/**
 * Partner With Us — multi-step application. PDF p.23 +
 * 03-Forms/Partner-With-Us/Partner 1-4.jpg (exact field map).
 *
 * Frontend-only this phase: real step navigation, conditional fields, a
 * generated review summary, and a signature pad — no submission/email yet
 * (see PROJECT-SCOPE.md, PROJECT-GUIDE.md "Forms").
 *
 * RTL: logical properties + DOM-order layout throughout.
 */

.partner-page {
  background: var(--color-noir-temp);
  padding-block: var(--section-pad-y-lg) var(--space-9);
}

.partner-page__header {
  text-align: center;
  max-width: 46rem;
  margin-inline: auto;
  margin-bottom: var(--space-8);
}
.partner-page__eyebrow {
  font-family: var(--font-ui);
  font-size: var(--fs-00);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-paper-on-dark-soft);
  margin: 0 0 var(--space-4);
}
.partner-page__heading {
  font-size: clamp(2.5rem, 5vw, var(--fs-6));
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--color-paper-on-dark);
  margin: 0 0 var(--space-6);
}
.partner-page__intro {
  color: var(--color-paper-on-dark-soft);
  font-size: var(--fs-1);
  line-height: 1.75;
  margin: 0;
}

/* ---- Progress indicator ---- */
.partner-progress {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  max-width: 1200px;
  margin: 0 auto var(--space-8);
}
.partner-progress__step {
  border-block-start: 1px solid var(--color-copper-temp);
  padding-block-start: var(--space-4);
  text-align: start;
  background: none;
  cursor: default;
}
.partner-progress__step.is-active {
  border-block-start-color: var(--color-cherry-temp);
}
.partner-progress__step.is-complete {
  cursor: pointer;
}
.partner-progress__number {
  display: block;
  font-family: var(--font-display);
  font-size: var(--fs-2);
  color: var(--color-paper-on-dark-soft);
  margin-bottom: var(--space-1);
}
.partner-progress__step.is-active .partner-progress__number,
.partner-progress__step.is-active .partner-progress__label {
  color: var(--color-paper-on-dark);
}
.partner-progress__label {
  font-family: var(--font-ui);
  font-size: var(--fs-000);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-paper-on-dark-soft);
}

/* ---- Form shell ---- */
.partner-form {
  max-width: 1200px;
  margin-inline: auto;
}
.partner-step {
  display: none;
}
.partner-step.is-active {
  display: block;
  animation: partner-step-in 300ms ease;
}
@keyframes partner-step-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.partner-step__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6) var(--space-7);
  align-items: start;
}
.partner-field--full {
  grid-column: 1 / -1;
}

.partner-field__label {
  display: block;
  font-family: var(--font-ui);
  font-size: var(--fs-000);
  letter-spacing: 0.06em;
  color: var(--color-paper-on-dark-soft);
  margin: 0 0 var(--space-2);
}
.partner-field__input,
.partner-field__textarea,
.partner-field__select {
  width: 100%;
  background: rgba(245, 241, 233, 0.04);
  border: 1px solid var(--color-copper-temp);
  color: var(--color-paper-on-dark);
  font-family: var(--font-body);
  font-size: var(--fs-0);
  padding: var(--space-3) var(--space-4);
  transition: border-color var(--transition-fast), background var(--transition-fast);
}
.partner-field__textarea {
  resize: vertical;
  min-height: 90px;
}
.partner-field__input::placeholder,
.partner-field__textarea::placeholder {
  color: var(--color-paper-on-dark-soft);
}
.partner-field__input:focus-visible,
.partner-field__textarea:focus-visible,
.partner-field__select:focus-visible {
  background: rgba(245, 241, 233, 0.07);
  border-color: var(--color-cherry-temp);
}

.partner-field__required {
  color: var(--color-cherry-temp);
}

/* Set by partner-form.js when a required field fails validation on "Next" —
   cleared automatically as soon as the visitor corrects it. */
.partner-field__input.has-error,
.partner-field__textarea.has-error,
.partner-field__select.has-error {
  border-color: var(--color-cherry-temp);
  background: rgba(155, 40, 40, 0.08);
}
.partner-field__inline-error {
  margin: var(--space-2) 0 0;
  font-family: var(--font-ui);
  font-size: var(--fs-000);
  color: var(--color-cherry-temp);
}

/* Radio / checkbox groups, styled square to match the approved draft rather
   than relying on native OS control appearance. */
.partner-option-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-5);
}
.partner-option {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--fs-0);
  color: var(--color-paper-on-dark-soft);
  cursor: pointer;
}
.partner-option input {
  appearance: none;
  width: 16px;
  height: 16px;
  border: 1px solid var(--color-copper-temp);
  background: rgba(245, 241, 233, 0.04);
  display: inline-block;
  position: relative;
  flex: none;
  cursor: pointer;
}
.partner-option input[type="radio"] {
  border-radius: 50%;
}
.partner-option input:checked {
  background: var(--color-cherry-temp);
  border-color: var(--color-cherry-temp);
}
.partner-option input:checked::after {
  content: '';
  position: absolute;
  inset: 3px;
  background: var(--color-paper-on-dark);
  border-radius: inherit;
}
.partner-option input:focus-visible {
  outline: 2px solid var(--color-cherry-temp);
  outline-offset: 2px;
}

.partner-field--conditional {
  border-inline-start: 1px solid var(--color-line-on-dark);
  padding-inline-start: var(--space-5);
}
.partner-field--conditional[hidden] {
  display: none;
}

/* File upload (Company Portfolio) */
.partner-file {
  border: 1px dashed var(--color-copper-temp);
  background: rgba(245, 241, 233, 0.03);
  padding: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.partner-file__button {
  display: inline-block;
  border: 1px solid var(--color-copper-temp);
  color: var(--color-paper-on-dark);
  font-family: var(--font-ui);
  font-size: var(--fs-000);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: var(--space-3) var(--space-5);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
}
.partner-file__button:hover,
.partner-file__button:focus-visible {
  background: var(--color-copper-temp);
  color: var(--color-noir-temp);
}
.partner-file__name {
  font-size: var(--fs-00);
  color: var(--color-paper-on-dark-soft);
}

/* ---- Step navigation ---- */
.partner-step-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-line-on-dark);
}
.partner-btn {
  display: inline-block;
  font-family: var(--font-ui);
  font-size: var(--fs-00);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: var(--space-4) var(--space-7);
  transition: background var(--transition-fast), color var(--transition-fast), opacity var(--transition-fast);
  border: 1px solid var(--color-line-on-dark);
  background: transparent;
  color: var(--color-paper-on-dark);
  cursor: pointer;
}
.partner-btn--primary {
  background: var(--color-cherry-temp);
  border-color: var(--color-cherry-temp);
}
.partner-btn--primary:hover,
.partner-btn--primary:focus-visible {
  background: color-mix(in srgb, var(--color-cherry-temp) 85%, black);
}
.partner-btn--ghost:hover,
.partner-btn--ghost:focus-visible {
  border-color: var(--color-paper-on-dark);
}
.partner-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}
.partner-btn[hidden] {
  display: none;
}

/* ---- Step 4: Review ---- */
.partner-review {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}
.partner-review__group h3 {
  font-family: var(--font-ui);
  font-size: var(--fs-000);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-copper-temp);
  margin: 0 0 var(--space-4);
}
.partner-review__row {
  font-size: var(--fs-00);
  line-height: 1.6;
  color: var(--color-paper-on-dark-soft);
  margin: 0 0 var(--space-3);
}
.partner-review__row strong {
  display: block;
  color: var(--color-paper-on-dark);
  font-weight: 500;
}
.partner-review__empty {
  color: var(--color-paper-on-dark-soft);
  font-style: italic;
  font-size: var(--fs-00);
}

.partner-review-bottom {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-7);
  padding-top: var(--space-7);
  border-top: 1px solid var(--color-line-on-dark);
}
.partner-review-bottom h3 {
  font-family: var(--font-ui);
  font-size: var(--fs-0);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-paper-on-dark);
  margin: 0 0 var(--space-4);
}

.partner-legal-box {
  border: 1px solid var(--color-line-on-dark);
  padding: var(--space-5);
  color: var(--color-paper-on-dark-soft);
  font-size: var(--fs-00);
  line-height: 1.7;
  font-style: italic;
  margin: 0 0 var(--space-4);
}
.partner-legal-check {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--fs-00);
  color: var(--color-paper-on-dark-soft);
  cursor: pointer;
}
.partner-legal-check input {
  margin-top: 3px;
}

/* ---- Signature pad ---- */
.partner-signature {
  border: 1px solid var(--color-copper-temp);
  background: rgba(245, 241, 233, 0.03);
}
.partner-signature__canvas {
  display: block;
  width: 100%;
  height: 180px;
  touch-action: none;
  cursor: crosshair;
}
.partner-signature__footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--color-line-on-dark);
  padding: var(--space-2) var(--space-4);
}
.partner-signature__hint {
  font-size: var(--fs-000);
  color: var(--color-paper-on-dark-soft);
}
.partner-signature__clear {
  font-family: var(--font-ui);
  font-size: var(--fs-000);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-paper-on-dark-soft);
  border-bottom: 1px solid currentColor;
  background: none;
  cursor: pointer;
  padding: 0;
}
.partner-signature__clear:hover {
  color: var(--color-paper-on-dark);
}
.partner-signature.has-signature {
  border-color: var(--color-cherry-temp);
}
.partner-field-error {
  color: var(--color-cherry-temp);
  font-size: var(--fs-000);
  margin-top: var(--space-2);
  display: none;
}
.partner-field-error.is-visible {
  display: block;
}

/* ---- Success state ---- */
.partner-success {
  display: none;
  text-align: center;
  max-width: 36rem;
  margin-inline: auto;
  padding-block: var(--space-8);
}
.partner-success.is-visible {
  display: block;
}
.partner-success__icon {
  width: 56px;
  height: 56px;
  border: 1px solid var(--color-cherry-temp);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-6);
  color: var(--color-cherry-temp);
}
.partner-success__heading {
  font-size: clamp(1.75rem, 3vw, var(--fs-4));
  color: var(--color-paper-on-dark);
  margin: 0 0 var(--space-4);
}
.partner-success__body {
  color: var(--color-paper-on-dark-soft);
  font-size: var(--fs-1);
  line-height: 1.7;
  margin: 0;
}
.partner-form-shell.is-submitted .partner-form-shell__form {
  display: none;
}

@media (max-width: 900px) {
  .partner-progress {
    grid-template-columns: repeat(2, 1fr);
    row-gap: var(--space-6);
  }
  .partner-step__grid,
  .partner-review,
  .partner-review-bottom {
    grid-template-columns: 1fr;
  }
}

/* ---- Phone: Previous/Next/Submit stack full-width instead of being
   crushed into a row that "SUBMIT APPLICATION" (or any longer future
   label) can overflow past the viewport edge — a real overflow bug found
   during Phase 5 QA at 390px. Primary action (Next/Submit) first so the
   most likely tap target is reached first on a phone, Previous below it. */
@media (max-width: 560px) {
  .partner-step-actions {
    flex-direction: column-reverse;
    align-items: stretch;
    gap: var(--space-4);
  }
  .partner-btn {
    width: 100%;
    text-align: center;
    padding-inline: var(--space-5);
  }
}

/* Client feedback: mobile typography still slightly large — small further
   reduction, not a redesign. */
@media (max-width: 640px) {
  .partner-page__heading {
    font-size: clamp(2.2rem, 5vw, var(--fs-6));
  }
}

/* Client feedback, round 2: still slightly large — one further ~5% pass.
   Desktop (the var(--fs-X) ceiling) is untouched either way. */
@media (max-width: 640px) {
  .partner-page__heading {
    font-size: clamp(2.09rem, 5vw, var(--fs-6));
  }
}