/* ===================================================
   RR2026 — Microbe-inspired Theme
   Palette: bioluminescent teal + agar amber + spore violet
   Font: system sans-serif stack
   =================================================== */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,400&display=swap');

:root {
  /* ── Microbe palette ── */
  --bg:          #f7f9f7;       /* agar plate off-white  */
  --bg2:         #eef3ee;       /* petri dish green tint */
  --bg3:         #e4ede9;       /* culture medium        */
  --surface:     #ffffff;
  --border:      #d5e2d8;
  --border2:     #b5cebc;

  --text:        #141f18;       /* deep forest           */
  --text2:       #3d5447;       /* moss                  */
  --muted:       #7a9484;       /* sage                  */

  /* ── Accent ramps ── */
  --teal:        #1e9b82;       /* bioluminescent teal   */
  --teal-d:      #136b5b;
  --teal-lt:     #d0f0ea;

  --amber:       #b07a1a;       /* spore amber           */
  --amber-d:     #7a540f;
  --amber-lt:    #fdf0d0;

  --violet:      #6e4fa0;       /* crystal violet stain  */
  --violet-d:    #4e3572;
  --violet-lt:   #ede4f8;

  --coral:       #c0553a;       /* safranin red          */
  --coral-d:     #8a3a26;
  --coral-lt:    #faebe5;

  --mint:        #3aaa72;       /* colony green          */
  --mint-d:      #277a50;
  --mint-lt:     #daf3e8;

  /* ── Primary action ── */
  --cta:         var(--teal);
  --cta-d:       var(--teal-d);
  --cta-lt:      var(--teal-lt);

  --cta2:        var(--coral);
  --cta2-d:      var(--coral-d);
  --cta2-lt:     var(--coral-lt);

  font-size: 15px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  overflow-x: hidden;
}

a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 {
  font-family: 'DM Sans', system-ui, -apple-system, sans-serif;
  font-weight: 600;
  line-height: 1.2;
  color: var(--text);
}

/* ── Utility labels ── */
.eyebrow {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal);
  font-variant-numeric: tabular-nums;
  margin-bottom: 0.5rem;
}
.section-title { font-size: clamp(1.55rem, 3vw, 2.1rem); margin-bottom: 0.65rem; }
.section-title em { font-style: italic; font-weight: 400; color: var(--teal); }
.section-lead { font-size: 0.97rem; color: var(--text2); max-width: 560px; line-height: 1.75; font-weight: 300; }
.rule { width: 36px; height: 2px; background: var(--border2); margin: 0.85rem 0 1.4rem; }

/* ── Layout ── */
.container  { max-width: 1060px; margin: 0 auto; padding: 0 2rem; }
section     { padding: 4.5rem 0; }
.sec-alt    { background: var(--bg2); }
.sec-white  { background: var(--surface); }
.sec-teal   { background: var(--teal); }
.sec-dark   { background: var(--text); }

.about-grid { 
  display: grid; 
  grid-template-columns: 1fr 1fr; 
  gap: 4rem; 
  align-items: start; 
}

/* ── NAV ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(247,249,247,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  height: 58px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 2.5rem;
}
.nav-logo {
  font-size: 0.95rem; font-weight: 600; color: var(--text);
  display: flex; align-items: center; gap: 0.5rem;
  z-index: 1001;
}
.nav-logo .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--teal); display: inline-block;
  animation: pulse-dot 2.4s ease-in-out infinite;
}
@keyframes pulse-dot { 0%,100%{transform:scale(1);opacity:1} 50%{transform:scale(1.5);opacity:0.5} }

.nav-links { display: flex; align-items: center; gap: 0; }
.nav-links a {
  font-size: 0.77rem; font-weight: 500; color: var(--text2);
  padding: 0.32rem 0.65rem; border-radius: 5px;
  transition: all 0.15s; cursor: pointer; text-decoration: none;
  letter-spacing: 0.01em;
}
.nav-links a:hover { color: var(--teal); background: var(--teal-lt); text-decoration: none; }
.nav-links a.active { color: var(--teal); font-weight: 600; }
.nav-cta { background: var(--teal) !important; color: white !important; margin-left: 0.4rem; }
.nav-cta:hover { background: var(--teal-d) !important; }

/* Hamburger menu (hidden on desktop) */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
  position: relative;
}
.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text);
  transition: all 0.3s ease;
  border-radius: 2px;
}
.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(7px, 7px);
}
.hamburger.active span:nth-child(2) {
  opacity: 0;
}
.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* Overlay for mobile menu */
.nav-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 998;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.nav-overlay.active {
  display: block;
  opacity: 1;
}

/* ── Pages ── */
.page { display: none; padding-top: 58px; min-height: 100vh; }
.page.active { display: block; }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.62rem 1.35rem; border-radius: 6px;
  font-size: 0.87rem; font-weight: 500;
  font-family: inherit; border: none; cursor: pointer;
  transition: all 0.17s; text-decoration: none;
}
.btn-teal  { background: var(--teal);  color: white; }
.btn-teal:hover { background: var(--teal-d); transform: translateY(-1px); text-decoration: none; color: white; }
.btn-outline { background: transparent; color: var(--teal); border: 1.5px solid var(--teal); }
.btn-outline:hover { background: var(--teal-lt); text-decoration: none; }
.btn-amber { background: var(--amber); color: white; }
.btn-amber:hover { background: var(--amber-d); text-decoration: none; color: white; }
.btn-coral { background: var(--coral); color: white; }
.btn-coral:hover { background: var(--coral-d); transform: translateY(-1px); text-decoration: none; color: white; }
.btn-sm    { padding: 0.4rem 0.85rem; font-size: 0.8rem; }
.btn-full  { width: 100%; justify-content: center; }

/* ══════════════════════════════════════════════
   HERO — microbe canvas background
══════════════════════════════════════════════ */
.hero {
  position: relative;
  min-height: calc(100vh - 58px);
  background: #f0f7f3;  /* very light agar tint */
  display: flex; align-items: center;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}
#microbe-canvas {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  pointer-events: none;
}

/* subtle grid overlay for petri-dish feel */
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.25;
  pointer-events: none;
}

.hero-content {
  position: relative; z-index: 2;
  max-width: 1060px; margin: 0 auto;
  padding: 5rem 2rem 5rem;
  width: 100%;
}

.hero-badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: var(--teal-lt);
  color: var(--teal-d);
  font-size: 0.71rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 0.35rem 0.9rem; border-radius: 100px;
  border: 1px solid rgba(30,155,130,0.25);
  margin-bottom: 1.75rem;
}
.hero-badge .live-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--mint);
  animation: blink-dot 2s ease-in-out infinite;
}
@keyframes blink-dot { 0%,100%{opacity:1} 50%{opacity:0.2} }

.hero h1 {
  font-size: clamp(2rem, 5.5vw, 3.5rem);
  max-width: 780px; line-height: 1.15;
  margin-bottom: 1.1rem; font-weight: 600;
  color: var(--text);
}
.hero h1 em { color: var(--teal); font-style: italic; font-weight: 400; }
.hero-sub {
  font-size: 1rem; font-weight: 300; color: var(--text2);
  max-width: 540px; line-height: 1.8; margin-bottom: 2.5rem;
}
.hero-meta {
  display: flex; flex-wrap: wrap; gap: 2rem;
  padding: 1.4rem 0; border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border); margin-bottom: 2.5rem;
}
.meta-item { display: flex; flex-direction: column; gap: 0.1rem; }
.meta-lbl  { font-size: 0.67rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); }
.meta-val  { font-size: 0.9rem; font-weight: 500; color: var(--text); }
.hero-btns { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.hosts-strip {
  margin-top: 2.5rem; padding-top: 1.4rem;
  border-top: 1px solid var(--border);
  display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap;
}
.hosts-lbl { font-size: 0.69rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); }
.host-tag {
  font-size: 0.79rem; font-weight: 500; color: var(--text2);
  background: var(--surface); border: 1px solid var(--border);
  padding: 0.28rem 0.7rem; border-radius: 4px;
}

/* ── Countdown ── */
.countdown-bar {
  background: var(--teal);
  padding: 1.1rem 2rem;
  display: flex; justify-content: center; align-items: center;
  gap: 2rem; flex-wrap: wrap;
}
.cd-lbl { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.12em; color: rgba(255,255,255,0.65); }
.cd-units { display: flex; gap: 1rem; }
.cd-unit  { text-align: center; }
.cd-num   { font-size: 1.55rem; font-weight: 600; color: white; line-height: 1; display: block; min-width: 44px; }
.cd-unit-lbl { font-size: 0.6rem; letter-spacing: 0.1em; text-transform: uppercase; color: rgba(255,255,255,0.55); }

/* ── Section shared ── */
.page-header { background: var(--surface); border-bottom: 1px solid var(--border); padding: 3.5rem 2rem 2.5rem; }
.page-header .section-lead { color: var(--text2); }

/* ── Cards ── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px; padding: 1.4rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.card:hover { border-color: var(--border2); box-shadow: 0 4px 14px rgba(0,0,0,0.05); }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.4rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 1rem; }

/* ── About stats ── */
.stat-box { background: var(--bg2); border: 1px solid var(--border); border-radius: 8px; padding: 1.75rem; }
.stat-row { display: flex; gap: 1rem; margin-top: 1.2rem; }
.stat-item { flex:1; background: var(--surface); border: 1px solid var(--border); border-radius: 6px; padding: 0.9rem; text-align: center; }
.stat-num  { font-size: 1.75rem; font-weight: 700; color: var(--teal); line-height: 1; }
.stat-lbl  { font-size: 0.67rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); margin-top: 0.2rem; }

/* ── Checklist ── */
.checklist { list-style: none; margin-top: 1.25rem; }
.checklist li {
  display: flex; gap: 0.6rem; align-items: flex-start;
  padding: 0.5rem 0; border-bottom: 1px solid var(--border);
  font-size: 0.88rem; color: var(--text2); line-height: 1.55;
}
.checklist li:last-child { border: none; }
.ck-icon { color: var(--teal); font-weight: 700; margin-top: 1px; flex-shrink: 0; }

/* ── Topic cards ── */
.topic-card {
  background: var(--surface); border: 1px solid var(--border);
  border-left: 3px solid var(--border2);
  border-radius: 0 7px 7px 0; padding: 1.2rem 1.2rem 1.2rem 1.4rem;
  transition: border-left-color 0.15s, box-shadow 0.15s;
}
.topic-card:hover { border-left-color: var(--teal); box-shadow: 0 3px 12px rgba(0,0,0,0.04); }
.topic-icon  { font-size: 1.2rem; margin-bottom: 0.5rem; }
.topic-title { font-size: 0.9rem; font-weight: 600; color: var(--text); margin-bottom: 0.25rem; }
.topic-desc  { font-size: 0.8rem; color: var(--muted); line-height: 1.55; }

/* ── Info cards ── */
.info-card { border-left: 3px solid transparent; }
.info-card:hover { border-left-color: var(--teal); }
.ic-icon   { font-size: 1.2rem; margin-bottom: 0.55rem; }
.ic-title  { font-weight: 600; font-size: 0.9rem; margin-bottom: 0.3rem; }
.ic-text   { font-size: 0.82rem; color: var(--text2); line-height: 1.58; }

/* ── Color accent pills on topics ── */
.pill {
  display: inline-block; font-size: 0.68rem; font-weight: 600;
  letter-spacing: 0.07em; text-transform: uppercase;
  padding: 0.18rem 0.55rem; border-radius: 3px; margin-bottom: 0.35rem;
}
.pill-teal   { background: var(--teal-lt);   color: var(--teal-d); }
.pill-amber  { background: var(--amber-lt);  color: var(--amber-d); }
.pill-violet { background: var(--violet-lt); color: var(--violet-d); }
.pill-coral  { background: var(--coral-lt);  color: var(--coral-d); }
.pill-mint   { background: var(--mint-lt);   color: var(--mint-d); }

/* ── Program ── */
.day-tabs { display: flex; gap: 0.2rem; border-bottom: 1px solid var(--border); margin: 2rem 0 0; }
.day-tab {
  padding: 0.55rem 1.4rem; font-size: 0.84rem; font-weight: 500;
  cursor: pointer; border: none; background: none; font-family: inherit;
  color: var(--muted); border-bottom: 2px solid transparent;
  margin-bottom: -1px; transition: all 0.15s;
}
.day-tab.active { color: var(--teal); border-bottom-color: var(--teal); font-weight: 600; }
.day-tab:hover  { color: var(--text); }
.day-content { display: none; }
.day-content.active { display: block; }
.schedule { margin-top: 2rem; }
.sched-row {
  display: grid; grid-template-columns: 108px 1fr;
  gap: 1.4rem; padding: 0.95rem 0;
  border-bottom: 1px solid var(--border); align-items: start;
}
.sched-row:last-child { border: none; }
.sched-time  { font-size: 0.74rem; color: var(--muted); padding-top: 2px; line-height: 1.4; font-variant-numeric: tabular-nums; }
.sched-tag   { display: inline-block; font-size: 0.64rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; padding: 0.16rem 0.5rem; border-radius: 3px; margin-bottom: 0.3rem; }
.tag-keynote  { background: var(--amber-lt);  color: var(--amber-d); }
.tag-session  { background: var(--teal-lt);   color: var(--teal-d); }
.tag-break    { background: var(--bg3);        color: var(--muted); }
.tag-social   { background: var(--coral-lt);  color: var(--coral-d); }
.tag-ceremony { background: var(--violet-lt); color: var(--violet-d); }
.sched-title  { font-size: 0.93rem; font-weight: 600; color: var(--text); }
.sched-desc   { font-size: 0.82rem; color: var(--text2); margin-top: 0.18rem; line-height: 1.52; }

/* ── Speakers ── */
.speaker-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 8px; overflow: hidden; transition: box-shadow 0.15s;
}
.speaker-card:hover { box-shadow: 0 5px 18px rgba(0,0,0,0.07); }
.speaker-avatar {
  height: 150px; background: var(--bg2);
  display: flex; align-items: center; justify-content: center;
  border-bottom: 1px solid var(--border);
}
.speaker-initials { font-size: 1.9rem; color: var(--border2); font-weight: 600; }
.spk-body { padding: 1.15rem; }
.spk-name  { font-size: 0.98rem; font-weight: 600; color: var(--text); }
.spk-role  { font-size: 0.76rem; color: var(--teal); font-weight: 500; margin: 0.18rem 0; }
.spk-affil { font-size: 0.75rem; color: var(--muted); }
.spk-slot  { margin-top: 0.7rem; font-size: 0.73rem; background: var(--bg2); border: 1px solid var(--border); border-radius: 4px; padding: 0.3rem 0.55rem; color: var(--text2); }

/* ── Committee ── */
.comm-group   { margin-bottom: 2.75rem; }
.comm-heading {
  display: flex; align-items: center; gap: 0.7rem;
  font-size: 1.15rem; font-weight: 600; color: var(--text);
  padding-bottom: 0.7rem; border-bottom: 2px solid var(--border); margin-bottom: 1.1rem;
}
.comm-badge { font-size: 0.62rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; background: var(--teal-lt); color: var(--teal-d); padding: 0.18rem 0.5rem; border-radius: 3px; }
.cm-card { background: var(--surface); border: 1px solid var(--border); border-radius: 6px; padding: 0.95rem 1.05rem; transition: border-color 0.15s; }
.cm-card:hover { border-color: var(--border2); }
.cm-name  { font-weight: 600; font-size: 0.86rem; color: var(--text); }
.cm-role  { font-size: 0.74rem; color: var(--teal); font-weight: 500; margin: 0.14rem 0; }
.cm-affil { font-size: 0.72rem; color: var(--muted); display: flex; align-items: center; gap: 0.3rem; margin-top: 0.22rem; }
.udot     { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }
.dot-u    { background: #c44a28; }
.dot-h    { background: #003087; }
.dot-k    { background: #aa0a0a; }
.cm-tba   { background: var(--bg2); border: 1.5px dashed var(--border2); border-radius: 6px; padding: 0.95rem; display: flex; align-items: center; justify-content: center; }
.cm-tba span { font-size: 0.76rem; color: var(--muted); }

/* ── Abstracts ── */
.steps-row { display: grid; grid-template-columns: repeat(4,1fr); gap: 1rem; margin: 2rem 0; }
.step-card { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 1.4rem; text-align: center; }
.step-num  { width: 36px; height: 36px; background: var(--teal); color: white; font-size: 1.05rem; font-weight: 600; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 0.8rem; }
.step-title { font-weight: 600; font-size: 0.87rem; color: var(--text); margin-bottom: 0.3rem; }
.step-desc  { font-size: 0.79rem; color: var(--muted); line-height: 1.55; }
.dates-table { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; font-size: 0.87rem; }
.dates-table th { background: var(--bg2); padding: 0.7rem 1.05rem; text-align: left; font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; font-weight: 600; color: var(--text2); border-bottom: 1px solid var(--border); }
.dates-table td { padding: 0.7rem 1.05rem; border-bottom: 1px solid var(--border); color: var(--text); }
.dates-table tr:last-child td { border: none; }
.dates-table tr:hover td { background: var(--bg2); }
.spill { display: inline-flex; align-items: center; gap: 0.25rem; font-size: 0.7rem; font-weight: 600; padding: 0.18rem 0.5rem; border-radius: 100px; }
.spill-tba { background: var(--amber-lt); color: var(--amber-d); }
.spill-ok  { background: var(--teal-lt);  color: var(--teal-d); }

/* ── Venue ── */
.map-box { background: var(--bg2); border: 1px solid var(--border); border-radius: 8px; height: 320px; display: flex; align-items: center; justify-content: center; text-align: center; padding: 2rem; }
.map-box h4 { font-size: 1.05rem; margin: 0.45rem 0 0.2rem; }
.map-box p  { font-size: 0.82rem; color: var(--muted); }
.map-box a  { display: inline-flex; align-items: center; gap: 0.3rem; margin-top: 0.65rem; font-size: 0.82rem; font-weight: 500; }
.vf-list { list-style: none; margin-top: 0.85rem; }
.vf-list li { display: flex; gap: 0.6rem; align-items: flex-start; padding: 0.5rem 0; border-bottom: 1px solid var(--border); font-size: 0.86rem; color: var(--text2); }
.vf-list li:last-child { border: none; }
.accomm-card { background: var(--surface); border: 1px solid var(--border); border-radius: 6px; padding: 1.05rem 1.2rem; }
.accomm-name  { font-weight: 600; font-size: 0.9rem; color: var(--text); }
.accomm-dist  { font-size: 0.75rem; color: var(--teal); margin: 0.14rem 0; }
.accomm-price { font-size: 0.77rem; color: var(--muted); margin-top: 0.22rem; }

/* ── Register ── */
.reg-layout { display: grid; grid-template-columns: 340px 1fr; gap: 3rem; align-items: start; }
.fee-card { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; position: sticky; top: 72px; }
.fee-top  { background: var(--teal); color: white; padding: 1.65rem; }
.fee-top .ey { font-size: 0.65rem; letter-spacing: 0.12em; text-transform: uppercase; opacity: 0.7; margin-bottom: 0.35rem; }
.fee-top h3 { font-size: 1.15rem; font-weight: 600; margin-bottom: 0.18rem; }
.fee-top p  { font-size: 0.8rem; opacity: 0.72; }
.price-row  { display: flex; align-items: baseline; gap: 0.2rem; margin-top: 1rem; }
.price-amt  { font-size: 2.1rem; font-weight: 700; }
.price-rng  { font-size: 0.85rem; opacity: 0.62; }
.fee-body   { padding: 1.4rem; }
.fee-list   { list-style: none; }
.fee-list li { display: flex; gap: 0.5rem; align-items: flex-start; padding: 0.38rem 0; border-bottom: 1px solid var(--border); font-size: 0.83rem; color: var(--text2); }
.fee-list li:last-child { border: none; }
.fee-ck     { color: var(--teal); font-weight: 700; flex-shrink: 0; margin-top: 1px; }
.fee-note   { margin-top: 0.9rem; padding: 0.9rem; background: var(--amber-lt); border: 1px solid rgba(176,122,26,0.2); border-radius: 6px; font-size: 0.78rem; color: var(--text2); line-height: 1.5; }
.fee-note strong { color: var(--amber-d); }

.form-card  { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 2rem; }
.form-card h3 { font-size: 1.2rem; font-weight: 600; margin-bottom: 1.4rem; padding-bottom: 0.9rem; border-bottom: 1px solid var(--border); }
.form-group { margin-bottom: 1.05rem; }
.form-lbl   { display: block; font-size: 0.77rem; font-weight: 600; color: var(--text); margin-bottom: 0.32rem; }
.form-lbl .req { color: var(--coral); }
.form-inp, .form-sel, .form-ta {
  width: 100%; padding: 0.58rem 0.85rem;
  border: 1.5px solid var(--border); border-radius: 5px;
  font-family: inherit; font-size: 0.87rem; color: var(--text);
  background: var(--bg); transition: border-color 0.15s, background 0.15s; outline: none;
}
.form-inp:focus, .form-sel:focus, .form-ta:focus { border-color: var(--teal); background: var(--surface); }
.form-ta { resize: vertical; min-height: 78px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-hint { font-size: 0.73rem; color: var(--muted); margin-top: 0.28rem; }
.cancel-tbl { width: 100%; border-collapse: collapse; font-size: 0.84rem; }
.cancel-tbl th { background: var(--bg2); padding: 0.58rem 1rem; text-align: left; font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.07em; color: var(--muted); border-bottom: 1px solid var(--border); }
.cancel-tbl td { padding: 0.58rem 1rem; border-bottom: 1px solid var(--border); color: var(--text2); }
.cancel-tbl tr:last-child td { border: none; }

/* ── Contact ── */
.cdet { display: flex; gap: 0.9rem; align-items: flex-start; padding: 0.9rem 0; border-bottom: 1px solid var(--border); }
.cdet:last-child { border: none; }
.cdet-icon { width: 34px; height: 34px; min-width: 34px; background: var(--bg2); border: 1px solid var(--border); border-radius: 6px; display: flex; align-items: center; justify-content: center; font-size: 0.88rem; }
.cdet-lbl  { font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }
.cdet-val  { font-size: 0.88rem; color: var(--text); margin-top: 0.1rem; }
.faq-item  { padding: 1.05rem 0; border-bottom: 1px solid var(--border); }
.faq-item:last-child { border: none; }
.faq-q { font-weight: 600; font-size: 0.88rem; color: var(--text); margin-bottom: 0.28rem; }
.faq-a { font-size: 0.83rem; color: var(--text2); line-height: 1.6; }

/* ── Notice banners ── */
.notice { border-radius: 6px; padding: 0.9rem 1.15rem; font-size: 0.84rem; line-height: 1.55; }
.notice-teal  { background: var(--teal-lt);   border: 1px solid rgba(30,155,130,0.22); color: var(--text2); }
.notice-amber { background: var(--amber-lt);  border: 1px solid rgba(176,122,26,0.22); color: var(--text2); }
.notice-teal strong  { color: var(--teal-d); }
.notice-amber strong { color: var(--amber-d); }

/* ── Microbe legend pill in hero ── */
.microbe-key {
  position: absolute; bottom: 1.5rem; right: 2rem; z-index: 3;
  display: flex; align-items: center; gap: 0.5rem;
  background: rgba(255,255,255,0.75);
  border: 1px solid var(--border);
  backdrop-filter: blur(4px);
  border-radius: 100px; padding: 0.28rem 0.75rem;
  font-size: 0.68rem; color: var(--muted);
}
.mk-dot { width: 6px; height: 6px; border-radius: 50%; }

/* ── Footer ── */
footer { background: var(--text); color: rgba(255,255,255,0.55); padding: 2.75rem 2rem 1.75rem; }
.footer-grid { max-width: 1060px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2.5rem; }
.footer-name { font-size: 1rem; font-weight: 600; color: white; margin-bottom: 0.55rem; }
.footer-brand p { font-size: 0.8rem; line-height: 1.65; max-width: 265px; }
.footer-col-ttl { font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.12em; color: rgba(255,255,255,0.3); margin-bottom: 0.8rem; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 0.42rem; }
.footer-links a { font-size: 0.82rem; color: rgba(255,255,255,0.5); cursor: pointer; transition: color 0.15s; text-decoration: none; }
.footer-links a:hover { color: white; text-decoration: none; }
.footer-bottom { max-width: 1060px; margin: 2rem auto 0; padding-top: 1.15rem; border-top: 1px solid rgba(255,255,255,0.08); display: flex; justify-content: space-between; align-items: center; font-size: 0.76rem; flex-wrap: wrap; gap: 0.4rem; }

/* ── Responsive ── */
@media (max-width: 860px) {
  .reg-layout, .grid-2 { grid-template-columns: 1fr; }
  .fee-card { position: static; }
  .grid-3   { grid-template-columns: 1fr 1fr; }
  .grid-4   { grid-template-columns: 1fr 1fr; }
  .steps-row { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  
  /* Hero adjustments for tablets */
  .hero-content { padding: 3rem 1.5rem 3rem; }
  .hero-meta { gap: 1.5rem; }
}

@media (max-width: 580px) {
  .grid-3, .grid-4, .steps-row { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  nav { padding: 0 1rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .microbe-key { display: none; }
  
  /* Mobile hamburger menu */
  .hamburger {
    display: flex;
  }
  
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    height: 100vh;
    width: 280px;
    max-width: 85%;
    background: var(--surface);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 80px 0 20px;
    box-shadow: -2px 0 20px rgba(0, 0, 0, 0.1);
    transition: right 0.3s ease;
    z-index: 999;
    overflow-y: auto;
  }
  
  .nav-links.active {
    right: 0;
  }
  
  .nav-links a {
    font-size: 0.95rem;
    padding: 1rem 1.5rem;
    border-radius: 0;
    border-bottom: 1px solid var(--border);
    text-align: left;
    display: block;
  }
  
  .nav-links a:hover {
    background: var(--bg);
  }
  
  .nav-links a.active {
    background: var(--teal-lt);
    border-left: 3px solid var(--teal);
  }
  
  .nav-cta {
    margin: 1rem 1.5rem !important;
    padding: 0.85rem 1.5rem !important;
    text-align: center;
    border-radius: 8px !important;
    border-bottom: none !important;
  }
  
  /* Enhanced mobile styles */
  .container { padding: 0 1.25rem; }
  section { padding: 3rem 0; }
  
  /* Hero mobile optimizations */
  .hero { min-height: auto; }
  .hero-content { padding: 2.5rem 1.25rem 2.5rem; }
  .hero h1 { font-size: 1.75rem; margin-bottom: 0.85rem; }
  .hero-sub { font-size: 0.92rem; margin-bottom: 1.75rem; }
  .hero-meta { 
    gap: 1rem; 
    padding: 1rem 0;
    flex-direction: column;
    align-items: flex-start;
  }
  .meta-item { 
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 0.5rem;
    width: 100%;
  }
  .meta-lbl { font-size: 0.65rem; }
  .meta-val { font-size: 0.85rem; }
  .hero-btns { 
    flex-direction: column; 
    width: 100%;
    gap: 0.6rem;
  }
  .hero-btns .btn { 
    width: 100%; 
    justify-content: center;
    padding: 0.72rem 1rem;
  }
  .hosts-strip { 
    margin-top: 1.75rem; 
    padding-top: 1rem;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
  }
  
  /* Section titles */
  .section-title { font-size: 1.5rem; }
  .section-lead { font-size: 0.9rem; }
  
  /* Grid layouts for cards */
  .topic-card, .info-card { 
    padding: 1.15rem;
  }
  .topic-icon { font-size: 1.75rem; }
  .topic-title { font-size: 0.95rem; }
  .topic-desc { font-size: 0.82rem; }
  
  .ic-icon { font-size: 1.75rem; }
  .ic-title { font-size: 0.95rem; }
  .ic-text { font-size: 0.82rem; }
  
  /* About section grid */
  .about-grid {
    grid-template-columns: 1fr !important;
    gap: 2.5rem !important;
  }
  
  /* Stats box */
  .stat-box { padding: 1.35rem 1.15rem; }
  .stat-row { gap: 0.75rem; }
  .stat-num { font-size: 1.5rem; }
  .stat-lbl { font-size: 0.72rem; }
  
  /* Page headers */
  .page-header { padding: 2rem 0 1.5rem; }
  .page-header h1 { font-size: 1.75rem; }
  
  /* Speaker cards */
  .speaker-card { padding: 1rem; }
  .speaker-avatar { width: 56px; height: 56px; }
  .speaker-initials { font-size: 1rem; }
  .spk-name { font-size: 0.9rem; }
  .spk-role { font-size: 0.75rem; }
  .spk-affil { font-size: 0.73rem; }
  .spk-slot { font-size: 0.7rem; }
  
  /* Committee cards */
  .comm-card { padding: 1rem; }
  .comm-avatar { width: 56px; height: 56px; }
  .comm-initials { font-size: 1rem; }
  .comm-name { font-size: 0.9rem; }
  .comm-role { font-size: 0.75rem; }
  .comm-affil { font-size: 0.73rem; }
  
  /* Timeline */
  .timeline-item { padding-left: 1.75rem; }
  .timeline-dot { width: 10px; height: 10px; left: 0; }
  .tl-time { font-size: 0.7rem; }
  .tl-title { font-size: 0.88rem; }
  .tl-desc { font-size: 0.78rem; }
  
  /* Program tables */
  .prog-day { padding: 1.15rem; }
  .prog-meta .pm-item { font-size: 0.72rem; }
  .prog-table { font-size: 0.82rem; }
  
  /* Forms */
  .form-card { padding: 1.35rem; }
  .form-card h3 { font-size: 1.05rem; margin-bottom: 1.15rem; }
  
  /* Footer */
  footer { padding: 2rem 1.25rem 1.5rem; }
  .footer-grid { gap: 2rem; }
  .footer-bottom { 
    flex-direction: column; 
    gap: 0.75rem; 
    text-align: center;
  }
  
  /* Navigation mobile improvements */
  .nav-logo { font-size: 0.88rem; }
  .nav-links { gap: 0.1rem; }
  .nav-cta { 
    margin-left: 0.25rem;
    padding: 0.32rem 0.55rem !important;
  }
  
  /* Countdown (if kept) */
  .countdown-bar { 
    padding: 1rem 1.25rem; 
    gap: 1rem;
    flex-direction: column;
  }
  .cd-lbl { font-size: 0.68rem; }
  .cd-units { gap: 0.75rem; }
  .cd-num { font-size: 1.35rem; min-width: 38px; }
  .cd-unit-lbl { font-size: 0.65rem; }
}

/* Extra small devices */
@media (max-width: 380px) {
  .hero h1 { font-size: 1.5rem; }
  .hero-badge { font-size: 0.65rem; padding: 0.3rem 0.7rem; }
  .section-title { font-size: 1.35rem; }
  .nav-links a { font-size: 0.68rem; padding: 0.25rem 0.35rem; }
  .btn { font-size: 0.82rem; padding: 0.65rem 1.1rem; }
  .topic-card, .info-card { padding: 1rem; }
}