:root {
  --navy: #003366;
  --navy-2: #1e3a5f;
  --slate-900: #0f172a;
  --slate-700: #334155;
  --slate-500: #64748b;
  --slate-300: #cbd5e1;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --slate-50: #f8fafc;
  --red: #dc2626;
  --red-light: #fee2e2;
  --green: #16a34a;
  --green-light: #dcfce7;
  --blue-light: #dbeafe;
}

* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  color: var(--slate-900);
  background: var(--slate-50);
  font-size: 14px;
  line-height: 1.45;
}

.ext-shell { min-height: 100vh; background: var(--slate-50); padding: 32px 20px 60px; }
.ext-container { max-width: 820px; margin: 0 auto; }

.ext-header {
  background: var(--navy); color: #fff;
  padding: 18px 24px;
  border-radius: 10px 10px 0 0;
  border: 1px solid var(--navy);
}
.ext-header h1 { margin: 0; font-size: 20px; font-weight: 600; line-height: 1.25; }
.ext-header .brand-pill {
  display: inline-block;
  padding: 2px 10px;
  background: rgba(255,255,255,0.15);
  border-radius: 999px;
  font-size: 11px;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.ext-card {
  background: #fff;
  border: 1px solid var(--slate-200);
  border-top: none;
  padding: 16px 24px;
}
.ext-card:last-of-type { border-radius: 0 0 10px 10px; }
.ext-card h3 {
  margin: 0 0 16px;
  font-size: 12.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--slate-700);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--slate-100);
}

.row { display: grid; gap: 16px 22px; margin-bottom: 14px; }
.row:last-child { margin-bottom: 0; }
.row.r-2 { grid-template-columns: 1fr 1fr; }
.row.r-3-1 { grid-template-columns: 3fr 1fr; }

.field { display: flex; flex-direction: column; gap: 5px; }
.field label { font-size: 12.5px; font-weight: 600; color: var(--slate-700); }
.field .hint { font-size: 11.5px; color: var(--slate-500); }
.field .hint.warn { color: var(--red); font-weight: 600; }
.req { color: var(--red); }

input[type=text], input[type=email], input[type=tel], input[type=password],
input[type=number], input[type=search], textarea, select {
  width: 100%;
  padding: 7px 10px;
  border: 1px solid var(--slate-300);
  border-radius: 5px;
  font-size: 13px;
  font-family: inherit;
  background: #fff;
  color: var(--slate-900);
}
input:disabled { background: var(--slate-100); color: var(--slate-500); }
textarea { resize: vertical; min-height: 70px; }

.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 18px;
  font-size: 13px;
  border-radius: 6px;
  border: 1px solid var(--slate-300);
  background: #fff;
  color: var(--slate-900);
  cursor: pointer;
  text-decoration: none;
  font-family: inherit;
  font-weight: 500;
}
.btn:hover { background: var(--slate-50); }
.btn-primary { background: var(--navy); border-color: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--navy-2); color: #fff; }
.btn-primary:disabled { opacity: 0.6; cursor: progress; }
.btn-block { width: 100%; justify-content: center; padding: 11px 18px; }

/* Call Type radio grid */
.call-type-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.call-type-opt {
  padding: 14px 16px;
  border: 1px solid var(--slate-200);
  border-radius: 8px;
  cursor: pointer;
  display: flex; gap: 10px; align-items: flex-start;
  background: #fff;
}
.call-type-opt:hover { background: var(--slate-50); }
.call-type-opt.selected { background: var(--blue-light); border-color: var(--navy); }
.call-type-opt input[type=radio] { width: auto; margin-top: 3px; }
.call-type-opt .ct-title { font-weight: 600; font-size: 13.5px; color: var(--slate-900); }
.call-type-opt .ct-sub { font-size: 11.5px; color: var(--slate-500); margin-top: 3px; line-height: 1.4; }

/* Email Yes/No */
.email-row { display: grid; grid-template-columns: auto 1fr; gap: 16px; align-items: center; }
.email-yesno { display: flex; gap: 14px; }
.email-yesno label { font-weight: 400; font-size: 13px; display: flex; gap: 6px; align-items: center; }
.email-yesno input { width: auto; }

/* Conditional reveal */
.cond { display: none; }
.cond.active { display: block; }

/* Slot list */
.slot-list { border: 1px solid var(--slate-200); border-radius: 10px; overflow: hidden; }
.picker-toolbar {
  padding: 10px 14px;
  background: var(--slate-50);
  border-bottom: 1px solid var(--slate-200);
  display: flex;
  gap: 10px;
  align-items: center;
}
.picker-toolbar label {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--slate-700);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  margin: 0;
}
.picker-toolbar select {
  padding: 6px 10px;
  border: 1px solid var(--slate-300);
  border-radius: 5px;
  font-size: 12.5px;
  background: #fff;
  width: auto;
  min-width: 220px;
}
.picker-toolbar .scope-note {
  margin-left: auto;
  font-size: 11.5px;
  color: var(--slate-500);
}
.slot {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 14px;
  row-gap: 3px;
  padding: 14px 18px;
  cursor: pointer;
  border-bottom: 1px solid var(--slate-100);
  align-items: start;
}
.slot:last-child { border-bottom: none; }
.slot:hover { background: var(--slate-50); }
.slot.selected { background: var(--blue-light); border-left: 3px solid var(--navy); padding-left: 15px; }
.slot input[type=radio] { grid-column: 1; grid-row: 1 / span 3; width: auto; margin-top: 3px; align-self: start; }
.slot-when  { grid-column: 2; grid-row: 1; font-weight: 600; font-size: 14px; color: var(--slate-900); font-variant-numeric: tabular-nums; }
.slot-loc   { grid-column: 2; grid-row: 2; font-size: 13px; color: var(--slate-700); }
.slot-where { grid-column: 2; grid-row: 3; font-size: 12.5px; color: var(--slate-500); line-height: 1.5; min-height: 18px; }
.slot-loading, .slot-empty {
  padding: 20px 18px;
  font-size: 13px;
  color: var(--slate-500);
  text-align: center;
}

/* Checkbox row */
.checkbox-row { display: flex; gap: 8px; align-items: center; }
.checkbox-row input { width: auto; margin: 0; }

/* Submit row */
.submit-row {
  background: #fff;
  border: 1px solid var(--slate-200);
  border-radius: 8px;
  padding: 18px 24px;
  display: flex; justify-content: flex-end;
  margin-top: 18px;
}

/* Form-level error banner */
.form-error {
  background: var(--red-light);
  color: var(--red);
  border: 1px solid var(--red);
  padding: 12px 18px;
  border-radius: 6px;
  margin-top: 14px;
  font-size: 13px;
  font-weight: 500;
}

/* Login surface */
.login-card {
  max-width: 420px;
  margin: 80px auto 0;
  background: #fff;
  border: 1px solid var(--slate-200);
  border-radius: 10px;
  padding: 28px;
}
.login-brand { text-align: center; margin-bottom: 24px; }
.login-brand .brand-pill {
  display: inline-block;
  padding: 3px 12px;
  background: var(--navy);
  color: #fff;
  border-radius: 999px;
  font-size: 11px;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.login-brand h1 { margin: 0 0 4px; font-size: 20px; font-weight: 600; }
.login-brand p { margin: 0; color: var(--slate-500); font-size: 13px; }
.login-form { display: flex; flex-direction: column; gap: 16px; }
.login-error {
  background: var(--red-light);
  color: var(--red);
  padding: 10px 12px;
  border-radius: 5px;
  font-size: 12.5px;
  font-weight: 500;
}

/* Confirmation page */
.readback-note {
  margin: 0 0 14px;
  font-size: 12.5px;
  color: var(--slate-500);
  font-style: italic;
}
.readback {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 8px 18px;
  margin: 0;
}
.readback dt {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--slate-700);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  padding: 8px 0;
  align-self: center;
}
.readback dd {
  margin: 0;
  font-size: 15px;
  color: var(--slate-900);
  padding: 8px 0;
  font-variant-numeric: tabular-nums;
}
.readback dt.section-break {
  grid-column: 1 / -1;
  margin-top: 14px;
  padding: 8px 0 4px;
  border-bottom: 1px solid var(--slate-100);
  color: var(--navy);
  font-size: 11px;
}
.readback dd.section-break-spacer { display: none; }
.readback-internal {
  margin: 0;
  font-size: 13.5px;
  color: var(--slate-700);
  background: var(--slate-50);
  padding: 12px 14px;
  border-left: 3px solid var(--slate-300);
  border-radius: 0 4px 4px 0;
  white-space: pre-wrap;
}