/*
 * Design tokens and the small set of components the app is built from.
 * Everything is hand-rolled CSS so there is no build step to run.
 */

:root {
  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --ink: #14161c;
  --ink-soft: #4b5162;
  --ink-faint: #697086;

  --surface: #ffffff;
  --surface-sunken: #f7f8fa;
  --surface-raised: #ffffff;

  --line: #e4e6ec;
  --line-strong: #cfd3dd;

  /* The accent carries text both ways round — as link text on white, and as
     white button labels on it — so every pairing below clears WCAG AA at 4.5:1.
     test/design/palette_test.rb keeps it that way. */
  --accent: #1a6fa8;
  --accent-dark: #14567f;
  --accent-soft: #cfe3f5;
  --accent-line: #9bc7e6;
  --accent-lift: #2f8fd0;
  --accent-glow: rgba(26, 111, 168, .22);

  --positive: #05633c;
  --positive-soft: #bff2d4;
  --positive-line: #86dfab;
  --critical: #b42318;
  --critical-soft: #fdd9d6;
  --critical-line: #f8afa8;
  --caution: #9a3d07;
  --caution-soft: #fbe4a6;
  --caution-line: #f6cd63;

  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;

  --shadow-sm: 0 1px 2px rgba(20, 22, 28, .06);
  --shadow: 0 1px 3px rgba(20, 22, 28, .08), 0 8px 24px -12px rgba(20, 22, 28, .14);

  --space: 1rem;
  --measure: 40rem;
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--surface-sunken);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { margin: 0 0 .5rem; line-height: 1.25; letter-spacing: -.015em; font-weight: 640; }
h1 { font-size: 1.75rem; }
h2 { font-size: 1.25rem; }
h3 { font-size: 1.0625rem; }
p { margin: 0 0 1rem; }
p:last-child { margin-bottom: 0; }

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

hr { border: 0; border-top: 1px solid var(--line); margin: 1.5rem 0; }

small, .text-small { font-size: .8125rem; }
.text-muted { color: var(--ink-faint); }
.text-soft { color: var(--ink-soft); }

/* ---------------------------------------------------------------- layout */

.page {
  max-width: 68rem;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

.page--narrow { max-width: var(--measure); }

.page-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.page-header p { color: var(--ink-faint); margin: .25rem 0 0; }

.stack > * + * { margin-top: 1rem; }
.stack-sm > * + * { margin-top: .5rem; }
.stack-lg > * + * { margin-top: 1.75rem; }

.row { display: flex; align-items: center; gap: .75rem; flex-wrap: wrap; }
.row--between { justify-content: space-between; }
.row--tight { gap: .5rem; }

.grid-cards {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
}

/* ------------------------------------------------------------ admin nav */

.masthead {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

.masthead__inner {
  max-width: 68rem;
  margin: 0 auto;
  padding: 0 1.25rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  min-height: 60px;
}

.masthead__brand {
  font-weight: 680;
  letter-spacing: -.02em;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: .5rem;
}

.masthead__brand:hover { text-decoration: none; }

.masthead__mark {
  width: 26px; height: 26px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-lift));
  color: #fff;
  display: grid; place-items: center;
  flex: none;
}

/* The mark is drawn to fill 81% of its own box, so it needs a little less than
   the full tile to keep an even margin inside the rounded square. */
.masthead__mark svg { width: 72%; height: 72%; display: block; }

.masthead__nav { display: flex; gap: .25rem; flex-wrap: wrap; }
.masthead__spacer { margin-left: auto; }

.masthead__link {
  color: var(--ink-soft);
  padding: .4rem .7rem;
  border-radius: var(--radius-sm);
  font-size: .9375rem;
  font-weight: 500;
}

.masthead__link:hover { background: var(--surface-sunken); color: var(--ink); text-decoration: none; }
.masthead__link[aria-current="page"] { background: var(--accent-soft); color: var(--accent-dark); }

/* --------------------------------------------------------------- panels */

.panel {
  background: var(--surface-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.panel__header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.panel__header h2 { margin: 0; font-size: 1rem; }
.panel__body { padding: 1.25rem; }
.panel__footer { padding: 1rem 1.25rem; border-top: 1px solid var(--line); background: var(--surface-sunken); border-radius: 0 0 var(--radius) var(--radius); }

.stat { padding: 1.125rem 1.25rem; }
.stat__value { font-size: 1.75rem; font-weight: 660; letter-spacing: -.02em; }
.stat__label { color: var(--ink-faint); font-size: .8125rem; text-transform: uppercase; letter-spacing: .04em; }

/* --------------------------------------------------------------- buttons */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .45rem;
  font: inherit;
  font-size: .9375rem;
  font-weight: 550;
  line-height: 1.2;
  padding: .6rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  text-decoration: none;
  transition: background .12s ease, border-color .12s ease, color .12s ease;
}

.button:hover { background: var(--accent-dark); text-decoration: none; color: #fff; }
.button:disabled { opacity: .55; cursor: not-allowed; }

.button--secondary { background: var(--surface); border-color: var(--line-strong); color: var(--ink); }
.button--secondary:hover { background: var(--surface-sunken); color: var(--ink); }

.button--ghost { background: transparent; color: var(--ink-soft); }
.button--ghost:hover { background: var(--surface-sunken); color: var(--ink); }

.button--danger { background: var(--surface); border-color: var(--line-strong); color: var(--critical); }
.button--danger:hover { background: var(--critical-soft); color: var(--critical); }

.button--small { padding: .35rem .6rem; font-size: .8125rem; }
.button--block { width: 100%; }

/* ---------------------------------------------------------------- forms */

.field { margin-bottom: 1.125rem; }
.field:last-child { margin-bottom: 0; }

.field > label,
.field__label {
  display: block;
  font-size: .875rem;
  font-weight: 560;
  margin-bottom: .35rem;
}

.field__hint { color: var(--ink-faint); font-size: .8125rem; margin: -.15rem 0 .4rem; }
.field__error { color: var(--critical); font-size: .8125rem; margin-top: .3rem; }

input[type="text"], input[type="email"], input[type="password"], input[type="number"],
input[type="url"], input[type="date"], input[type="datetime-local"], select, textarea {
  width: 100%;
  font: inherit;
  font-size: .9375rem;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: .55rem .7rem;
  transition: border-color .12s ease, box-shadow .12s ease;
}

textarea { min-height: 5.5rem; resize: vertical; }

input:focus-visible, select:focus-visible, textarea:focus-visible, .button:focus-visible, a:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

a:focus-visible, .button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.field--invalid input, .field--invalid select, .field--invalid textarea { border-color: var(--critical); }

.field-inline { display: flex; align-items: center; gap: .5rem; }
.field-inline input[type="checkbox"] { width: auto; }

.input-prefix { display: flex; align-items: stretch; }
.input-prefix input { border-radius: var(--radius-sm) 0 0 var(--radius-sm); }
.input-prefix__suffix {
  display: inline-flex; align-items: center;
  padding: 0 .7rem;
  border: 1px solid var(--line-strong);
  border-left: 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--surface-sunken);
  color: var(--ink-faint);
  font-size: .875rem;
  white-space: nowrap;
}

/* Radio and checkbox groups on the public form. */
.choices { display: grid; gap: .5rem; }

.choice {
  display: flex;
  align-items: flex-start;
  gap: .625rem;
  padding: .625rem .75rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  cursor: pointer;
  font-size: .9375rem;
}

.choice:hover { border-color: var(--accent); }
.choice input { margin: .2rem 0 0; accent-color: var(--accent); }
.choice:has(input:checked) { border-color: var(--accent); background: var(--accent-soft); }

/* ---------------------------------------------------------------- tables */

.table-wrap { overflow-x: auto; }

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: .9375rem;
}

table.data th, table.data td {
  text-align: left;
  padding: .7rem 1.25rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

table.data th {
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--ink-faint);
  font-weight: 600;
  background: var(--surface-sunken);
  white-space: nowrap;
}

table.data tbody tr:last-child td { border-bottom: 0; }
table.data tbody tr:hover { background: var(--surface-sunken); }

/* ------------------------------------------------------- flashes & tags */

.flash {
  border-radius: var(--radius);
  padding: .75rem 1rem;
  font-size: .9375rem;
  border: 1px solid transparent;
  margin-bottom: 1.25rem;
}

.flash--notice { background: var(--positive-soft); border-color: var(--positive-line); color: var(--positive); }
.flash--alert { background: var(--critical-soft); border-color: var(--critical-line); color: var(--critical); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  font-size: .75rem;
  font-weight: 560;
  padding: .15rem .5rem;
  border-radius: 999px;
  background: var(--surface-sunken);
  color: var(--ink-soft);
  border: 1px solid var(--line);
  white-space: nowrap;
}

.tag--accent { background: var(--accent-soft); color: var(--accent-dark); border-color: var(--accent-line); }
.tag--positive { background: var(--positive-soft); color: var(--positive); border-color: var(--positive-line); }
.tag--caution { background: var(--caution-soft); color: var(--caution); border-color: var(--caution-line); }
.tag--critical { background: var(--critical-soft); color: var(--critical); border-color: var(--critical-line); }

.empty {
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--ink-faint);
}

.empty h3 { color: var(--ink); }

/* ------------------------------------------------------- question editor */

.question-list { list-style: none; margin: 0; padding: 0; }

.question-list li + li { border-top: 1px solid var(--line); }

.question-row {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: .9rem 1.25rem;
}

.question-row__main { flex: 1; min-width: 0; }
.question-row__label { font-weight: 550; }
.question-row__meta { display: flex; gap: .4rem; flex-wrap: wrap; margin-top: .35rem; }
.question-row__actions { display: flex; gap: .25rem; align-items: center; }

/* Conditional children are indented under their parent. */
.question-list--nested {
  margin-left: 1.5rem;
  border-left: 2px solid var(--accent-line);
}

.question-list--nested .question-row { padding-left: 1rem; }

/* ---------------------------------------------------------- public site */

.public-body { background: var(--surface-sunken); }

.public-shell {
  max-width: 44rem;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 5rem;
}

.event-hero {
  text-align: center;
  margin-bottom: 2rem;
}

.event-hero h1 { font-size: 2.25rem; letter-spacing: -.03em; }

.event-hero__meta {
  color: var(--ink-soft);
  display: flex;
  gap: .5rem 1.25rem;
  justify-content: center;
  flex-wrap: wrap;
  font-size: .9375rem;
}

.event-hero__description { color: var(--ink-soft); margin-top: 1rem; }

.card {
  background: var(--surface-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 1.75rem;
}

.card + .card { margin-top: 1.25rem; }

.guest-block {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem;
  background: var(--surface);
}

.guest-block + .guest-block { margin-top: 1rem; }

.guest-block__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  margin-bottom: 1rem;
}

.guest-block__title { font-weight: 600; font-size: .8125rem; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-faint); }

.section-heading {
  font-size: .8125rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--ink-faint);
  font-weight: 600;
  margin: 0 0 .75rem;
}

/* Conditional questions are revealed by the form controller. */
[data-conditional-hidden] { display: none; }

.error-summary {
  background: var(--critical-soft);
  border: 1px solid var(--critical-line);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  color: var(--critical);
}

.error-summary ul { margin: .5rem 0 0; padding-left: 1.1rem; }

.confirmation-mark {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--positive-soft);
  color: var(--positive);
  display: grid; place-items: center;
  font-size: 1.5rem;
  margin: 0 auto 1rem;
}

.public-footer {
  text-align: center;
  color: var(--ink-faint);
  font-size: .8125rem;
  margin-top: 2rem;
}

/* --------------------------------------------------------- signed out */

.auth-shell {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 2rem 1.25rem;
}

.auth-card { width: 100%; max-width: 26rem; }
.auth-card .card { padding: 2rem; }
.auth-header { text-align: center; margin-bottom: 1.5rem; }
.auth-footer { text-align: center; margin-top: 1.25rem; font-size: .875rem; color: var(--ink-faint); }

@media (max-width: 640px) {
  h1 { font-size: 1.5rem; }
  .event-hero h1 { font-size: 1.75rem; }
  .card { padding: 1.25rem; }
  .masthead__inner { flex-wrap: wrap; padding-top: .5rem; padding-bottom: .5rem; gap: .5rem 1rem; }
}