/* Canonical Claymorphism Tokens for Attendee Pages */
:root, html.dark {
  --bg:#0D0D0F; --surface:#1A1A1F; --surface-2:#222228; --surface-3:#2C2C34; --surface-4:#36363F;
  --text:#F2F2F3; --text-2:#9898A6; --muted:#55555F;
  --inset:rgba(0,0,0,.38); --inset-2:rgba(0,0,0,.55); --highlight:rgba(255,255,255,.055);
  --clay-xs:0 2px 8px rgba(0,0,0,.5),inset 0 1px 0 rgba(255,255,255,.05);
  --clay-sm:0 4px 16px rgba(0,0,0,.55),0 1px 4px rgba(0,0,0,.35),inset 0 1px 0 rgba(255,255,255,.05);
  --clay:0 8px 28px rgba(0,0,0,.6),0 2px 8px rgba(0,0,0,.4),inset 0 1px 0 rgba(255,255,255,.06);
  --clay-lg:0 16px 48px rgba(0,0,0,.7),0 4px 14px rgba(0,0,0,.45),inset 0 1px 0 rgba(255,255,255,.07);
  --clay-accent:0 6px 24px rgba(255,92,40,.4),0 2px 8px rgba(0,0,0,.3),inset 0 1px 0 rgba(255,255,255,.2);
  --clay-nav:0 -4px 20px rgba(0,0,0,.45),0 8px 28px rgba(0,0,0,.5),inset 0 1px 0 rgba(255,255,255,.08);
  --chip-orange:rgba(255,92,40,.18); --chip-blue:rgba(59,130,246,.18); --chip-green:rgba(34,197,94,.18);
  --chip-gold:rgba(245,158,11,.18); --chip-purple:rgba(139,92,246,.18); --chip-red:rgba(239,68,68,.18);
}
html.light {
  --bg:#EBE7E0; --surface:#FAFAF8; --surface-2:#F0EDE7; --surface-3:#E4E0D8; --surface-4:#D4CFCA;
  --text:#1C1917; --text-2:#6B6560; --muted:#A39D97;
  --inset:rgba(0,0,0,.06); --inset-2:rgba(0,0,0,.1); --highlight:rgba(255,255,255,.9);
  --clay-xs:0 2px 8px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.04);
  --clay-sm:0 4px 16px rgba(0,0,0,.1),0 2px 5px rgba(0,0,0,.06);
  --clay:0 8px 28px rgba(0,0,0,.12),0 3px 10px rgba(0,0,0,.07);
  --clay-lg:0 16px 48px rgba(0,0,0,.14),0 6px 16px rgba(0,0,0,.08);
  --clay-accent:0 6px 24px rgba(255,92,40,.3),0 2px 8px rgba(255,92,40,.12),inset 0 1px 0 rgba(255,255,255,.4);
  --clay-nav:0 -2px 12px rgba(0,0,0,.06),0 8px 28px rgba(0,0,0,.12),inset 0 1px 0 rgba(255,255,255,.95);
  --chip-orange:rgba(255,92,40,.12); --chip-blue:rgba(59,130,246,.12); --chip-green:rgba(34,197,94,.12);
  --chip-gold:rgba(245,158,11,.12); --chip-purple:rgba(139,92,246,.12); --chip-red:rgba(239,68,68,.12);
}
:root {
  --accent:#FF5C28; --accent-2:#FF7A4D; --accent-soft:rgba(255,92,40,.14); --accent-glow:rgba(255,92,40,.3);
  --green:#22C55E; --green-soft:rgba(34,197,94,.14); --blue:#3B82F6; --blue-soft:rgba(59,130,246,.14);
  --gold:#F59E0B; --gold-soft:rgba(245,158,11,.14); --purple:#8B5CF6;
  --danger:#EF4444; --danger-light:rgba(239,68,68,.14);
  --r-sm:10px; --r:14px; --r-lg:18px; --r-xl:24px; --r-2xl:32px; --r-full:9999px;
  --text-xs:11px; --text-sm:13px; --text-base:15px; --text-lg:17px; --text-xl:21px; --text-2xl:26px; --text-3xl:34px;
  --ease:.2s cubic-bezier(.4,0,.2,1);
  --safe-bottom:env(safe-area-inset-bottom,0px); --safe-top:env(safe-area-inset-top,0px);
  /* legacy aliases so old rules resolve and borders vanish */
  --border:transparent; --border-2:transparent;
}

/* Global resets and shared elements */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
/* No visible scrollbars anywhere on the attendee side — pages still scroll,
   the bar is just hidden (Firefox/IE + WebKit/Blink). */
* { scrollbar-width: none; -ms-overflow-style: none; }
::-webkit-scrollbar { width: 0; height: 0; display: none; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Space Grotesk', system-ui, sans-serif;
  font-size: var(--text-base);
  line-height: 1.6;
  padding-bottom: calc(60px + var(--safe-bottom));
  padding-top: var(--safe-top);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; transition: color var(--ease); }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
img { max-width: 100%; display: block; height: auto; }
input { font-family: inherit; }

/* Chrome - Top Bar */
.bar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: var(--surface);
  box-shadow: 0 1px 0 var(--surface-2), var(--clay-nav);
  font-family: 'Space Grotesk', system-ui, sans-serif;
}
.bar .t {
  flex: 1;
  font-weight: 700;
  font-size: var(--text-base);
  color: var(--text);
}
.ico {
  background: var(--surface-2);
  color: var(--text);
  width: 38px;
  height: 38px;
  border-radius: var(--r-sm);
  font-size: var(--text-sm);
  cursor: pointer;
  display: grid;
  place-items: center;
  text-decoration: none;
  border: none;
  box-shadow: var(--clay-xs);
  transition: opacity var(--ease), transform var(--ease);
}
.ico:active { transform: scale(0.95); }

/* Center Utility */
.center {
  display: grid;
  place-items: center;
  min-height: 70vh;
  color: var(--text-2);
  text-align: center;
  padding: 24px;
}

/* Shared Buttons */
.pbtn {
  position: fixed;
  bottom: calc(18px + var(--safe-bottom));
  left: 50%;
  transform: translateX(-50%);
  z-index: 40;
  display: flex;
  gap: 8px;
}
.pbtn button {
  display: flex;
  align-items: center;
  gap: 8px;
  border: none;
  border-radius: var(--r-full);
  padding: 12px 24px;
  font-weight: 700;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  font-size: var(--text-sm);
  box-shadow: var(--clay-accent);
  transition: transform var(--ease);
}
.pbtn button:active { transform: scale(0.95); }

/* Elevated Claymorphic Card */
.card {
  background: var(--surface);
  border-radius: var(--r-xl);
  box-shadow: var(--clay);
  position: relative;
  overflow: hidden;
}
.card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--highlight), transparent);
  pointer-events: none;
}

/* VCard (padded card for messages/forms) */
.vcard {
  background: var(--surface);
  border-radius: var(--r-xl);
  box-shadow: var(--clay);
  padding: 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.vcard::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--highlight), transparent);
  pointer-events: none;
}

/* Document/Modal Sheet (like booklet, certificate) */
.sheet {
  max-width: 600px;
  margin: 16px auto;
  background: var(--surface);
  color: var(--text);
  border-radius: var(--r-xl);
  overflow: hidden;
  box-shadow: var(--clay-lg);
  position: relative;
}
.sheet::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--highlight), transparent);
  pointer-events: none;
}

/* Primary Button */
.btn {
  font-size: var(--text-base);
  font-weight: 700;
  padding: 16px 32px;
  border-radius: var(--r-full);
  background: var(--accent);
  color: #fff;
  transition: transform var(--ease);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: var(--clay-accent);
  border: none;
  cursor: pointer;
  text-decoration: none;
}
.btn:active {
  transform: scale(0.95);
}

/* Secondary/Subtle Button */
.btn-sub {
  background: var(--surface-2);
  color: var(--text);
  box-shadow: var(--clay-sm);
}

/* Inputs, Selects, Textareas */
.inp {
  width: 100%;
  background: var(--surface-2);
  box-shadow: inset 0 2px 6px var(--inset);
  border: none;
  border-radius: var(--r-sm);
  color: var(--text);
  padding: 14px 16px;
  font-size: var(--text-base);
  font-family: inherit;
  transition: box-shadow var(--ease);
}
.inp:focus {
  outline: none;
  box-shadow: inset 0 2px 6px var(--inset), 0 0 0 2px var(--accent-glow);
}