/* Schut house style placeholders: replace colours/logo via settings.BRANDING and static/img. */
:root {
  --brand: #1d4e89;
  --brand-dark: #133660;
  --accent: #e07a1f;
  --text: #1f2933;
  --muted: #52606d;
  --border: #c7ced6;
  --bg: #f4f5f7;
  --surface: #ffffff;
  --error: #b42318;
  --error-bg: #fef3f2;
  --success: #067647;
  --success-bg: #ecfdf3;
  --warning-bg: #fffaeb;
  --warning: #93370d;
  --focus: #ffbf47;
  --radius: 6px;
}

* { box-sizing: border-box; }
html { font-size: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
}
.container { max-width: 50rem; margin: 0 auto; padding: 0 1rem; }
a { color: var(--brand); }
a:hover { color: var(--brand-dark); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
main:focus { outline: none; }

.skip-link { position: absolute; left: -999px; top: 0; background: var(--surface); padding: .5rem 1rem; z-index: 10; }
.skip-link:focus { left: 1rem; }

.site-header { background: var(--surface); border-top: 5px solid var(--brand); border-bottom: 1px solid var(--border); margin-bottom: 1.5rem; }
.header-inner { display: flex; align-items: center; gap: 1rem; padding-top: .75rem; padding-bottom: .75rem; flex-wrap: wrap; }
.logo { height: 40px; width: auto; }
.conference-name { margin: 0; font-weight: 600; color: var(--brand); }
.site-footer { margin-top: 3rem; padding: 1.5rem 0; color: var(--muted); font-size: .9rem; border-top: 1px solid var(--border); background: var(--surface); }

main { background: var(--surface); border-radius: var(--radius); padding-top: 1.5rem; padding-bottom: 2rem; }
@media (min-width: 52rem) { main { padding-left: 2rem; padding-right: 2rem; } }

h1 { font-size: 1.75rem; line-height: 1.25; color: var(--brand); margin-top: 0; }
h2 { font-size: 1.3rem; color: var(--brand); }
.lead { font-size: 1.1rem; }

.price-box { border: 2px solid var(--brand); border-radius: var(--radius); padding: 1rem 1.25rem; margin: 1.5rem 0; background: #f5f8fc; }
.price-box h2 { margin-top: 0; }
.price { font-size: 1.2rem; margin: .25rem 0; }
.early-bird { color: var(--success); font-weight: 600; }

.form .group { border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.25rem; margin: 0 0 1.5rem; }
.form .group > legend { font-weight: 700; font-size: 1.15rem; padding: 0 .4rem; color: var(--brand); }
.field { margin-bottom: 1rem; }
.field label, .field legend { display: block; font-weight: 600; margin-bottom: .3rem; }
.field fieldset { border: 0; padding: 0; margin: 0; }
.field input[type=text], .field input[type=email], .field input[type=number], .field textarea, .field select {
  width: 100%; max-width: 32rem; font: inherit; padding: .55rem .65rem; border: 1px solid #8a96a3; border-radius: 4px; background: #fff;
}
.field textarea { max-width: 100%; }
.field .radio, .field .checkbox, .option { display: flex; align-items: flex-start; gap: .5rem; margin: .3rem 0; }
.field .radio label, .field .checkbox label { font-weight: 400; margin: 0; }
input[type=radio], input[type=checkbox] { width: 1.2rem; height: 1.2rem; margin-top: .2rem; flex: none; accent-color: var(--brand); }
.req { color: var(--error); }
.optional { font-weight: 400; color: var(--muted); font-size: .9rem; }
.help { color: var(--muted); font-size: .92rem; margin: .25rem 0 0; }
.has-error input, .has-error textarea, .has-error select { border-color: var(--error); border-width: 2px; }
.errors { color: var(--error); font-weight: 600; }
.errors p { margin: .25rem 0 0; }

.notice { padding: .75rem 1rem; border-radius: var(--radius); border-left: 5px solid; margin: 1rem 0; }
.notice-error { background: var(--error-bg); border-color: var(--error); color: var(--error); }
.notice-success { background: var(--success-bg); border-color: var(--success); color: var(--success); }
.notice-warning, .notice-info { background: var(--warning-bg); border-color: var(--accent); color: var(--warning); }

.button { display: inline-block; font: inherit; font-weight: 600; padding: .7rem 1.4rem; border-radius: var(--radius); border: 2px solid var(--brand); cursor: pointer; text-decoration: none; }
.button-primary { background: var(--brand); color: #fff; }
.button-primary:hover { background: var(--brand-dark); color: #fff; }
.button-secondary { background: #fff; color: var(--brand); }
.button-link { background: none; border: none; color: var(--brand); text-decoration: underline; padding: 0; cursor: pointer; font: inherit; }

.registration-number { font-size: 1.3rem; }

.session-list { list-style: none; padding: 0; margin: 0; }
.session-card { border: 1px solid var(--border); border-radius: var(--radius); padding: .85rem 1rem; margin-bottom: .75rem; }
.session-card label { display: flex; gap: .75rem; align-items: flex-start; cursor: pointer; }
.session-card .title { font-weight: 700; }
.session-card .meta { color: var(--muted); font-size: .92rem; }
.session-card .desc { margin: .35rem 0 0; }
.session-card.is-full { background: #f6f6f6; }
.session-card.is-selected { border-color: var(--brand); border-width: 2px; }
.badge { display: inline-block; font-size: .8rem; font-weight: 700; padding: .1rem .5rem; border-radius: 999px; margin-left: .35rem; }
.badge-full { background: var(--error-bg); color: var(--error); border: 1px solid var(--error); }
.badge-available { background: var(--success-bg); color: var(--success); border: 1px solid var(--success); }
.badge-current { background: #e8f0fa; color: var(--brand); border: 1px solid var(--brand); }
.round { border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.25rem; margin-bottom: 1.5rem; }
.round > legend { font-weight: 700; font-size: 1.15rem; color: var(--brand); padding: 0 .4rem; }
.summary-table { border-collapse: collapse; width: 100%; }
.summary-table th, .summary-table td { text-align: left; padding: .5rem; border-bottom: 1px solid var(--border); vertical-align: top; }
.phase { border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.25rem; margin-bottom: 1.25rem; }
.phase h2 { margin-top: 0; }
.status-tag { font-size: .85rem; font-weight: 700; text-transform: uppercase; letter-spacing: .03em; }
.status-open { color: var(--success); }
.status-closed { color: var(--muted); }
[hidden] { display: none !important; }