================
   Regenerative Symposium · Bratislava 2026
   Cryo-field system — designed as an editorial poster with a page.
   ============================================================ */

:root {
  /* Palette — cryo-EM microscopy, not the AI-cream default */
  --field:      #0A2529;   /* deep cryo cyan-black */
  --field-2:    #0F323A;   /* elevated surface */
  --field-3:    #16454E;   /* hover, tag */
  --paper:      #F1EDE4;   /* warm paper */
  --paper-2:    #E8E1CE;   /* elevated paper */
  --paper-3:    #DED5BC;   /* deepest paper */
  --ink:        #0E1720;
  --ink-2:      #3A4652;
  --ink-3:      #6A7580;
  --copper:     #C8873F;   /* uranyl-acetate stain, single accent */
  --copper-2:   #E0A560;
  --membrane:   #E9B5A7;   /* used exactly once — hero ambient bloom */

  --hair-d:  rgba(241, 237, 228, .12);
  --hair-l:  rgba(14, 23, 32, .10);

  /* Type stack — off the Fraunces trend */
  --serif: 'Newsreader', 'Iowan Old Style', 'Palatino Linotype', Georgia, serif;
  --sans:  'Inter', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
  --mono:  'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  --wrap: 1360px;
  --pad: clamp(24px, 5vw, 72px);

  --ease: cubic-bezier(.2,.7,.2,1);
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 4px; text-decoration-thickness: 1px; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
::selection { background: var(--copper); color: var(--paper); }

.wrap { max-width: var(--wrap); margin: 0 auto; padding-inline: var(--pad); }

/* ============================================================
   TYPE — display uses Newsreader's optical sizing (opsz 6..72)
   ============================================================ */
.display {
  font-family: var(--serif);
  font-variation-settings: "opsz" 60;
  font-weight: 300;
  font-size: clamp(40px, 6.6vw, 96px);
  line-height: 0.98;
  letter-spacing: -0.025em;
  margin: 0 0 40px;
  color: var(--paper);
  text-wrap: balance;
}
.display em {
  font-style: italic;
  font-weight: 300;
  color: var(--copper-2);
  font-variation-settings: "opsz" 72;
}

.h2 {
  font-family: var(--serif);
  font-variation-settings: "opsz" 48;
  font-weight: 300;
  font-size: clamp(40px, 6vw, 88px);
  line-height: 0.98;
  letter-spacing: -0.025em;
  margin: 0 0 32px;
  text-wrap: balance;
}
.h2 em { font-style: italic; font-weight: 300; color: var(--copper); }
.h2--light { color: var(--paper); }
.h2--light em { color: var(--copper-2); }

.lede {
  font-family: var(--serif);
  font-variation-settings: "opsz" 20;
  font-weight: 400;
  font-size: clamp(19px, 1.9vw, 24px);
  line-height: 1.45;
  letter-spacing: -0.005em;
  color: var(--ink-2);
  max-width: 58ch;
  margin: 0 0 40px;
}
.lede--light { color: rgba(241, 237, 228, .78); }

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
  color: var(--paper);
  transition: background .3s var(--ease), border-color .3s var(--ease), color .3s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled { background: rgba(10, 37, 41, .72); backdrop-filter: saturate(140%) blur(14px); -webkit-backdrop-filter: saturate(140%) blur(14px); }
.site-header.is-inverted {
  background: rgba(241, 237, 228, .88);
  color: var(--ink);
  border-bottom-color: var(--hair-l);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--serif);
  font-variation-settings: "opsz" 20;
  font-size: 20px;
  letter-spacing: -0.01em;
  color: inherit;
}
.brand:hover { text-decoration: none; }
.brand em { font-style: italic; font-weight: 400; }
.brand__mark { width: 22px; height: 22px; color: var(--copper-2); flex-shrink: 0; }
.brand__mark--dark { color: var(--copper); }
.site-header.is-inverted .brand__mark { color: var(--copper); }

.nav {
  display: flex;
  gap: clamp(20px, 3vw, 36px);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  opacity: .82;
}
.nav a { transition: opacity .18s ease; }
.nav a:hover { opacity: 1; text-decoration: none; }

.header-actions { display: flex; align-items: center; gap: 12px; }
.menu-toggle { display: none; padding: 10px; color: inherit; }
.menu-toggle svg { width: 24px; height: 24px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: transform .18s var(--ease), background .18s ease, color .18s ease, border-color .18s ease;
  white-space: nowrap;
  border: 1px solid transparent;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn svg { width: 14px; height: 14px; stroke-linecap: round; stroke-linejoin: round; }

.btn--primary {
  background: var(--copper);
  color: var(--field);
  border-color: var(--copper);
}
.btn--primary:hover { background: var(--copper-2); border-color: var(--copper-2); }

.btn--ghost {
  color: var(--ink);
  border-color: var(--hair-l);
  background: transparent;
}
.btn--ghost:hover { border-color: var(--ink); }
.btn--ghost-light {
  color: var(--paper);
  border-color: var(--hair-d);
  background: transparent;
}
.btn--ghost-light:hover { border-color: var(--paper); }

.btn--lg {
  padding: 18px 28px;
  font-size: 12.5px;
  gap: 12px;
}
.btn--lg svg { width: 16px; height: 16px; }

/* ---------- mobile nav ---------- */
.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 0;
  padding: 12px var(--pad) 24px;
  background: var(--field);
  color: var(--paper);
  border-bottom: 1px solid var(--hair-d);
}
.site-header.is-inverted .mobile-nav { background: var(--paper); color: var(--ink); border-bottom-color: var(--hair-l); }
.mobile-nav a {
  padding: 16px 4px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--hair-d);
}
.site-header.is-inverted .mobile-nav a { border-bottom-color: var(--hair-l); }
.mobile-nav a.btn { border-bottom: 0; margin-top: 20px; justify-content: center; }
.mobile-nav.is-open { display: flex; }

/* ============================================================
   HERO — dark cryo field with luminous specimen
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  padding: 140px 0 60px;
  background:
    radial-gradient(ellipse at 78% 50%, rgba(233, 181, 167, .10) 0%, transparent 55%),
    radial-gradient(ellipse at 22% 35%, rgba(200, 135, 63, .08) 0%, transparent 45%),
    linear-gradient(180deg, #071B1F 0%, #0A2529 45%, #0B2A2F 100%);
  color: var(--paper);
  overflow: hidden;
  isolation: isolate;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Grain overlay — cryo micrograph feel */
.hero__grain {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: .35;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.94  0 0 0 0 0.90  0 0 0 0 0.82  0 0 0 .55 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  mix-blend-mode: overlay;
}

.hero__inner {
  position: relative;
  z-index: 3;
  max-width: 940px;
}

.hero__eyebrow {
  display: flex;
  gap: 10px;
  margin-bottom: 44px;
  flex-wrap: wrap;
}
.tag {
  display: inline-flex;
  align-items: center;
  padding: 16px 30px;
  border-radius: 999px;
  background: var(--field-3);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 17px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.tag--ghost { background: transparent; border: 1px solid var(--hair-d); }

/* Abstract block — set like a scientific paper's abstract header */
.abstract {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 40px;
  margin: 0 0 52px;
  padding: 28px 0;
  border-top: 1px solid var(--hair-d);
  border-bottom: 1px solid var(--hair-d);
  max-width: 720px;
}
.abstract div { min-width: 0; }
.abstract dt {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(241, 237, 228, .5);
  margin-bottom: 10px;
}
.abstract dd {
  margin: 0;
  font-family: var(--serif);
  font-variation-settings: "opsz" 20;
  font-size: 18px;
  color: var(--paper);
  line-height: 1.25;
}

.hero__cta { display: flex; gap: 12px; flex-wrap: wrap; }

.brochure-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 24px;
  padding: 4px 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(241, 237, 228, .82);
  border-bottom: 1px solid transparent;
  transition: color .18s ease, border-color .18s ease;
}
.brochure-link:hover {
  color: var(--copper-2);
  border-bottom-color: var(--copper-2);
  text-decoration: none;
}
.brochure-link svg { width: 14px; height: 14px; stroke-linecap: round; stroke-linejoin: round; }
.brochure-link__meta {
  padding-left: 10px;
  margin-left: 6px;
  border-left: 1px solid rgba(241, 237, 228, .25);
  color: rgba(241, 237, 228, .5);
  font-size: 10.5px;
  letter-spacing: 0.14em;
}

/* Hero footline — sponsor lockup, flows at the end of the hero */
.hero__footline {
  position: relative;
  z-index: 3;
  margin-top: 72px;
  padding-top: 32px;
  border-top: 1px solid var(--hair-d);
  display: flex;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
}
.footline__group {
  display: flex;
  align-items: center;
  gap: 18px;
}
.footline__label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(241, 237, 228, .5);
  white-space: nowrap;
}
.footline__logo {
  display: inline-flex;
  align-items: center;
  padding: 14px 22px;
  background: var(--paper);
  border-radius: 8px;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease);
  box-shadow: 0 8px 30px rgba(0,0,0,.18);
}
.footline__logo:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 40px rgba(200, 135, 63, .18);
  text-decoration: none;
}
.footline__logo img {
  height: 44px;
  width: auto;
  display: block;
}
.footline__sep {
  display: none;
}

/* ============================================================
   SECTIONS — asymmetric editorial grid
   ============================================================ */
.section {
  padding-block: clamp(100px, 12vw, 180px);
  position: relative;
}
.section--paper { background: var(--paper); color: var(--ink); }
.section--paper2 { background: var(--paper-2); }
.section--field { background: var(--field); color: var(--paper); }
.section--field + .section--field { padding-top: 0; }

.section__grid {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: clamp(48px, 8vw, 128px);
  align-items: start;
}
.section__aside { position: sticky; top: 120px; padding-top: 6px; }
.section__body { min-width: 0; }

/* Rubric — replaces the numbered chapter labels */
.rubric {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--copper);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--copper);
  display: block;
  margin-bottom: 14px;
}
.rubric--light { color: var(--copper-2); border-bottom-color: var(--copper-2); }
.rubric__note {
  font-family: var(--mono);
  font-size: 11.5px;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--ink-3);
  margin: 0;
}
.rubric__note--light { color: rgba(241, 237, 228, .5); }

.section__grid--dark { color: var(--paper); }
.section__grid--dark .rubric { color: var(--copper-2); border-bottom-color: var(--copper-2); }
.section__grid--dark .rubric__note { color: rgba(241, 237, 228, .5); }

.section__foot {
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid var(--hair-d);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(241, 237, 228, .5);
}
.section--paper .section__foot {
  border-top-color: var(--hair-l);
  color: var(--ink-3);
}

/* ---------- prose ---------- */
.prose { color: var(--ink-2); font-size: 17px; line-height: 1.7; max-width: 62ch; }
.prose p { margin: 0 0 1em; }
.prose__lede {
  font-family: var(--serif);
  font-variation-settings: "opsz" 24;
  font-size: 22px;
  line-height: 1.4;
  color: var(--ink);
  margin-bottom: 1.2em !important;
  letter-spacing: -0.005em;
}
.prose a { color: var(--ink); border-bottom: 1px solid var(--copper); padding-bottom: 1px; }
.prose__meta {
  margin: 40px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--hair-l);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* ---------- topics ---------- */
.topics {
  list-style: none;
  padding: 0;
  margin: 48px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
}
.topics li {
  padding: 8px 16px;
  border: 1px solid var(--hair-l);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--ink-2);
  background: var(--paper);
  transition: color .18s ease, border-color .18s ease;
}
.topics li:hover { color: var(--copper); border-color: var(--copper); }

/* ============================================================
   SESSIONS — detail list
   ============================================================ */
.sessions {
  list-style: none;
  padding: 0;
  margin: 64px 0 0;
  border-top: 1px solid var(--hair-d);
}
.session {
  display: grid;
  grid-template-columns: 90px 1fr auto;
  gap: 32px;
  padding: 22px 0;
  border-bottom: 1px solid var(--hair-d);
  align-items: baseline;
  transition: padding .2s var(--ease);
}
.session:hover { padding-left: 8px; }
.session__time {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--copper-2);
}
.session__title {
  font-family: var(--serif);
  font-variation-settings: "opsz" 32;
  font-weight: 400;
  font-size: clamp(20px, 2.2vw, 26px);
  line-height: 1.2;
  margin: 0 0 6px;
  color: var(--paper);
  letter-spacing: -0.01em;
}
.session__note {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: rgba(241, 237, 228, .5);
  margin: 0;
}
.session__dur {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(241, 237, 228, .55);
  justify-self: end;
  align-self: baseline;
}
.session--break .session__title,
.session--end .session__title {
  font-style: italic;
  color: rgba(241, 237, 228, .6);
  font-size: clamp(18px, 1.8vw, 22px);
}
.session--headline .session__title { color: var(--copper-2); }
.session--peak .session__time { color: var(--copper); }

/* ============================================================
   FACULTY — precise horizontal rows
   ============================================================ */
.faculty {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--hair-l);
}
.faculty__row {
  display: grid;
  grid-template-columns: 140px 1fr 1fr 130px;
  gap: 32px;
  padding: 26px 0;
  align-items: baseline;
  border-bottom: 1px solid var(--hair-l);
}
.faculty__role {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--copper);
}
.faculty__name {
  font-family: var(--serif);
  font-variation-settings: "opsz" 32;
  font-weight: 400;
  font-size: 24px;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.faculty__note {
  font-size: 15px;
  color: var(--ink-2);
}
.faculty__status {
  justify-self: end;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  padding: 4px 10px;
  border: 1px solid var(--hair-l);
  border-radius: 999px;
}

/* ============================================================
   VENUE
   ============================================================ */
.venue {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: clamp(32px, 5vw, 80px);
  align-items: start;
}
.venue__addr {
  font-family: var(--serif);
  font-variation-settings: "opsz" 24;
  font-style: normal;
  font-size: 22px;
  line-height: 1.4;
  color: var(--ink);
  margin: 0 0 24px;
}
.venue__facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px 40px;
  padding: 32px 36px;
  background: var(--paper);
  border: 1px solid var(--hair-l);
}
.section--paper2 .venue__facts { background: var(--paper); }
.venue__facts div { min-width: 0; }
.venue__facts dt {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--copper);
  margin: 0 0 10px;
}
.venue__facts dd {
  margin: 0;
  font-size: 14.5px;
  color: var(--ink);
  line-height: 1.55;
}

/* ============================================================
   HOSTS — precise, side-by-side, one gets sponsor treatment
   ============================================================ */
.hosts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 32px;
}
.host {
  padding: 44px 40px 40px;
  border: 1px solid var(--hair-l);
  background: var(--paper);
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-height: 320px;
}
.host--sponsor {
  background: var(--field);
  color: var(--paper);
  border-color: var(--field);
}
.host__mark {
  width: 40px;
  height: 40px;
  color: var(--copper);
  margin-bottom: 4px;
}
.host--sponsor .host__mark { color: var(--copper-2); }

/* Host logo lockup — handles white-background PNG on both surfaces */
.host__logo {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  margin-bottom: 8px;
  min-height: 88px;
}
.host__logo img {
  max-height: 80px;
  max-width: 100%;
  width: auto;
  display: block;
}
.host__logo--paper img {
  max-height: 72px;
}
.host__logo--chip {
  padding: 18px 24px;
  background: var(--paper);
  border-radius: 8px;
  align-self: flex-start;
}
.host__logo--chip img { max-height: 68px; }
.host__role {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.host--sponsor .host__role { color: rgba(241, 237, 228, .55); }
.host__name {
  font-family: var(--serif);
  font-variation-settings: "opsz" 48;
  font-weight: 400;
  font-size: clamp(32px, 3.6vw, 44px);
  line-height: 1;
  margin: 0;
  letter-spacing: -0.02em;
}
.host__desc {
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-2);
  margin: 0;
  flex-grow: 1;
}
.host--sponsor .host__desc { color: rgba(241, 237, 228, .72); }
.host__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--copper);
  margin-top: auto;
}
.host__link:hover { color: var(--copper-2); text-decoration: none; }
.host__link svg { width: 14px; height: 14px; stroke-linecap: round; stroke-linejoin: round; }
.host--sponsor .host__link { color: var(--copper-2); }
.host__link--secondary {
  color: rgba(241, 237, 228, .55);
  margin-top: 4px;
}
.host__link--secondary:hover { color: var(--copper-2); }
.host--sponsor .host__link--secondary { color: rgba(241, 237, 228, .5); }

/* ============================================================
   RESERVE — email + phone only, no form
   ============================================================ */
.reserve-channels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 48px;
  padding-top: 40px;
  border-top: 1px solid var(--hair-d);
}
.reserve-channel {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto;
  gap: 4px 20px;
  align-items: center;
  padding: 28px 32px;
  border: 1px solid var(--hair-d);
  border-radius: 4px;
  background: rgba(241, 237, 228, .02);
  color: var(--paper);
  transition: background .18s ease, border-color .18s ease, transform .18s var(--ease);
}
.reserve-channel:hover {
  background: rgba(200, 135, 63, .08);
  border-color: var(--copper);
  text-decoration: none;
  transform: translateY(-2px);
}
.reserve-channel__label {
  grid-column: 1;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--copper-2);
}
.reserve-channel__value {
  grid-column: 1;
  grid-row: 2;
  font-family: var(--serif);
  font-variation-settings: "opsz" 32;
  font-size: clamp(20px, 2.4vw, 28px);
  color: var(--paper);
  letter-spacing: -0.01em;
}
.reserve-channel svg {
  grid-column: 2;
  grid-row: 1 / span 2;
  width: 22px;
  height: 22px;
  stroke-linecap: round;
  stroke-linejoin: round;
  color: var(--copper-2);
  justify-self: end;
}

.reserve-note {
  margin: 24px 0 0;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(241, 237, 228, .5);
}

@media (max-width: 720px) {
  .reserve-channels { grid-template-columns: 1fr; }
  .reserve-channel { padding: 22px 24px; }
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--paper-2);
  padding: 72px 0 56px;
  border-top: 1px solid var(--hair-l);
}
.site-footer__inner { display: grid; gap: 28px; }
.site-footer__brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--serif);
  font-variation-settings: "opsz" 24;
  font-size: 20px;
  color: var(--ink);
}
.site-footer__brand em { font-style: italic; font-weight: 400; }
.site-footer__meta {
  display: flex;
  gap: clamp(20px, 3vw, 40px);
  flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ink-3);
}
.site-footer__meta a { color: var(--ink); border-bottom: 1px solid var(--copper); padding-bottom: 1px; }
.site-footer__fine {
  margin: 0;
  padding-top: 24px;
  border-top: 1px solid var(--hair-l);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* ============================================================
   REVEAL ANIMATION — subtle rise on scroll
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
}
.reveal.is-in { opacity: 1; transform: none; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1080px) {
  .section__grid { grid-template-columns: 200px 1fr; gap: 48px; }
  .section__aside { position: static; }
  .faculty__row { grid-template-columns: 130px 1fr 1fr 110px; gap: 20px; }
}

@media (max-width: 860px) {
  .nav { display: none; }
  .menu-toggle { display: inline-flex; }
  .header-actions .btn:not(.menu-toggle) { display: none; }

  .site-header__inner { min-height: 64px; }
  .hero { padding-top: 110px; min-height: auto; padding-bottom: 100px; }
  .hero__footline {
    margin-top: 48px;
    padding-top: 24px;
    gap: 24px;
    flex-direction: column;
    align-items: flex-start;
  }
  .footline__logo img { height: 36px; }

  .display { font-size: clamp(36px, 9vw, 60px); }
  .abstract { grid-template-columns: 1fr 1fr; gap: 24px; }

  .section { padding-block: clamp(72px, 12vw, 120px); }
  .section__grid { grid-template-columns: 1fr; gap: 32px; }

  .venue { grid-template-columns: 1fr; }
  .venue__facts { grid-template-columns: 1fr 1fr; padding: 24px 24px; }
  .hosts { grid-template-columns: 1fr; }
  .reg-form { grid-template-columns: 1fr; }

  .faculty__row {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 20px 0;
  }
  .faculty__status { justify-self: start; margin-top: 8px; }

  .session { grid-template-columns: 68px 1fr auto; gap: 16px; }
  .session__title { font-size: 18px; }
}

@media (max-width: 560px) {
  .abstract { grid-template-columns: 1fr; gap: 16px; padding: 20px 0; }
  .venue__facts { grid-template-columns: 1fr; gap: 24px; }
  .host { padding: 32px 26px; min-height: 0; }
  .site-footer__meta { flex-direction: column; gap: 10px; }
  .session { grid-template-columns: 56px 1fr; }
  .session__dur { grid-column: 2; justify-self: start; }
}

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