/* ==========================================================================
   ZARREL — Contact page
   Glass card form, inline validation, success/error feedback states.
   Consumes design tokens from variables.css.
   ========================================================================== */

/* --- Active nav link ----------------------------------------------------- */
.navbar__link--active {
  color: var(--color-ink-dark);
}

.navbar__link--active::after {
  transform: scaleX(1);
}

/* --- Contact page layout ------------------------------------------------- */
.page--contact {
  gap: clamp(2rem, 4vw, 3.5rem);
  padding-bottom: 0;
}

.contact {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(2rem, 4vw, 3rem);
}

.contact__intro {
  width: 100%;
  max-width: var(--contact-max-width);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

.contact__title {
  font-size: clamp(2.25rem, 5vw, 3.25rem);
  font-weight: var(--fw-extrabold);
  line-height: var(--lh-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--color-ink-dark);
}

.contact__subtitle {
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  line-height: var(--lh-snug);
  color: var(--color-ink-dark-muted);
  max-width: 42ch;
}

/* --- Glass panel (form + feedback share this shell) ---------------------- */
.contact__panel {
  position: relative;
  width: 100%;
  max-width: var(--contact-max-width);
}

.contact-form,
.contact-feedback {
  width: 100%;
  padding: clamp(1.75rem, 4vw, 2.75rem);
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(var(--blur-idle)) saturate(150%);
  backdrop-filter: blur(var(--blur-idle)) saturate(150%);
  box-shadow: var(--shadow-nav);
}

/* Subtle glass reflection (matches navbar) */
.contact-form::before,
.contact-feedback::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.55) 0%,
    rgba(255, 255, 255, 0) 42%
  );
  pointer-events: none;
}

.contact-form {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.contact-form.is-hidden {
  display: none;
}

/* --- Form fields --------------------------------------------------------- */
.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.form-field__label-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-sm);
}

.form-field__label {
  font-size: 0.92rem;
  font-weight: var(--fw-semibold);
  color: var(--color-ink-dark);
  letter-spacing: 0.01em;
}

.form-field__optional {
  font-size: 0.78rem;
  font-weight: var(--fw-medium);
  color: var(--color-ink-dark-faint);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.form-field__control {
  position: relative;
}

.form-field__input {
  width: 100%;
  font-family: inherit;
  font-size: 0.98rem;
  font-weight: var(--fw-regular);
  color: var(--color-ink-dark);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  line-height: var(--lh-snug);
  transition:
    border-color var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out),
    background var(--dur-fast) var(--ease-out);
}

.form-field__input::placeholder {
  color: var(--color-ink-dark-faint);
}

.form-field__input:hover {
  border-color: var(--glass-border-strong);
}

.form-field__input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(10, 132, 255, 0.15);
  background: var(--color-secondary);
}

.form-field__select {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 2.75rem;
  cursor: pointer;
}

.form-field__select:invalid {
  color: var(--color-ink-dark-faint);
}

.form-field__select option {
  color: var(--color-ink-dark);
}

.form-field__chevron {
  position: absolute;
  right: 1rem;
  top: 50%;
  width: 0.55rem;
  height: 0.55rem;
  border-right: 2px solid var(--color-ink-dark-muted);
  border-bottom: 2px solid var(--color-ink-dark-muted);
  transform: translateY(-65%) rotate(45deg);
  pointer-events: none;
}

.form-field__textarea {
  resize: vertical;
  min-height: 8.5rem;
  max-height: 18rem;
}

.form-field__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
}

.form-field__hint {
  font-size: 0.8rem;
  color: var(--color-ink-dark-faint);
}

.form-field__counter {
  font-size: 0.8rem;
  font-weight: var(--fw-medium);
  color: var(--color-ink-dark-faint);
  font-variant-numeric: tabular-nums;
}

.form-field__counter.is-near-limit {
  color: var(--color-primary-strong);
}

/* Inline validation */
.form-field.is-invalid .form-field__input {
  border-color: #e5484d;
  box-shadow: 0 0 0 3px rgba(229, 72, 77, 0.12);
}

.form-field__error {
  font-size: 0.82rem;
  font-weight: var(--fw-medium);
  color: #c92a2f;
  line-height: var(--lh-snug);
  min-height: 0;
}

.form-field__error[hidden] {
  display: none;
}

/* --- Submit button ------------------------------------------------------- */
.contact-form__submit {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  margin-top: var(--space-xs);
  padding: 1rem 1.5rem;
  font-family: inherit;
  font-size: 1rem;
  font-weight: var(--fw-semibold);
  color: var(--color-secondary);
  background: linear-gradient(
    135deg,
    var(--color-primary) 0%,
    var(--color-primary-strong) 100%
  );
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  box-shadow: var(--shadow-btn);
  transition:
    transform var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out),
    opacity var(--dur-fast) var(--ease-out);
}

.contact-form__submit:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-btn-hover);
}

.contact-form__submit:active:not(:disabled) {
  transform: translateY(0);
}

.contact-form__submit:disabled {
  opacity: 0.72;
  cursor: not-allowed;
  transform: none;
}

.contact-form__submit.is-loading .contact-form__submit-text {
  opacity: 0;
}

.contact-form__submit-loader {
  position: absolute;
  width: 1.25rem;
  height: 1.25rem;
  border: 2px solid rgba(255, 255, 255, 0.35);
  border-top-color: #fff;
  border-radius: 50%;
  opacity: 0;
  animation: zr-spin 0.7s linear infinite;
}

.contact-form__submit.is-loading .contact-form__submit-loader {
  opacity: 1;
}

@keyframes zr-spin {
  to { transform: rotate(360deg); }
}

/* --- Feedback cards (success / error) ------------------------------------ */
.contact-feedback {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-md);
  animation: zr-fade-up var(--dur-slow) var(--ease-out) both;
}

.contact-feedback[hidden] {
  display: none;
}

.contact-feedback__icon {
  width: 3.5rem;
  height: 3.5rem;
  color: var(--color-primary);
}

.contact-feedback__icon--error {
  color: #c92a2f;
}

.contact-feedback__title {
  font-size: clamp(1.35rem, 2.5vw, 1.65rem);
  font-weight: var(--fw-bold);
  color: var(--color-ink-dark);
  letter-spacing: var(--tracking-tight);
}

.contact-feedback__text {
  font-size: 0.98rem;
  line-height: var(--lh-relaxed);
  color: var(--color-ink-dark-muted);
  max-width: 36ch;
}

.contact-feedback__btn {
  margin-top: var(--space-sm);
  padding: 0.85rem 1.75rem;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: var(--fw-semibold);
  color: var(--color-secondary);
  background: linear-gradient(
    135deg,
    var(--color-primary) 0%,
    var(--color-primary-strong) 100%
  );
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  box-shadow: var(--shadow-btn);
  transition:
    transform var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out);
}

.contact-feedback__btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-btn-hover);
}

.contact-feedback__btn--secondary {
  color: var(--color-ink-dark);
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid var(--glass-border-strong);
  box-shadow: none;
}

.contact-feedback__btn--secondary:hover {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(10, 132, 255, 0.12);
}