/* ── Reset & base ─────────────────────────────────────────────────────────── */

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

:root {
  --navy:       #1a1f3c;
  --navy-light: #252c54;
  --gold:       #8B7320;
  --gold-light: #a8892a;
  --white:      #ffffff;
  --gray-50:    #f9fafb;
  --gray-100:   #f3f4f6;
  --gray-200:   #e5e7eb;
  --gray-400:   #9ca3af;
  --gray-600:   #4b5563;
  --gray-700:   #374151;
  --green:      #166534;
  --green-bg:   #dcfce7;
  --red:        #991b1b;
  --red-bg:     #fee2e2;
}

html, body {
  height: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: var(--gray-700);
  background: var(--gray-50);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Header ───────────────────────────────────────────────────────────────── */

.site-header {
  background: var(--navy);
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.site-header__logo {
  height: 40px;
  width: auto;
}

.site-header__wordmark {
  display: flex;
  flex-direction: column;
}

.site-header__name {
  color: var(--white);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1.2;
}

.site-header__tagline {
  color: var(--gold);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ── Main content ─────────────────────────────────────────────────────────── */

.page-body {
  flex: 1;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 2.5rem 1rem 3rem;
}

.card {
  background: var(--white);
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  width: 100%;
  max-width: 520px;
  padding: 2rem;
}

/* ── Page states ──────────────────────────────────────────────────────────── */

.state {
  display: none;
}

.state.visible {
  display: block;
}

/* ── Error / invalid link state ───────────────────────────────────────────── */

.state-error .error-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
}

.state-error h1 {
  font-size: 1.15rem;
  color: var(--navy);
  margin-bottom: 0.5rem;
}

.state-error p {
  font-size: 0.9rem;
  color: var(--gray-600);
}

/* ── Form state ───────────────────────────────────────────────────────────── */

.form-heading {
  margin-bottom: 1.5rem;
}

.form-heading h1 {
  font-size: 1.2rem;
  color: var(--navy);
  margin-bottom: 0.25rem;
}

.form-heading p {
  font-size: 0.875rem;
  color: var(--gray-600);
}

.context-block {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-left: 3px solid var(--gold);
  border-radius: 4px;
  padding: 0.75rem 1rem;
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.context-block__row {
  display: flex;
  gap: 0.5rem;
}

.context-block__label {
  color: var(--gray-400);
  min-width: 5rem;
  flex-shrink: 0;
}

.context-block__value {
  color: var(--gray-700);
  font-weight: 500;
}

.divider {
  border: none;
  border-top: 1px solid var(--gray-200);
  margin: 1.25rem 0;
}

/* ── Form fields ──────────────────────────────────────────────────────────── */

.field-group {
  margin-bottom: 1.1rem;
}

.field-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 0.35rem;
}

.field-group input {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--gray-200);
  border-radius: 5px;
  font-size: 0.925rem;
  color: var(--gray-700);
  background: var(--white);
  transition: border-color 0.15s, box-shadow 0.15s;
  -webkit-appearance: none;
}

.field-group input:focus {
  outline: none;
  border-color: var(--navy);
  box-shadow: 0 0 0 3px rgba(26, 31, 60, 0.1);
}

.field-group input::placeholder {
  color: var(--gray-400);
}

.field-hint {
  display: block;
  font-size: 0.78rem;
  color: var(--gray-400);
  margin-top: 0.3rem;
}

/* ── Submit button ────────────────────────────────────────────────────────── */

.btn-submit {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--gold);
  color: var(--white);
  border: none;
  border-radius: 5px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 0.5rem;
  transition: background 0.15s;
  letter-spacing: 0.02em;
}

.btn-submit:hover:not(:disabled) {
  background: var(--gold-light);
}

.btn-submit:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

/* ── Inline messages ──────────────────────────────────────────────────────── */

.message {
  border-radius: 5px;
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  margin-top: 1rem;
  display: none;
}

.message.visible {
  display: block;
}

.message--error {
  background: var(--red-bg);
  color: var(--red);
  border: 1px solid #fca5a5;
}

/* ── Success state ────────────────────────────────────────────────────────── */

.state-success .success-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
}

.state-success h2 {
  font-size: 1.15rem;
  color: var(--navy);
  margin-bottom: 0.5rem;
}

.state-success p {
  font-size: 0.9rem;
  color: var(--gray-600);
}

/* ── Footer ───────────────────────────────────────────────────────────────── */

.site-footer {
  background: var(--navy);
  color: rgba(255,255,255,0.4);
  text-align: center;
  font-size: 0.75rem;
  padding: 0.9rem 1rem;
}

/* ── Responsive ───────────────────────────────────────────────────────────── */

@media (max-width: 560px) {
  .card {
    padding: 1.5rem;
  }

  .page-body {
    padding: 1.5rem 0.75rem 2rem;
  }
}