/* ==========================================================================
   JapanStockPulse — Contact form
   --------------------------------------------------------------------------
   Loaded ONLY by <lang>/contact/contact.html, after common/css/style.css.
   Everything here reuses the site's existing design tokens (--color-*,
   --font-*, --transition) so the form matches the editorial look without
   duplicating any of the base stylesheet.
   ========================================================================== */

/* ---------- Layout ---------- */

/* Short intro paragraph above the form. */
.contact-intro {
  font-family: var(--font-body);
  font-size: 1.02rem;
  line-height: 1.65;
  color: var(--color-text);
  margin-bottom: 1.75rem;
}

.contact-form {
  font-family: var(--font-ui);
  max-width: 640px;
}

/* One label + control + error message. */
.form-field {
  margin-bottom: 1.4rem;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-primary);
  margin-bottom: 0.4rem;
}

/* Red asterisk marking a required field. */
.form-required {
  color: var(--color-accent);
  margin-left: 0.15rem;
}

/* ---------- Controls ---------- */

.form-input,
.form-textarea {
  display: block;
  width: 100%;
  font-family: var(--font-ui);
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border-strong);
  border-radius: 2px;
  padding: 0.65rem 0.8rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-textarea {
  min-height: 11rem;
  resize: vertical;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-light);
}

.form-input:hover,
.form-textarea:hover {
  border-color: var(--color-text-muted);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(10, 22, 40, 0.10);
}

/* Invalid state — set by contact.js via aria-invalid, so the styling and the
   accessibility signal can never drift apart. */
.form-input[aria-invalid="true"],
.form-textarea[aria-invalid="true"] {
  border-color: var(--color-accent);
}

.form-input[aria-invalid="true"]:focus,
.form-textarea[aria-invalid="true"]:focus {
  box-shadow: 0 0 0 3px rgba(204, 0, 0, 0.12);
}

/* ---------- Per-field error message ---------- */

/* Hidden until contact.js fills it in (empty :empty stays collapsed). */
.form-error {
  font-size: 0.82rem;
  line-height: 1.45;
  color: var(--color-accent);
  margin-top: 0.35rem;
  min-height: 0;
}

.form-error:empty {
  display: none;
}

/* ---------- Consent checkbox ---------- */

.form-consent {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  padding: 0.9rem 1rem;
  background: #fafaf6;
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-border-strong);
  border-radius: 2px;
  transition: border-color var(--transition);
}

.form-consent--invalid {
  border-left-color: var(--color-accent);
}

.form-consent__box {
  flex: 0 0 auto;
  width: 1.05rem;
  height: 1.05rem;
  margin-top: 0.15rem;
  accent-color: var(--color-accent);
  cursor: pointer;
}

.form-consent__text {
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--color-text);
  cursor: pointer;
}

/* ---------- Honeypot ----------
   A real-looking field that humans never see and bots tend to fill in.
   Moved off-screen rather than display:none — some bots skip hidden inputs. */
.form-hp {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* ---------- Submit ---------- */

.form-actions {
  margin-top: 1.6rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-submit {
  font-family: var(--font-ui);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: #fff;
  background: var(--color-primary);
  border: 1px solid var(--color-primary);
  border-radius: 2px;
  padding: 0.75rem 2rem;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), opacity var(--transition);
}

.btn-submit:hover:not(:disabled),
.btn-submit:focus-visible:not(:disabled) {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.btn-submit:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Disabled until the confirmation checkbox is ticked, and again while the
   request is in flight. */
.btn-submit:disabled {
  background: var(--color-border-strong);
  border-color: var(--color-border-strong);
  color: #fff;
  cursor: not-allowed;
  opacity: 0.85;
}

/* Hint shown next to the disabled button explaining why it is disabled. */
.form-hint {
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

/* ---------- Form-level status banner ---------- */

.form-status {
  margin-bottom: 1.5rem;
  padding: 0.9rem 1.1rem;
  font-size: 0.88rem;
  line-height: 1.55;
  border-radius: 2px;
}

.form-status:empty {
  display: none;
}

.form-status--error {
  color: #7a0000;
  background: #fdf2f2;
  border: 1px solid #f0c9c9;
  border-left: 3px solid var(--color-accent);
}

.form-status--info {
  color: var(--color-text);
  background: #f3f6fa;
  border: 1px solid #d5e0ec;
  border-left: 3px solid var(--color-primary);
}

/* ---------- Thank-you page ---------- */

.contact-thanks__message {
  font-family: var(--font-body);
  font-size: 1.12rem;
  line-height: 1.7;
  color: var(--color-text);
}

.contact-thanks__actions {
  margin-top: 2rem;
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  font-family: var(--font-ui);
}

.contact-thanks__actions a {
  display: inline-block;
  padding: 0.7rem 1.4rem;
  border: 1px solid var(--color-border-strong);
  background: var(--color-surface);
  color: var(--color-primary);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.contact-thanks__actions a:hover,
.contact-thanks__actions a:focus {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* ---------- Responsive ---------- */

@media (max-width: 600px) {
  .form-textarea { min-height: 9rem; }

  /* Full-width tap target on phones. */
  .form-actions { flex-direction: column; align-items: stretch; }
  .btn-submit { width: 100%; }
  .form-hint { text-align: center; }
}