/* Ace the Academia - student registration form.
   Plain CSS, no build step: the interface can drop these three files
   anywhere and they will work. */

:root {
  --ink: #16202e;
  --ink-soft: #5a6a7d;
  --line: #dde3ea;
  --field: #ffffff;
  --page: #f4f6f9;
  --card: #ffffff;

  --brand: #1a56a8;
  --brand-ink: #ffffff;
  --brand-soft: #eaf1fb;

  --bad: #b32233;
  --bad-soft: #fdeced;
  --good: #1c7a4b;
  --good-soft: #e7f5ee;

  --radius: 10px;
  --shadow: 0 1px 2px rgba(22, 32, 46, .06), 0 8px 24px rgba(22, 32, 46, .06);
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e8edf4;
    --ink-soft: #9aa8ba;
    --line: #2c3746;
    --field: #161d27;
    --page: #0e131a;
    --card: #141b24;

    --brand: #5b9bf0;
    --brand-ink: #08101c;
    --brand-soft: #182740;

    --bad: #ff8a95;
    --bad-soft: #2c161a;
    --good: #6ddba2;
    --good-soft: #12251c;

    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .3);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 0;
  background: var(--page);
  color: var(--ink);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.page {
  max-width: 46rem;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}

/* ---------- masthead ---------- */

.masthead { margin-bottom: 1.75rem; }

.brand {
  margin: 0 0 .35rem;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--brand);
}

h1 {
  margin: 0 0 .4rem;
  font-size: 1.9rem;
  line-height: 1.2;
  letter-spacing: -.02em;
}

.lede {
  margin: 0;
  max-width: 34rem;
  color: var(--ink-soft);
}

/* ---------- card ---------- */

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
}

fieldset {
  margin: 0 0 1.75rem;
  padding: 0;
  border: 0;
}

fieldset:last-of-type { margin-bottom: 1.25rem; }

legend {
  padding: 0 0 .9rem;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

/* ---------- choosing a track ---------- */

.chooser h2 {
  margin: 0 0 1rem;
  font-size: 1.05rem;
}

.tracks {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .85rem;
}

@media (max-width: 34rem) {
  .tracks { grid-template-columns: 1fr; }
}

.track {
  display: block;
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  color: var(--ink);
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.track:hover { border-color: var(--brand); background: var(--brand-soft); filter: none; }

.track-icon { display: block; font-size: 1.5rem; margin-bottom: .5rem; }

.track strong { display: block; margin-bottom: .25rem; font-size: 1rem; }

.track span { font-size: .85rem; color: var(--ink-soft); }

/* ---------- progress ---------- */

.stepper { margin-bottom: 1rem; }

.stepper ol {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.stepper li {
  position: relative;
  padding-left: 1.7rem;
  font-size: .85rem;
  color: var(--ink-soft);
  counter-increment: step;
}

.stepper li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: -.05rem;
  width: 1.25rem;
  height: 1.25rem;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--card);
  font-size: .72rem;
  font-weight: 600;
  line-height: 1.2rem;
  text-align: center;
}

.stepper li.current { color: var(--ink); font-weight: 600; }

.stepper li.current::before {
  border-color: var(--brand);
  background: var(--brand);
  color: var(--brand-ink);
}

.stepper li.past::before {
  content: "\2713";
  border-color: var(--good);
  background: var(--good-soft);
  color: var(--good);
}

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

.panel-title {
  margin: 0 0 .25rem;
  font-size: 1.15rem;
  letter-spacing: -.01em;
}

.panel-hint { margin: 0 0 1.25rem; }

.panel-title + .row,
.panel-title + .field { margin-top: 1.25rem; }

.subhead {
  margin: 1.75rem 0 1rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.subhead + .panel-hint { margin-top: -.5rem; }

/* ---------- fields ---------- */

.row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 34rem) {
  .row { grid-template-columns: 1fr; }
}

.field { margin-bottom: 1rem; }

label,
.label-as-text {
  display: block;
  margin-bottom: .35rem;
  font-size: .9rem;
  font-weight: 600;
}

.req { color: var(--bad); }

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="date"],
input[type="number"],
input[type="password"],
select {
  width: 100%;
  padding: .6rem .7rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--field);
  color: var(--ink);
  font: inherit;
  /* Stops iOS Safari zooming in when a field takes focus. */
  font-size: 1rem;
}

input:focus-visible,
select:focus-visible,
button:focus-visible,
.choice:focus-within {
  outline: 2px solid var(--brand);
  outline-offset: 1px;
}

input[aria-invalid="true"],
select[aria-invalid="true"] {
  border-color: var(--bad);
  background: var(--bad-soft);
}

.hint {
  margin: .35rem 0 0;
  font-size: .82rem;
  font-weight: 400;
  color: var(--ink-soft);
}

legend + .hint { margin: -.4rem 0 1rem; }

.error {
  margin: .35rem 0 0;
  font-size: .82rem;
  font-weight: 500;
  color: var(--bad);
}

/* ---------- attendance choices ---------- */

.choices {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: .6rem;
}

@media (max-width: 34rem) {
  .choices { grid-template-columns: 1fr; }
}

.choice {
  display: flex;
  gap: .55rem;
  align-items: flex-start;
  margin: 0;
  padding: .7rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-weight: 400;
  cursor: pointer;
}

.choice:has(input:checked) {
  border-color: var(--brand);
  background: var(--brand-soft);
}

.choice input { margin: .2rem 0 0; accent-color: var(--brand); }

.choice span { display: block; font-size: .85rem; color: var(--ink-soft); }

.choice strong {
  display: block;
  font-size: .92rem;
  font-weight: 600;
  color: var(--ink);
}

.show-password {
  display: flex;
  align-items: center;
  gap: .45rem;
  margin: 0;
  font-size: .88rem;
  font-weight: 400;
  color: var(--ink-soft);
  cursor: pointer;
}

.show-password input { accent-color: var(--brand); }

/* ---------- subjects ---------- */

.subjects {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(13rem, 1fr));
  gap: .5rem;
}

.subject {
  display: flex;
  align-items: center;
  gap: .55rem;
  margin: 0;
  padding: .6rem .7rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-weight: 400;
  font-size: .9rem;
  cursor: pointer;
}

.subject:has(input:checked) {
  border-color: var(--brand);
  background: var(--brand-soft);
  font-weight: 600;
}

.subject input { accent-color: var(--brand); flex: none; }

.chosen {
  margin: .75rem 0 0;
  font-size: .85rem;
  font-weight: 600;
  color: var(--brand);
}

/* ---------- guardians ---------- */

.guardian {
  margin: 0 0 1rem;
  padding: 1rem 1rem .5rem;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.guardian legend {
  display: flex;
  align-items: baseline;
  gap: .75rem;
  padding: 0 .4rem;
  text-transform: none;
  letter-spacing: 0;
  font-size: .9rem;
  color: var(--ink);
}

.guardian .guardian-number { font-weight: 700; }

.remove-guardian {
  padding: 0;
  border: 0;
  background: none;
  color: var(--ink-soft);
  font: inherit;
  font-size: .82rem;
  text-decoration: underline;
  cursor: pointer;
}

.remove-guardian:hover { color: var(--bad); filter: none; }

button.small { padding: .45rem 1rem; font-size: .88rem; }

/* ---------- actions ---------- */

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}

button {
  padding: .65rem 1.5rem;
  border: 0;
  border-radius: 8px;
  background: var(--brand);
  color: var(--brand-ink);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

button:hover:not(:disabled) { filter: brightness(1.08); }

button:disabled { opacity: .6; cursor: progress; }

button.secondary {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink);
}

.fineprint {
  flex: 1 1 16rem;
  margin: 0;
  font-size: .8rem;
  color: var(--ink-soft);
}

/* ---------- alert ---------- */

.alert {
  margin-bottom: 1.25rem;
  padding: .8rem .9rem;
  border: 1px solid var(--bad);
  border-radius: 8px;
  background: var(--bad-soft);
  color: var(--bad);
  font-size: .9rem;
  font-weight: 500;
}

/* ---------- the confirmation ---------- */

.done { text-align: center; }

.tick {
  width: 3rem;
  height: 3rem;
  margin: .25rem auto 1rem;
  border-radius: 50%;
  background: var(--good-soft);
  color: var(--good);
  font-size: 1.6rem;
  line-height: 3rem;
}

.done h2 { margin: 0 0 .3rem; font-size: 1.4rem; }

.done-name { margin: 0 0 1.5rem; color: var(--ink-soft); }

.summary {
  display: grid;
  gap: .1rem;
  margin: 0 0 1.25rem;
  padding: .9rem 1rem;
  border-radius: 8px;
  background: var(--page);
  text-align: left;
}

.summary > div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: .35rem 0;
}

.summary dt { font-size: .88rem; color: var(--ink-soft); }

.summary dd {
  margin: 0;
  font-size: .88rem;
  font-weight: 600;
  text-align: right;
  overflow-wrap: anywhere;
}

.note {
  margin: 0 0 1.25rem;
  font-size: .88rem;
  color: var(--ink-soft);
}