/* ── VARIÁVEIS (mesmo tema do site principal) ──────────────────────────────── */
:root {
  --navy:       #31479d;
  --red:        #cc0c00;
  --cream:      #faf8f3;
  --light-blue: #e8edf7;
  --gold:       #c9a84c;
  --text:       #2d2d2d;
  --stripe: repeating-linear-gradient(
    -45deg,
    var(--red)   0px,  var(--red)   10px,
    white        10px, white        14px,
    var(--navy)  14px, var(--navy)  24px,
    white        24px, white        28px
  );
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Montserrat', sans-serif;
  background: var(--cream);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── STRIPES ─────────────────────────────────────────────────────────────────── */
.airmail-stripe {
  height: 18px;
  background: var(--stripe);
  flex-shrink: 0;
}

/* ── HEADER ──────────────────────────────────────────────────────────────────── */
header {
  background: white;
  border-bottom: 1px solid rgba(26,42,94,0.1);
  padding: 1.5rem 2rem;
  text-align: center;
  position: relative;
}

.back-link {
  position: absolute;
  left: 2rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--navy);
  text-decoration: none;
  transition: color 0.2s;
}
.back-link:hover { color: var(--red); }

.lang-switcher {
  position: absolute;
  right: 2rem;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.lang-btn {
  background: none;
  border: 1px solid transparent;
  cursor: pointer;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--navy);
  padding: 0.25rem 0.4rem;
  line-height: 1;
  transition: color 0.2s, border-color 0.2s;
  opacity: 0.5;
}
.lang-btn:hover { opacity: 0.85; }
.lang-btn.active {
  border-color: var(--red);
  color: var(--red);
  opacity: 1;
}

.header-mono {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.8rem;
  font-weight: 300;
  color: var(--navy);
  line-height: 1;
}

.header-date {
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--red);
  margin-top: 0.3rem;
}

/* ── MAIN ────────────────────────────────────────────────────────────────────── */
main {
  flex: 1;
  max-width: 640px;
  width: 100%;
  margin: 0 auto;
  padding: 4rem clamp(1.5rem, 5vw, 3rem) 5rem;
}

.page-label {
  font-size: 0.65rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--red);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}
.page-label::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 1.5px;
  background: var(--red);
}

.page-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(2rem, 6vw, 3rem);
  font-weight: 300;
  color: var(--navy);
  margin-bottom: 1rem;
  line-height: 1.2;
}

.page-intro {
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-size: 1.15rem;
  color: var(--navy);
  line-height: 1.7;
  opacity: 0.8;
  margin-bottom: 2.5rem;
}

/* ── FORM CARD ───────────────────────────────────────────────────────────────── */
.form-card {
  background: var(--navy);
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
}
.form-card::before {
  content: '';
  position: absolute;
  top: -60px; right: -60px;
  width: 200px; height: 200px;
  border-radius: 50%;
  border: 40px solid rgba(255,255,255,0.04);
  pointer-events: none;
}

/* ── FIELDS ──────────────────────────────────────────────────────────────────── */
.field {
  margin-bottom: 1.3rem;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.3rem;
}

.field-label {
  display: block;
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
  margin-bottom: 0.4rem;
}

.field-input {
  width: 100%;
  padding: 0.65rem 0.9rem;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.18);
  color: white;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.85rem;
  outline: none;
  transition: border-color 0.2s, background 0.2s;
  resize: vertical;
}
.field-input::placeholder { color: rgba(255,255,255,0.25); }
.field-input:focus {
  border-color: var(--gold);
  background: rgba(255,255,255,0.1);
}

/* ── RADIO ───────────────────────────────────────────────────────────────────── */
.radio-group {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-top: 0.4rem;
}
.radio-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.85);
  cursor: pointer;
}
.radio-label input[type="radio"] {
  accent-color: var(--gold);
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* ── FEEDBACK ────────────────────────────────────────────────────────────────── */
#feedback {
  margin-bottom: 1rem;
  padding: 0.75rem 1rem;
  font-size: 0.8rem;
  line-height: 1.5;
}
#feedback.success {
  background: rgba(198,239,206,0.12);
  border: 1px solid rgba(198,239,206,0.35);
  color: #c6efce;
}
#feedback.error {
  background: rgba(255,199,206,0.12);
  border: 1px solid rgba(255,199,206,0.35);
  color: #ffc7ce;
}

/* ── SUBMIT BUTTON ───────────────────────────────────────────────────────────── */
.btn-submit {
  width: 100%;
  padding: 0.8rem 1.5rem;
  background: white;
  color: var(--navy);
  border: none;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}
.btn-submit:hover:not(:disabled) { background: var(--gold); }
.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ── CONTACTS ────────────────────────────────────────────────────────────────── */
.contacts {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  margin-top: 3rem;
  flex-wrap: wrap;
}
.contact { text-align: center; }
.contact-name {
  display: block;
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--red);
  font-weight: 600;
  margin-bottom: 0.3rem;
}
.contact-number {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.3rem;
  color: var(--navy);
  text-decoration: none;
}
.contact-number:hover { color: var(--red); }
.contact-divider {
  width: 1px;
  height: 40px;
  background: rgba(26,42,94,0.2);
}

/* ── RESPONSIVE ──────────────────────────────────────────────────────────────── */
@media (max-width: 500px) {
  .back-link { position: static; transform: none; display: block; margin-bottom: 0.5rem; }
  .field-row { grid-template-columns: 1fr; }
  .form-card { padding: 1.75rem 1.25rem; }
}