:root {
  --byc-black: #1A1A1A;
  --byc-yellow: #F5C518;
  --byc-light-yellow: #FFF9DC;
  --byc-gold: #D4A017;
  --byc-gray: #333333;
  --byc-light-gray: #F4F4F4;
  --white: #FFFFFF;
}

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

body {
  font-family: 'Arial', sans-serif;
  background: #EFEFEF;
  color: var(--byc-gray);
  padding: 32px 16px 60px;
}

.page-wrapper {
  max-width: 760px;
  margin: 0 auto;
}

/* ── Header ────────────────────────────────────────────────────────────── */
.header {
  background: var(--byc-black);
  color: var(--white);
  text-align: center;
  padding: 32px 24px 24px;
  border-top: 6px solid var(--byc-yellow);
  border-radius: 4px 4px 0 0;
}

.header .org-name {
  font-size: 11px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--byc-yellow);
  margin-bottom: 8px;
}

.header h1 {
  font-size: 26px;
  font-weight: 900;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 8px;
}

.header .subtitle {
  font-size: 13px;
  color: #CCCCCC;
  margin-top: 6px;
}

.header .event-badge {
  display: inline-block;
  background: var(--byc-yellow);
  color: var(--byc-black);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 4px 14px;
  border-radius: 100px;
  margin-top: 14px;
  text-transform: uppercase;
}

/* ── Intro banner ──────────────────────────────────────────────────────── */
.intro-banner {
  background: var(--byc-light-yellow);
  border-left: 4px solid var(--byc-yellow);
  padding: 16px 20px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--byc-gray);
}

/* ── Form cards ────────────────────────────────────────────────────────── */
.form-card {
  background: var(--white);
  padding: 28px 32px;
  border-bottom: 1px solid #E8E8E8;
}

.section-title {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--byc-black);
  background: var(--byc-light-yellow);
  border-left: 4px solid var(--byc-yellow);
  padding: 8px 14px;
  margin: 0 -32px 20px;
}

/* ── Fields ────────────────────────────────────────────────────────────── */
.field-group { margin-bottom: 20px; }

.field-group label {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--byc-black);
  margin-bottom: 6px;
}

.field-group label .required {
  color: var(--byc-gold);
  margin-left: 3px;
}

.field-group input[type="text"],
.field-group input[type="email"],
.field-group input[type="tel"],
.field-group select,
.field-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid #DDDDDD;
  border-radius: 4px;
  font-size: 14px;
  font-family: Arial, sans-serif;
  color: var(--byc-gray);
  background: var(--byc-light-gray);
  transition: border-color 0.2s;
  outline: none;
}

.field-group input:focus,
.field-group select:focus,
.field-group textarea:focus {
  border-color: var(--byc-yellow);
  background: #FFFFF8;
}

.field-group textarea {
  resize: vertical;
  min-height: 90px;
  line-height: 1.6;
}

.field-group select { cursor: pointer; }

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* ── Checkboxes ────────────────────────────────────────────────────────── */
.checkbox-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 6px;
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--byc-gray);
  cursor: pointer;
  padding: 8px 12px;
  border: 1.5px solid #DDDDDD;
  border-radius: 4px;
  background: var(--byc-light-gray);
  transition: all 0.15s;
}

.checkbox-item:hover {
  border-color: var(--byc-yellow);
  background: var(--byc-light-yellow);
}

.checkbox-item input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--byc-black);
  flex-shrink: 0;
}

/* ── Workshop selection cards ─────────────────────────────────────────── */
.checkbox-group.workshop-group {
  grid-template-columns: 1fr;
  gap: 12px;
}

.checkbox-item.workshop-option {
  align-items: flex-start;
  padding: 14px 16px;
}

.checkbox-item.workshop-option input[type="checkbox"] {
  margin-top: 3px;
}

.workshop-copy {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.workshop-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--byc-black);
}

.workshop-subtitle {
  font-size: 12.5px;
  font-weight: 600;
  font-style: italic;
  color: var(--byc-gold);
}

.workshop-desc {
  font-size: 12px;
  line-height: 1.5;
  color: #666666;
}

/* ── Meeting slot sub-panels ───────────────────────────────────────────── */
.slot-details {
  margin-top: 10px;
  margin-left: 28px;
  padding: 14px 16px;
  background: #f9f7f2;
  border-left: 3px solid var(--byc-yellow);
  border-radius: 3px;
}

/* ── Misc ──────────────────────────────────────────────────────────────── */
.field-note {
  font-size: 11px;
  color: #888;
  margin-top: 5px;
  font-style: italic;
}

/* ── Submit section ────────────────────────────────────────────────────── */
.submit-section {
  background: var(--byc-black);
  padding: 24px 32px;
  text-align: center;
  border-radius: 0 0 4px 4px;
}

.submit-btn {
  background: var(--byc-yellow);
  color: var(--byc-black);
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border: none;
  padding: 14px 48px;
  border-radius: 4px;
  cursor: pointer;
  transition: opacity 0.2s;
}

.submit-btn:hover { opacity: 0.85; }

.submit-note {
  font-size: 11px;
  color: #888;
  margin-top: 12px;
}

/* ── Contacts bar ──────────────────────────────────────────────────────── */
.contacts-bar {
  background: var(--byc-light-yellow);
  border: 1px solid #E8D88A;
  padding: 14px 32px;
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
  font-size: 13px;
}

.contacts-bar strong { color: var(--byc-black); }

.contacts-bar .label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--byc-gold);
  font-weight: 700;
  margin-right: 8px;
}

/* ── Audio upload zone (speaker.html) ──────────────────────────────────── */
.upload-zone {
  border: 2px dashed var(--byc-yellow);
  background: var(--byc-light-yellow);
  border-radius: 4px;
  padding: 24px;
  text-align: center;
  cursor: pointer;
  font-size: 13px;
  color: #555;
  transition: border-color 0.2s, background 0.2s;
  margin-top: 6px;
}

.upload-zone:hover,
.upload-zone.drag-over {
  border-color: var(--byc-gold);
  background: #FFF3C0;
}

.upload-zone .upload-filename {
  font-weight: 700;
  color: var(--byc-black);
}

/* ── Responsive ────────────────────────────────────────────────────────── */
@media (max-width: 600px) {
  .field-row          { grid-template-columns: 1fr; }
  .checkbox-group     { grid-template-columns: 1fr; }
  .form-card          { padding: 20px 18px; }
  .section-title      { margin: 0 -18px 16px; }

}