/* The Corridor — join lander
   Matches Issue 0 email: navy / cream / muted gold. No gradients. */

:root {
  --navy: #0B1F33;
  --navy-line: #1E3A52;
  --cream: #F7F4EF;
  --gold: #C4A574;
  --text: #1A1A1A;
  --muted: #5C6B7A;
  --line: #E8E2D9;
  --white: #FFFFFF;
  --focus: #C4A574;
  --error: #8B3A3A;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --serif: Georgia, "Iowan Old Style", "Palatino Linotype", Palatino, "Times New Roman", serif;
  --measure: 40rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  color-scheme: light;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--cream);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
}

a {
  color: var(--navy);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

a:hover {
  color: var(--gold);
}

.wrap {
  width: 100%;
  max-width: var(--measure);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* —— Header —— */

.site-header {
  background: var(--navy);
  color: var(--cream);
  padding: 1.75rem 0 1.5rem;
}

.header-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

.wordmark {
  margin: 0;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
}

.header-meta {
  margin: 0;
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--cream);
  font-weight: 400;
}

.gold-rule {
  height: 1px;
  background: var(--gold);
  border: 0;
  margin: 1rem 0 0;
}

/* —— Main panel (letter object) —— */

.main {
  flex: 1;
  padding: 2rem 1rem 3rem;
}

.letter {
  max-width: var(--measure);
  margin: 0 auto;
  background: var(--white);
  border: 1px solid var(--line);
  padding: 2.25rem 2rem 2.5rem;
}

@media (min-width: 640px) {
  .letter {
    padding: 2.75rem 2.5rem 3rem;
  }
}

.kicker {
  margin: 0 0 0.75rem;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
}

.headline {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(1.5rem, 3.6vw, 1.85rem);
  font-weight: 400;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--navy);
}

.subhead {
  margin: 0.85rem 0 0;
  font-size: 1.05rem;
  line-height: 1.5;
  color: var(--muted);
}

.section-rule {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 2rem 0;
}

.section-label {
  margin: 0 0 1rem;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.proof {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.1rem;
}

.proof li {
  display: grid;
  grid-template-columns: 1.75rem 1fr;
  gap: 0.65rem;
  align-items: start;
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--text);
}

.proof-num {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--gold);
  padding-top: 0.2rem;
}

/* —— Form —— */

.form {
  display: grid;
  gap: 1.35rem;
}

.join-fields {
  margin: 0;
  padding: 0;
  border: 0;
  min-inline-size: 0;
}

.join-fields legend.section-label {
  padding: 0;
  margin: 0 0 0.85rem;
}

.form-grid {
  display: grid;
  gap: 1.35rem;
}


.field {
  display: grid;
  gap: 0.4rem;
}

.label {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold);
}

.label .opt {
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: none;
  color: var(--muted);
}

input[type="email"],
input[type="text"] {
  width: 100%;
  appearance: none;
  background: var(--cream);
  border: 1px solid #C9BBA3;
  border-radius: 2px;
  padding: 0.75rem 0.85rem;
  font-family: inherit;
  font-size: 1rem;
  color: var(--text);
  line-height: 1.4;
}

input[type="email"]:hover,
input[type="text"]:hover {
  border-color: var(--gold);
}

input[type="email"]:focus,
input[type="text"]:focus,
.desk:focus-within,
.consent:focus-within {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

input[aria-invalid="true"],
.desks[aria-invalid="true"] {
  border-color: var(--error);
}

.error {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--error);
  min-height: 0;
}

.error:empty {
  display: none;
}

.desks {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
  margin: 0;
  padding: 0;
  border: 0;
  min-inline-size: 0;
}

.desks-legend {
  padding: 0;
}

.desk {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  margin: 0;
  padding: 0.85rem 0.9rem 0.8rem;
  background: var(--cream);
  border: 1px solid var(--gold);
  border-radius: 2px;
  cursor: pointer;
  user-select: none;
}

.desk input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  opacity: 0;
  cursor: pointer;
  z-index: 1;
}

.desk-code {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--navy);
}

.desk-name {
  font-size: 0.875rem;
  color: var(--text);
}

.desk:hover {
  border-color: var(--navy);
}

.desk:has(input:checked) {
  background: var(--navy);
  border-color: var(--gold);
}

.desk:has(input:checked) .desk-code {
  color: var(--gold);
}

.desk:has(input:checked) .desk-name {
  color: var(--cream);
}

.consent-row {
  display: grid;
  grid-template-columns: 1.15rem 1fr;
  gap: 0.7rem;
  align-items: start;
}

.consent-row input[type="checkbox"] {
  margin: 0.2rem 0 0;
  width: 1.05rem;
  height: 1.05rem;
  accent-color: var(--navy);
  cursor: pointer;
}

.consent-copy {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--text);
  cursor: pointer;
}

.actions {
  display: grid;
  gap: 0.5rem;
  margin-top: 0.25rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 0.9rem 1.25rem;
  background: var(--navy);
  color: var(--cream);
  border: 1px solid var(--navy);
  border-radius: 2px;
  font-family: inherit;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
}

.btn:hover:not(:disabled) {
  background: #102a44;
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.form-note {
  margin: 0;
  font-size: 0.75rem;
  color: var(--muted);
}

/* —— Success —— */

.success {
  padding: 0.25rem 0 0.5rem;
}

.success[hidden],
.form[hidden] {
  display: none !important;
}

.success-mark {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--navy);
  background: var(--cream);
  border: 1px solid var(--gold);
  padding: 0.35rem 0.7rem;
  border-radius: 2px;
  margin-bottom: 1.1rem;
}

.success h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.65rem;
  font-weight: 400;
  color: var(--navy);
  line-height: 1.3;
}

.success-desks {
  margin: 0.85rem 0 0;
  font-size: 1.05rem;
  color: var(--text);
}

.success-desks span {
  color: var(--navy);
  font-weight: 600;
}

.success p.body {
  margin: 1.1rem 0 0;
  color: var(--muted);
  font-size: 0.9375rem;
}

/* —— Footer —— */

.site-footer {
  background: var(--navy);
  color: var(--cream);
  padding: 1.5rem 0 1.75rem;
  margin-top: auto;
}

.footer-brand {
  margin: 0 0 0.65rem;
  font-size: 0.8125rem;
  letter-spacing: 0.02em;
  color: var(--cream);
}

.footer-brand strong {
  color: var(--gold);
  font-weight: 600;
}

.footer-silence {
  margin: 0;
  font-size: 0.75rem;
  line-height: 1.55;
  color: #8A97A3;
}

@media (max-width: 360px) {
  .desks {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 420px) {
  .header-meta {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
  }
}