/* ─── Reset & Base ─────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --cream:      #faf7f2;
  --warm-white: #fff9f4;
  --gold:       #c9a96e;
  --gold-light: #e8d5b0;
  --text:       #2c2420;
  --text-muted: #8a7a70;
  --border:     #e8ddd4;
  --radius:     12px;
  --shadow:     0 4px 24px rgba(44, 36, 32, 0.08);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Montserrat', sans-serif;
  background-color: var(--cream);
  color: var(--text);
  font-size: 15px;
  line-height: 1.6;
}

/* ─── Page wrapper ─────────────────────────────────────────────────────────── */
.page-wrapper {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 1.25rem 4rem;
}

/* ─── Hero ─────────────────────────────────────────────────────────────────── */
.hero {
  text-align: center;
  padding: 3.5rem 1rem 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.hero-ornament {
  color: var(--gold);
  font-size: 1.2rem;
  letter-spacing: 0.5em;
}

.hero-pre {
  font-family: 'Montserrat', sans-serif;
  font-weight: 300;
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.hero-title {
  font-family: 'Cormorant Garamond', serif;
  font-weight: 300;
  font-size: clamp(3rem, 10vw, 5rem);
  letter-spacing: 0.04em;
  line-height: 1.1;
  color: var(--text);
}

.hero-title .amp {
  font-style: italic;
  color: var(--gold);
}

.hero-date {
  font-family: 'Montserrat', sans-serif;
  font-weight: 300;
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ─── Divider ornamental ───────────────────────────────────────────────────── */
.intro {
  text-align: center;
  padding: 0.5rem 1.5rem 2rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 300;
  line-height: 1.8;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2.5rem;
}

.intro strong { color: var(--text); font-weight: 500; }

/* ─── Form container ───────────────────────────────────────────────────────── */
.form-container {
  background: var(--warm-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
  box-shadow: var(--shadow);
}

/* ─── Form groups ──────────────────────────────────────────────────────────── */
.form-group {
  margin-bottom: 1.75rem;
}

.form-group label {
  display: block;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
}

.required { color: var(--gold); }

.hint {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
}

/* ─── Inputs ───────────────────────────────────────────────────────────────── */
input[type="text"],
input[type="email"],
select,
textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--cream);
  color: var(--text);
  font-family: 'Montserrat', sans-serif;
  font-size: 0.9rem;
  font-weight: 300;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
}

input[type="text"]:focus,
input[type="email"]:focus,
select:focus,
textarea:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(201, 169, 110, 0.15);
}

select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238a7a70' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

textarea { resize: vertical; min-height: 100px; }

input::placeholder, textarea::placeholder { color: #c0b4ac; }

/* ─── Radio cards ──────────────────────────────────────────────────────────── */
.radio-group {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.radio-group--sm .radio-card { flex: 1; min-width: 120px; }

.radio-card { cursor: pointer; flex: 1; min-width: 160px; }

.radio-card input[type="radio"] { display: none; }

.radio-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--cream);
  font-size: 0.85rem;
  font-weight: 400;
  transition: all 0.2s;
}

.radio-icon { font-size: 1.1rem; }

.radio-card input[type="radio"]:checked + .radio-label {
  border-color: var(--gold);
  background: rgba(201, 169, 110, 0.08);
  color: var(--text);
}

.radio-card:hover .radio-label {
  border-color: var(--gold-light);
}

/* ─── Checkbox grid ────────────────────────────────────────────────────────── */
.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.6rem;
}

.checkbox-card { cursor: pointer; }

.checkbox-card input[type="checkbox"] { display: none; }

.checkbox-card span {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.65rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--cream);
  font-size: 0.82rem;
  font-weight: 400;
  transition: all 0.2s;
}

.checkbox-card input[type="checkbox"]:checked + span {
  border-color: var(--gold);
  background: rgba(201, 169, 110, 0.08);
}

.checkbox-card:hover span { border-color: var(--gold-light); }

/* ─── Sección animada ──────────────────────────────────────────────────────── */
.hidden { display: none !important; }

#seccion-asistentes {
  overflow: hidden;
  border-top: 1px solid var(--border);
  padding-top: 1.75rem;
  margin-top: 0.25rem;
  margin-bottom: 1.75rem;
  animation: fadeDown 0.35s ease;
}

@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── Submit button ────────────────────────────────────────────────────────── */
.form-submit { text-align: center; margin-top: 0.5rem; }

button[type="submit"] {
  background: var(--gold);
  color: #fff;
  border: none;
  border-radius: 50px;
  padding: 0.9rem 3rem;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  box-shadow: 0 4px 16px rgba(201, 169, 110, 0.35);
}

button[type="submit"]:hover {
  background: #b8935a;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(201, 169, 110, 0.45);
}

button[type="submit"]:active { transform: translateY(0); }
button[type="submit"]:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

/* ─── Mensajes resultado ───────────────────────────────────────────────────── */
.success-msg {
  text-align: center;
  padding: 2.5rem 1rem;
  animation: fadeIn 0.5s ease;
}

.success-icon { font-size: 3rem; margin-bottom: 1rem; }

.success-msg h2 {
  font-family: 'Cormorant Garamond', serif;
  font-weight: 400;
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.success-msg p { color: var(--text-muted); font-size: 0.9rem; }

.error-msg {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  background: #fdf0f0;
  border: 1px solid #f5c6c6;
  border-radius: 8px;
  color: #c0392b;
  font-size: 0.85rem;
  text-align: center;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ─── Validación ───────────────────────────────────────────────────────────── */
input.error, select.error, textarea.error {
  border-color: #e74c3c;
}

/* ─── Footer ───────────────────────────────────────────────────────────────── */
.site-footer {
  text-align: center;
  padding: 2.5rem 0 1rem;
  color: var(--text-muted);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
}

/* ─── Responsive ───────────────────────────────────────────────────────────── */
@media (max-width: 480px) {
  .form-container { padding: 1.75rem 1.25rem; }
  .radio-group { flex-direction: column; }
  .radio-card { min-width: unset; }
  .checkbox-grid { grid-template-columns: 1fr 1fr; }
}