/* ICLD 2027 Registration System — shared styles
   Palette mirrors the main site (css/style.css). Self-contained so the
   system can be embedded on any page or hosted independently. */

:root {
  --primary: #0f2c52;
  --primary-700: #163b6c;
  --accent: #2563eb;
  --accent-700: #1d4ed8;
  --ai: #0891b2;
  --highlight: #d97706;
  --highlight-50: #fffbeb;
  --ok: #059669;
  --err: #dc2626;
  --bg: #f7f9fc;
  --bg-subtle: #f1f5f9;
  --surface: #ffffff;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;
  --text: #0f172a;
  --text-muted: #475569;
  --text-soft: #64748b;
  --radius-sm: 8px;
  --radius: 14px;
  --shadow-sm: 0 1px 2px rgba(15,23,42,.04), 0 1px 3px rgba(15,23,42,.06);
  --shadow: 0 4px 12px rgba(15,23,42,.06), 0 2px 4px rgba(15,23,42,.04);
  --shadow-lg: 0 12px 32px rgba(15,23,42,.08);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  color: var(--text);
  background: transparent;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.reg-wrap { max-width: 760px; margin: 0 auto; padding: 1.25rem; }
.admin-wrap { max-width: 1000px; margin: 0 auto; padding: 1.25rem; }

h1, h2, h3 { font-family: 'Manrope', 'Inter', sans-serif; color: var(--primary); line-height: 1.25; letter-spacing: -0.01em; }
h1 { font-size: 1.6rem; }
h2 { font-size: 1.2rem; }
h3 { font-size: 1rem; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 1.5rem;
  margin-bottom: 1.25rem;
}

.intro { color: var(--text-muted); margin-top: .35rem; }

/* Fields */
.field { margin-bottom: 1.15rem; }
.field > label.q {
  display: block;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: .4rem;
  font-size: .95rem;
}
.field .req { color: var(--err); margin-left: 2px; }
.field .help { display: block; font-weight: 400; color: var(--text-soft); font-size: .82rem; margin-top: .15rem; }

input[type=text], input[type=email], input[type=tel], input[type=number],
input[type=password], select, textarea {
  width: 100%;
  padding: .65rem .8rem;
  font: inherit;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37,99,235,.15);
}
textarea { min-height: 96px; resize: vertical; }

.opt-list { display: grid; gap: .5rem; }
.opt {
  display: flex; align-items: flex-start; gap: .6rem;
  padding: .6rem .8rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.opt:hover { border-color: var(--border-strong); background: var(--bg-subtle); }
.opt.sel { border-color: var(--accent); background: var(--accent-50, #eff6ff); }
.opt input { margin-top: .25rem; flex-shrink: 0; width: auto; }
.opt .opt-label { flex: 1; }
.opt .price { color: var(--accent); font-weight: 600; white-space: nowrap; }

.section-head { margin: 1.5rem 0 .75rem; padding-bottom: .4rem; border-bottom: 2px solid var(--border); }
.section-head h3 { color: var(--primary); }
.section-head p { color: var(--text-soft); font-size: .88rem; margin-top: .1rem; }

/* Fee summary */
.fee-box {
  position: sticky; bottom: 0;
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; margin-top: 1rem;
  box-shadow: var(--shadow-lg);
}
.fee-box .lbl { font-size: .85rem; color: #cbd5e1; }
.fee-box .amt { font-family: 'Manrope', sans-serif; font-size: 1.5rem; font-weight: 800; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
  font: inherit; font-weight: 600;
  padding: .7rem 1.4rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background .15s, transform .15s, box-shadow .15s;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-700); }
.btn-primary:disabled { opacity: .55; cursor: not-allowed; }
.btn-light { background: #fff; color: var(--accent); border-color: #fff; }
.btn-ghost { background: transparent; color: var(--text-muted); border-color: var(--border-strong); }
.btn-ghost:hover { background: var(--bg-subtle); }
.btn-danger { background: transparent; color: var(--err); border-color: var(--border-strong); }
.btn-danger:hover { background: #fef2f2; border-color: var(--err); }
.btn-sm { padding: .35rem .7rem; font-size: .82rem; }

.actions { display: flex; gap: .6rem; flex-wrap: wrap; margin-top: 1.25rem; }

/* Notes / alerts */
.note {
  padding: .8rem 1rem; border-radius: var(--radius-sm); font-size: .9rem;
  display: flex; gap: .5rem; align-items: flex-start;
}
.note.warn { background: var(--highlight-50); border-left: 3px solid var(--highlight); color: var(--text-muted); }
.note.info { background: #ecfeff; border-left: 3px solid var(--ai); color: var(--text-muted); }
.note strong { color: inherit; }

.msg { padding: .75rem 1rem; border-radius: var(--radius-sm); font-size: .9rem; margin-bottom: 1rem; display: none; }
.msg.show { display: block; }
.msg.error { background: #fef2f2; color: var(--err); border: 1px solid #fecaca; }
.msg.success { background: #ecfdf5; color: var(--ok); border: 1px solid #a7f3d0; }

.center { text-align: center; }
.muted { color: var(--text-muted); }
.hidden { display: none !important; }
.spinner { display: inline-block; width: 18px; height: 18px; border: 2px solid rgba(255,255,255,.4); border-top-color: #fff; border-radius: 50%; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Admin builder */
.tabs { display: flex; gap: .5rem; margin-bottom: 1.25rem; border-bottom: 1px solid var(--border); }
.tab { padding: .6rem 1rem; cursor: pointer; border: none; background: none; font: inherit; font-weight: 600; color: var(--text-soft); border-bottom: 2px solid transparent; }
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }

.fb-field { border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 1rem; margin-bottom: .85rem; background: var(--surface); }
.fb-field .row { display: grid; grid-template-columns: 1fr 180px; gap: .75rem; }
.fb-row { display: flex; gap: .6rem; align-items: center; flex-wrap: wrap; }
.fb-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: .6rem; gap: .5rem; }
.fb-head .grab { color: var(--text-soft); font-size: .82rem; }
.fb-opts { margin-top: .6rem; padding-top: .6rem; border-top: 1px dashed var(--border); }
.fb-opt { display: grid; grid-template-columns: 1fr 110px auto; gap: .5rem; margin-bottom: .4rem; align-items: center; }
label.inline { display: inline-flex; align-items: center; gap: .4rem; font-size: .88rem; color: var(--text-muted); font-weight: 500; }
label.inline input { width: auto; }
small.field-label { display: block; font-size: .78rem; color: var(--text-soft); margin-bottom: .2rem; text-transform: uppercase; letter-spacing: .03em; }

table.sub { width: 100%; border-collapse: collapse; font-size: .85rem; }
table.sub th, table.sub td { text-align: left; padding: .5rem .6rem; border-bottom: 1px solid var(--border); vertical-align: top; }
table.sub th { background: var(--bg-subtle); color: var(--primary); position: sticky; top: 0; }
.table-scroll { overflow: auto; max-height: 60vh; border: 1px solid var(--border); border-radius: var(--radius-sm); }

.toolbar { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-bottom: 1rem; flex-wrap: wrap; }
.pill { font-size: .78rem; padding: .15rem .55rem; border-radius: 999px; background: var(--bg-subtle); color: var(--text-muted); }

@media (max-width: 560px) {
  .fb-field .row { grid-template-columns: 1fr; }
  .fee-box { flex-direction: column; align-items: stretch; text-align: center; }
}