:root {
  --bg: #f5f6f8;
  --panel: #ffffff;
  --ink: #1f2933;
  --muted: #6b7280;
  --accent: #1d4ed8;
  --accent-ink: #ffffff;
  --danger: #b91c1c;
  --border: #d1d5db;
  --radius: 6px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.4;
}

.container {
  max-width: 820px;
  margin: 0 auto;
  padding: 1.5rem 1rem 4rem;
}

.page-header {
  text-align: center;
  margin-bottom: 1.5rem;
}

.page-header .logo {
  max-height: 72px;
  max-width: 200px;
  margin-bottom: 0.5rem;
}

.page-header h1 {
  margin: 0 0 0.25rem;
  font-size: 1.6rem;
}

.summer-name {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
}

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

.panel h2 {
  margin: 0 0 0.75rem;
  font-size: 1.15rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.4rem;
}

.subpanel {
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--border);
}

.subpanel h4 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem 1rem;
}

.grid label.span2 { grid-column: 1 / -1; }

@media (max-width: 520px) {
  .grid { grid-template-columns: 1fr; }
  .grid label.span2 { grid-column: 1; }
}

label {
  display: flex;
  flex-direction: column;
  font-size: 0.9rem;
  color: var(--muted);
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="date"],
input[type="number"],
select,
textarea {
  font: inherit;
  padding: 0.45rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  margin-top: 0.2rem;
}

input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}

textarea { resize: vertical; }

.hint {
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0.5rem 0;
}

/* Gender gate */
.gender-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.5rem;
}
.gender-buttons .btn { min-width: 160px; }

/* Sessions checkboxes (reused from camp-form) */
.sessions-list {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.session-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
}
.session-row .session-dates {
  color: var(--muted);
  font-size: 0.85rem;
  margin-left: auto;
}

/* Question cards */
.question-card {
  margin-bottom: 0.75rem;
}
.question-card:last-child { margin-bottom: 0; }

.question-label {
  display: block;
  font-size: 0.95rem;
  color: var(--ink);
  margin-bottom: 0.25rem;
}
.question-label .required-marker { color: var(--danger); }

.question-input {
  width: 100%;
}

/* Reference cards */
.reference-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 0.75rem;
  background: #fcfcfd;
}
.reference-card:last-child { margin-bottom: 0; }

.reference-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.reference-header h3 {
  margin: 0;
  font-size: 1.05rem;
}

/* Avatar upload (optional) */
.avatar-field {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.avatar-preview {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  flex: 0 0 auto;
}

.avatar-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.avatar-placeholder {
  font-size: 0.75rem;
  color: #64748b;
}

.avatar-controls {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.4rem;
  flex: 1 1 220px;
}

.avatar-choose-btn {
  display: inline-block;
}

.avatar-hint {
  margin: 0;
}

/* Submit bar + buttons */
.submit-bar {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  margin-top: 1rem;
}

.btn {
  display: inline-block;
  font: inherit;
  padding: 0.55rem 1rem;
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  cursor: pointer;
  background: var(--accent);
  color: var(--accent-ink);
  text-decoration: none;
}

.btn.secondary {
  background: #fff;
  color: var(--accent);
}

.btn.link {
  background: transparent;
  border: none;
  color: var(--accent);
  padding: 0.2rem 0.3rem;
  text-decoration: underline;
  cursor: pointer;
}

.btn.primary { min-width: 220px; }

.btn[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
}

.validation-error {
  color: var(--danger);
  font-size: 0.85rem;
  margin-top: 0.25rem;
}

/* Prominent error block used for the global submit-error at the bottom of
   the form. Adds an icon, padding and a coloured background so an applicant
   who gets bounced by validation can actually see what's wrong. */
.validation-error.is-prominent {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 1rem;
  font-weight: 500;
  padding: 0.75rem 1rem;
  border: 1px solid var(--danger);
  border-radius: var(--radius);
  background: #fef2f2;
  color: var(--danger);
  margin-top: 0.75rem;
}

.validation-error.is-prominent::before {
  content: "!";
  flex: 0 0 1.4rem;
  height: 1.4rem;
  line-height: 1.4rem;
  text-align: center;
  border-radius: 50%;
  background: var(--danger);
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
}

input.is-invalid,
select.is-invalid,
textarea.is-invalid {
  border-color: var(--danger);
  outline-color: var(--danger);
  background: #fef2f2;
}

input.is-invalid:focus,
select.is-invalid:focus,
textarea.is-invalid:focus {
  outline: 2px solid var(--danger);
  border-color: var(--danger);
}

.panel.success {
  border-left: 4px solid #16a34a;
}

/* Reference form — radio option groups under each dynamic question */
.option-group {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  margin: 0.35rem 0 0.5rem;
}

.option-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  font-size: 0.95rem;
}

.option-row input[type="radio"] {
  margin: 0;
}

.explain-label {
  display: block;
  margin-top: 0.3rem;
}

.explain-label .explain-text {
  font-size: 0.85rem;
  color: var(--muted);
}

.kezhub-footer {
  text-align: center;
  margin: 1.5rem auto 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.kezhub-footer a {
  color: var(--muted);
  text-decoration: none;
}

.kezhub-footer a:hover {
  text-decoration: underline;
}