/*
 * EPOH Forms — form.css
 * Intake form, contact form — dark (default) and light variants.
 * Validation states, custom select, textarea, submit button.
 * Evolved from reference site's form.css — EPOH palette and tokens.
 *
 * Load order: 7th (after animations.css)
 * JS partner: form.js (S3)
 */


/* ============================================================
   FORM WRAPPER
   ============================================================ */

.form-wrapper {
  background: var(--color-midnight);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-small);
  padding: var(--space-10);
}

.form-wrapper--light {
  background: #fff;
  border-color: var(--color-border-light);
}

.form-header {
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--color-border-dark);
}

.form-wrapper--light .form-header {
  border-bottom-color: var(--color-border-light);
}

.form-header__eyebrow {
  font-family: var(--font-mono);
  font-size: var(--font-size-phase);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-ember);
  display: block;
  margin-bottom: var(--space-4);
}

.form-header__title {
  font-family: var(--font-display);
  font-size: var(--font-size-h3);
  font-weight: var(--weight-semibold);
  color: var(--color-parchment);
  line-height: var(--line-height-heading);
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-3);
}

.form-wrapper--light .form-header__title {
  color: var(--color-text-on-light);
}

.form-header__subtitle {
  font-size: var(--font-size-small);
  line-height: var(--line-height-body);
  color: var(--color-text-secondary);
  max-width: none;
  margin-bottom: 0;
}

.form-wrapper--light .form-header__subtitle {
  color: var(--color-text-muted-light);
}


/* ============================================================
   FORM LAYOUT
   ============================================================ */

.contact-form,
.intake-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

/* Two-column row */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}


/* ============================================================
   FORM GROUP
   ============================================================ */

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

/* Label */
.form-label {
  font-family: var(--font-body);
  font-size: var(--font-size-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-parchment);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.form-wrapper--light .form-label {
  color: var(--color-text-on-light);
}

/* Required star */
.form-label__required {
  color: var(--color-ember);
  font-size: 0.7rem;
  line-height: 1;
}


/* ============================================================
   INPUTS, SELECTS, TEXTAREAS
   ============================================================ */

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-4) var(--space-5);
  font-family: var(--font-body);
  font-size: var(--font-size-body);
  font-weight: var(--weight-regular);
  color: var(--color-parchment);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-subtle);
  transition:
    border-color var(--transition-fast),
    background var(--transition-fast),
    box-shadow var(--transition-fast);
  appearance: none;
  -webkit-appearance: none;
  line-height: var(--line-height-body);
}

/* Light variant */
.form-wrapper--light .form-input,
.form-wrapper--light .form-select,
.form-wrapper--light .form-textarea {
  color: var(--color-text-on-light);
  background: #fff;
  border-color: var(--color-border-light);
}

/* Placeholder */
.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-ash);
  font-weight: var(--weight-regular);
}

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

/* Focus state */
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-ember);
  background: rgba(196, 98, 45, 0.04);
  box-shadow: 0 0 0 3px rgba(196, 98, 45, 0.12);
}

.form-wrapper--light .form-input:focus,
.form-wrapper--light .form-select:focus,
.form-wrapper--light .form-textarea:focus {
  background: rgba(196, 98, 45, 0.03);
  box-shadow: 0 0 0 3px rgba(196, 98, 45, 0.10);
}

/* Hover state (not focused) */
.form-input:not(:focus):hover,
.form-select:not(:focus):hover,
.form-textarea:not(:focus):hover {
  border-color: rgba(255, 255, 255, 0.15);
}

.form-wrapper--light .form-input:not(:focus):hover,
.form-wrapper--light .form-select:not(:focus):hover,
.form-wrapper--light .form-textarea:not(:focus):hover {
  border-color: var(--color-stone);
}


/* ============================================================
   SELECT — Custom arrow
   ============================================================ */

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236B6560' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-5) center;
  padding-right: var(--space-10);
  cursor: pointer;
}

.form-select:focus {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23C4622D' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}

/* Select options styling (limited browser support) */
.form-select option {
  background: var(--color-midnight);
  color: var(--color-parchment);
}

.form-wrapper--light .form-select option {
  background: #fff;
  color: var(--color-text-on-light);
}


/* ============================================================
   TEXTAREA
   ============================================================ */

.form-textarea {
  resize: vertical;
  min-height: 140px;
  line-height: var(--line-height-body);
}


/* ============================================================
   VALIDATION STATES
   JS adds .is-valid / .is-invalid to .form-group
   ============================================================ */

/* Invalid */
.form-group.is-invalid .form-input,
.form-group.is-invalid .form-select,
.form-group.is-invalid .form-textarea {
  border-color: rgba(196, 98, 45, 0.70);
  background: rgba(196, 98, 45, 0.05);
}

.form-group.is-invalid .form-input:focus,
.form-group.is-invalid .form-select:focus,
.form-group.is-invalid .form-textarea:focus {
  box-shadow: 0 0 0 3px rgba(196, 98, 45, 0.15);
}

/* Valid */
.form-group.is-valid .form-input,
.form-group.is-valid .form-select,
.form-group.is-valid .form-textarea {
  border-color: rgba(74, 103, 65, 0.60);
  background: rgba(74, 103, 65, 0.04);
}

.form-group.is-valid .form-input:focus,
.form-group.is-valid .form-select:focus,
.form-group.is-valid .form-textarea:focus {
  box-shadow: 0 0 0 3px rgba(74, 103, 65, 0.12);
}

/* Error message */
.form-error {
  display: none;
  font-size: var(--font-size-xs);
  color: var(--color-ember-light);
  font-family: var(--font-mono);
  letter-spacing: var(--tracking-normal);
  padding-top: var(--space-1);
}

.form-group.is-invalid .form-error {
  display: block;
}

/* Hint text */
.form-hint {
  font-size: var(--font-size-xs);
  color: var(--color-ash);
  line-height: var(--line-height-body);
  max-width: none;
  margin-bottom: 0;
}

.form-wrapper--light .form-hint {
  color: var(--color-stone);
}


/* ============================================================
   CHECKBOX & RADIO (custom)
   ============================================================ */

.form-check {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  cursor: pointer;
}

.form-check__input {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  min-width: 18px;
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-subtle);
  background: transparent;
  margin-top: 2px;
  cursor: pointer;
  transition:
    border-color var(--transition-fast),
    background var(--transition-fast);
  position: relative;
  flex-shrink: 0;
}

.form-check__input:checked {
  background: var(--color-ember);
  border-color: var(--color-ember);
}

.form-check__input:checked::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 5px;
  width: 5px;
  height: 9px;
  border: 2px solid #fff;
  border-top: none;
  border-left: none;
  transform: rotate(45deg);
}

.form-check__input:focus-visible {
  outline: var(--focus-ring-width) solid var(--color-ember);
  outline-offset: var(--focus-ring-offset);
}

.form-check__label {
  font-size: var(--font-size-small);
  line-height: var(--line-height-body);
  color: var(--color-text-secondary);
  cursor: pointer;
  max-width: none;
  margin-bottom: 0;
}

.form-wrapper--light .form-check__input {
  border-color: var(--color-border-light);
}

.form-wrapper--light .form-check__label {
  color: var(--color-text-muted-light);
}

/* Radio variant */
.form-check__input[type="radio"] {
  border-radius: 50%;
}

.form-check__input[type="radio"]:checked::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #fff;
  border: none;
}


/* ============================================================
   FORM DISCLAIMER
   ============================================================ */

.form-disclaimer {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-border-dark);
  border-radius: var(--radius-subtle);
  padding: var(--space-4) var(--space-5);
}

.form-wrapper--light .form-disclaimer {
  background: var(--color-parchment);
  border-color: var(--color-border-light);
}

.form-disclaimer p {
  font-size: var(--font-size-xs);
  line-height: var(--line-height-body);
  color: var(--color-ash);
  max-width: none;
  margin-bottom: 0;
}

.form-wrapper--light .form-disclaimer p {
  color: var(--color-stone);
}

.form-disclaimer strong {
  color: var(--color-parchment);
  font-weight: var(--weight-semibold);
}

.form-wrapper--light .form-disclaimer strong {
  color: var(--color-text-on-light);
}


/* ============================================================
   SUBMIT BUTTON
   Full-width in form context
   ============================================================ */

.form-submit {
  width: 100%;
  padding: var(--space-5) var(--space-8);
  background: var(--color-ember);
  color: var(--color-parchment);
  border: 1px solid var(--color-ember);
  border-radius: var(--radius-subtle);
  font-family: var(--font-body);
  font-size: var(--font-size-small);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  cursor: pointer;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
}

.form-submit:hover {
  background: var(--color-ember-light);
  border-color: var(--color-ember-light);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(196, 98, 45, 0.30);
}

.form-submit:active {
  transform: translateY(0);
  box-shadow: none;
}

.form-submit:focus-visible {
  outline: var(--focus-ring-width) solid var(--focus-ring-color);
  outline-offset: var(--focus-ring-offset);
}

/* Loading state */
.form-submit.is-loading {
  pointer-events: none;
  opacity: 0.7;
  cursor: not-allowed;
}

.form-submit.is-loading::after {
  content: '';
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

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

/* Success state */
.form-submit.is-success {
  background: var(--color-sage);
  border-color: var(--color-sage);
  pointer-events: none;
}


/* ============================================================
   FORM SUCCESS MESSAGE
   Shown after successful submission (JS toggles visibility)
   ============================================================ */

.form-success {
  display: none;
  text-align: center;
  padding: var(--space-12) var(--space-8);
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}

.form-success.is-visible {
  display: flex;
}

.form-success__icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(74, 103, 65, 0.15);
  border: 1px solid rgba(74, 103, 65, 0.40);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--color-sage-light);
}

.form-success__title {
  font-family: var(--font-display);
  font-size: var(--font-size-h3);
  color: var(--color-parchment);
  letter-spacing: var(--tracking-tight);
  font-weight: var(--weight-semibold);
  margin-bottom: 0;
}

.form-wrapper--light .form-success__title {
  color: var(--color-text-on-light);
}

.form-success__message {
  font-size: var(--font-size-body);
  line-height: var(--line-height-body);
  color: var(--color-text-secondary);
  max-width: 40ch;
  text-align: center;
  margin-bottom: 0;
}


/* ============================================================
   INTAKE FORM — Specific fields
   Multi-step intake for condition assessment
   ============================================================ */

.intake-form__section-title {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-gold);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border-dark);
  margin-bottom: var(--space-2);
}

/* HS-specific condition select options */
.form-select optgroup {
  font-family: var(--font-body);
  font-weight: var(--weight-semibold);
  color: var(--color-ash);
  font-size: var(--font-size-xs);
}


/* ============================================================
   RESPONSIVE — FORMS
   ============================================================ */

@media (max-width: 767px) {
  .form-wrapper {
    padding: var(--space-8) var(--space-6);
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
}

@media (max-width: 479px) {
  .form-wrapper {
    padding: var(--space-6) var(--space-5);
  }

  .form-header {
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-6);
  }

  .form-input,
  .form-select,
  .form-textarea {
    font-size: var(--font-size-small);
    padding: var(--space-3) var(--space-4);
  }

  .form-submit {
    padding: var(--space-4) var(--space-6);
  }
}


/* ============================================================
   REDUCED MOTION — FORMS
   ============================================================ */

@media (prefers-reduced-motion: reduce) {
  .form-input,
  .form-select,
  .form-textarea,
  .form-submit,
  .form-check__input {
    transition: none;
  }

  .form-submit.is-loading::after {
    animation: none;
    border-top-color: rgba(255, 255, 255, 0.4);
  }
}