/* ===========================================================================
 * Apex Tyres — Booking Page Styles
 * ===========================================================================
 * Uses CSS custom properties from style.css (no :root redefined).
 * Naming prefix: bk- (booking)
 * =========================================================================== */

/* ── Hero Section ──────────────────────────────────────────────────────── */
.bk-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}

.bk-hero-img {
  position: absolute;
  inset: 0;
  z-index: -10;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.bk-hero-overlay {
  position: absolute;
  inset: 0;
  z-index: -10;
}

.bk-hero-overlay--r {
  background: linear-gradient(
    to right,
    rgba(43, 45, 46, 0.85),
    rgba(43, 45, 46, 0.5),
    rgba(43, 45, 46, 0.1)
  );
}

.bk-hero-overlay--b {
  background: linear-gradient(
    to top,
    rgba(43, 45, 46, 0.8),
    rgba(43, 45, 46, 0.15),
    transparent
  );
}

.bk-hero-content {
  position: relative;
  padding-block: 5rem;
}

@media (min-width: 768px) {
  .bk-hero-content {
    padding-block: 6rem;
  }
}

.bk-eyebrow {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--primary);
  margin: 0;
}

.bk-hero-heading {
  margin-top: 0.75rem;
  font-size: 2.25rem;
  color: var(--fg);
}

@media (min-width: 640px) {
  .bk-hero-heading {
    font-size: 3rem;
  }
}

@media (min-width: 1024px) {
  .bk-hero-heading {
    font-size: 3.75rem;
  }
}

.bk-hero-sub {
  margin-top: 1.25rem;
  max-width: 42rem;
  font-size: 1rem;
  color: var(--muted-fg);
  line-height: 1.625;
}

@media (min-width: 640px) {
  .bk-hero-sub {
    font-size: 1.125rem;
  }
}

/* ── Main Section ──────────────────────────────────────────────────────── */
.bk-section {
  padding-block: clamp(3.5rem, 6vw, 5rem);
}

/* ── Layout Grid ───────────────────────────────────────────────────────── */
.bk-grid {
  display: grid;
  gap: 2rem;
}

@media (min-width: 1024px) {
  .bk-grid {
    grid-template-columns: minmax(0, 1fr) 360px;
  }
}

/* ── Form Card ─────────────────────────────────────────────────────────── */
.bk-card {
  background: var(--card);
  color: var(--card-fg);
  border: 1px solid var(--border);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-elegant);
  padding: 1.5rem;
}

@media (min-width: 640px) {
  .bk-card {
    padding: 2.5rem;
  }
}

/* ── Form Label Bar ────────────────────────────────────────────────────── */
.bk-form-label-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.28em;
  color: var(--primary);
}

.bk-form-label-line {
  display: inline-block;
  width: 2rem;
  height: 1px;
  background: var(--primary);
  opacity: 0.6;
}

/* ── Form Intro ────────────────────────────────────────────────────────── */
.bk-form-title {
  font-size: 1.875rem;
  color: var(--fg);
  margin-bottom: 0.25rem;
}

@media (min-width: 640px) {
  .bk-form-title {
    font-size: 2.25rem;
  }
}

.bk-form-desc {
  max-width: 36rem;
  font-size: 0.875rem;
  color: var(--muted-fg);
  margin-bottom: 2rem;
}

/* ── Form ──────────────────────────────────────────────────────────────── */
.bk-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* ── Fieldset ──────────────────────────────────────────────────────────── */
.bk-fieldset {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding: 1.25rem;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-xl);
  background: rgba(43, 45, 46, 0.4);
}

@media (min-width: 640px) {
  .bk-fieldset {
    padding: 1.5rem;
  }
}

.bk-fieldset-head {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.bk-fieldset-title {
  font-size: 1.125rem;
  line-height: 1.25;
  color: var(--fg);
  margin-bottom: 0.125rem;
}

.bk-fieldset-desc {
  font-size: 0.75rem;
  color: var(--muted-fg);
  margin: 0;
}

/* ── Step Number Badge ─────────────────────────────────────────────────── */
.bk-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  min-width: 1.75rem;
  margin-top: 0.125rem;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--primary);
  background: var(--primary-dim);
  border-radius: var(--radius-md);
  box-shadow: inset 0 0 0 1px var(--primary-medium);
}

/* ── Field Row ─────────────────────────────────────────────────────────── */
.bk-field-row {
  display: grid;
  gap: 1rem;
}

@media (min-width: 640px) {
  .bk-field-row {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ── Individual Field ──────────────────────────────────────────────────── */
.bk-field {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

/* Override: full-width fields inside fieldset but outside row */
.bk-fieldset > .bk-field {
  grid-column: 1 / -1;
}

/* ── Label ─────────────────────────────────────────────────────────────── */
.bk-label {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted-fg);
}

.bk-label-icon {
  width: 0.875rem;
  height: 0.875rem;
  flex-shrink: 0;
  color: var(--primary);
  opacity: 0.8;
}

/* ── Form Footer ───────────────────────────────────────────────────────── */
.bk-form-footer {
  display: flex;
  flex-direction: column-reverse;
  align-items: stretch;
  gap: 0.75rem;
}

@media (min-width: 640px) {
  .bk-form-footer {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.bk-form-legal {
  font-size: 0.75rem;
  color: var(--muted-fg);
  margin: 0;
}

/* ── Submit Button ─────────────────────────────────────────────────────── */
.bk-btn-submit {
  min-width: 14rem;
  padding-inline: 2rem;
}

.bk-btn-submit .bk-btn-chevron {
  margin-left: 0.25rem;
  width: 1rem;
  height: 1rem;
  transition: transform var(--transition-fast);
}

.bk-btn-submit:hover .bk-btn-chevron {
  transform: translateX(2px);
}

/* ── Sidebar ───────────────────────────────────────────────────────────── */
.bk-aside {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* ── Sidebar Card ──────────────────────────────────────────────────────── */
.bk-aside-card {
  background: var(--card);
  color: var(--card-fg);
  border: 1px solid var(--border);
  border-radius: var(--radius-2xl);
  padding: 1.5rem;
}

.bk-aside-title {
  font-size: 1.125rem;
  color: var(--fg);
  margin-bottom: 0.375rem;
}

/* ── Steps List ────────────────────────────────────────────────────────── */
.bk-steps {
  list-style: none;
  padding: 0;
  margin: 1.25rem 0 0;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.bk-step {
  display: flex;
  gap: 1rem;
}

.bk-step:last-child .bk-step-line {
  display: none;
}

/* ── Step Icon ─────────────────────────────────────────────────────────── */
.bk-step-icon-wrap {
  position: relative;
  flex-shrink: 0;
}

.bk-step-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background: var(--primary-dim);
  border-radius: var(--radius-lg);
  box-shadow: inset 0 0 0 1px var(--primary-medium);
}

.bk-step-icon-svg {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--primary);
}

.bk-step-line {
  position: absolute;
  left: 50%;
  top: 2.5rem;
  width: 1px;
  height: calc(100% - 2.5rem + 1.25rem);
  transform: translateX(-50%);
  background: var(--border);
}

/* ── Step Content ──────────────────────────────────────────────────────── */
.bk-step-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--fg);
  margin: 0 0 0.125rem;
}

.bk-step-desc {
  font-size: 0.75rem;
  color: var(--muted-fg);
  margin: 0;
  line-height: 1.5;
}

/* ── Contact List ──────────────────────────────────────────────────────── */
.bk-contact-list {
  list-style: none;
  padding: 0;
  margin: 1.25rem 0 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  font-size: 0.875rem;
}

.bk-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.bk-contact-icon {
  flex-shrink: 0;
  width: 1rem;
  height: 1rem;
  margin-top: 0.25em;
  color: var(--primary);
}

.bk-contact-text {
  color: var(--muted-fg);
}

.bk-contact-link {
  color: var(--fg);
  transition: color var(--transition-fast);
}

.bk-contact-link:hover {
  color: var(--primary);
}

/* ── Trust Badges ──────────────────────────────────────────────────────── */
.bk-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.25rem;
}

.bk-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.75rem;
  font-size: 11px;
  font-weight: 500;
  color: var(--primary);
  background: var(--primary-dim);
  border: 1px solid var(--primary-medium);
  border-radius: 9999px;
}

.bk-badge svg {
  width: 0.875rem;
  height: 0.875rem;
  flex-shrink: 0;
}

/* ── Status Messages ─────────────────────────────────────────────────────── */
.bk-message {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  border-radius: var(--radius-lg);
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
}

.bk-message--success {
  background: color-mix(in srgb, var(--success, #28a745) 8%, transparent);
  border: 1px solid color-mix(in srgb, var(--success, #28a745) 25%, transparent);
  color: var(--success, #28a745);
}

.bk-message--error {
  background: color-mix(in srgb, var(--danger, #dc3545) 7%, transparent);
  border: 1px solid color-mix(in srgb, var(--danger, #dc3545) 22%, transparent);
}

.bk-message-icon {
  flex-shrink: 0;
  margin-top: 0.125rem;
}

.bk-message--success .bk-message-icon {
  color: var(--success, #28a745);
}

.bk-message--error .bk-message-icon {
  color: var(--danger, #dc3545);
}

.bk-message-body {
  flex: 1;
  min-width: 0;
}

.bk-message-title {
  font-weight: 600;
  font-size: 0.9rem;
  margin: 0 0 0.25rem;
  color: var(--fg);
}

.bk-message--error .bk-message-title {
  color: var(--danger, #dc3545);
}

.bk-message-text {
  margin: 0;
  color: var(--muted-fg);
  line-height: 1.5;
}

.bk-message-list {
  margin: 0.25rem 0 0;
  padding-left: 1.25rem;
  list-style: disc;
  color: var(--danger, #dc3545);
  font-size: 0.8125rem;
  line-height: 1.6;
}

.bk-message-list li {
  margin-bottom: 0.125rem;
}

/* ── Field Error State ──────────────────────────────────────────────────── */
.bk-field.is-error .input,
.bk-field.is-error .select,
.bk-field.is-error .textarea {
  border-color: var(--danger, #dc3545);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--danger, #dc3545) 12%, transparent);
}

.bk-field-error {
  display: none;
  font-size: 0.6875rem;
  color: var(--danger, #dc3545);
  margin-top: 0.25rem;
  font-weight: 500;
}

.bk-field.is-error .bk-field-error {
  display: block;
}

/* ── Testimonial Card ──────────────────────────────────────────────────── */
.bk-testimonial-card {
  background: linear-gradient(135deg, var(--primary-dim), var(--card), var(--card));
  border: 1px solid var(--border);
  border-radius: var(--radius-2xl);
  padding: 1.5rem;
}

.bk-testimonial-stars {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  color: var(--primary);
  margin-bottom: 0.75rem;
}

.bk-testimonial-stars svg {
  width: 1rem;
  height: 1rem;
}

.bk-testimonial-rating {
  margin-left: 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--primary);
}

.bk-testimonial-quote {
  font-size: 0.875rem;
  font-style: italic;
  color: var(--muted-fg);
  line-height: 1.6;
  margin: 0 0 0.75rem;
}

.bk-testimonial-author {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--fg);
  margin: 0;
}