/* ── Shared page styles for: about, lab, contact, audit ── */

/* Page hero */
.page-hero {
  background: var(--aa-white);
  padding: calc(64px + var(--aa-space-12)) 0 var(--aa-space-10);
}

.page-hero--dark {
  background: var(--aa-black);
  color: var(--aa-white);
}

.page-hero__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--aa-space-6);
}

.page-hero__label {
  font-family: var(--aa-font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  opacity: 0.75;
  margin-bottom: var(--aa-space-4);
  display: block;
}

.page-hero__title {
  font-family: var(--aa-font-sans);
  font-weight: 700;
  font-size: clamp(40px, 6vw, 80px);
  line-height: 1.0;
  letter-spacing: -0.02em;
  margin-bottom: var(--aa-space-4);
}

.page-hero__tagline {
  font-size: 20px;
  line-height: 1.6;
  max-width: 680px;
  opacity: 0.75;
}

/* Content section */
.page-section {
  padding: var(--aa-space-10) 0;
}

.page-section--gray { background: var(--aa-gray); }
.page-section--white { background: var(--aa-white); }
.page-section--black {
  background: var(--aa-black);
  color: var(--aa-white);
}

.page-section__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--aa-space-6);
}

.page-section__header {
  margin-bottom: var(--aa-space-6);
}

.page-section__label {
  font-family: var(--aa-font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.25em;
  opacity: 0.75;
  display: block;
  margin-bottom: var(--aa-space-3);
}

.page-section__title {
  font-family: var(--aa-font-sans);
  font-weight: 700;
  font-size: clamp(24px, 3.5vw, 48px);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.page-section__body {
  font-size: 17px;
  line-height: 1.75;
  max-width: 720px;
  opacity: 0.85;
}

.page-section__body p { margin-bottom: var(--aa-space-3); }
.page-section__body p:last-child { margin-bottom: 0; }

/* Two-column layout */
.page-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--aa-space-6);
  align-items: start;
}

@media (max-width: 768px) {
  .page-columns { grid-template-columns: 1fr; }
}

/* Numbered items (methodology, process steps) */
.page-items {
  display: flex;
  flex-direction: column;
  gap: var(--aa-space-4);
}

.page-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: var(--aa-space-3);
  align-items: start;
  opacity: 0;
  transform: translateX(-24px);
  transition:
    opacity 450ms var(--aa-ease),
    transform 450ms var(--aa-ease);
}

.page-item.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.page-item__num {
  font-family: var(--aa-font-mono);
  font-weight: 700;
  font-size: 24px;
  opacity: 0.35;
  line-height: 1;
}

.page-item__content {}

.page-item__title {
  font-family: var(--aa-font-sans);
  font-weight: 700;
  font-size: 18px;
  margin-bottom: var(--aa-space-1);
  letter-spacing: -0.01em;
}

.page-item__desc {
  font-size: 15px;
  line-height: 1.65;
  opacity: 0.75;
  max-width: 500px;
}

/* Bullet list */
.page-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--aa-space-2);
}

.page-list li {
  font-family: var(--aa-font-mono);
  font-size: 13px;
  opacity: 0.75;
  padding-left: var(--aa-space-3);
  position: relative;
  line-height: 1.6;
}

.page-list li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--aa-gold);
}

/* Contact form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--aa-space-3);
  max-width: 640px;
}

.contact-form__group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.contact-form label {
  font-family: var(--aa-font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.2em;
  opacity: 0.75;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  background: var(--aa-white);
  border: 1px solid var(--aa-black);
  padding: var(--aa-space-2);
  font-family: var(--aa-font-mono);
  font-size: 13px;
  color: var(--aa-black);
  width: 100%;
  transition: box-shadow var(--aa-duration-fast) var(--aa-ease);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  box-shadow: var(--aa-shadow-sm);
}

.contact-form textarea {
  min-height: 140px;
  resize: vertical;
  font-family: var(--aa-font-mono);
  line-height: 1.6;
}

.contact-form select {
  appearance: none;
  cursor: pointer;
}

.contact-form__submit {
  align-self: flex-start;
  margin-top: var(--aa-space-2);
}

/* Audit price block */
.audit-price-block {
  background: var(--aa-black);
  color: var(--aa-white);
  padding: var(--aa-space-5);
  display: inline-block;
  border: 1px solid #111;
}

.audit-price-block__label {
  font-family: var(--aa-font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: var(--aa-gold);
  margin-bottom: var(--aa-space-2);
}

.audit-price-block__amount {
  font-family: var(--aa-font-mono);
  font-weight: 700;
  font-size: 72px;
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: var(--aa-space-1);
}

.audit-price-block__note {
  font-family: var(--aa-font-mono);
  font-size: 11px;
  opacity: 0.75;
  letter-spacing: 0.1em;
}

/* Lab resource grid */
.lab-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--aa-space-4);
  margin-top: var(--aa-space-5);
}

@media (max-width: 900px) { .lab-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 580px) { .lab-grid { grid-template-columns: 1fr; } }

.lab-card {
  background: var(--aa-white);
  border: 1px solid var(--aa-black);
  padding: var(--aa-space-4);
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 500ms var(--aa-ease),
    transform 500ms var(--aa-ease),
    box-shadow 180ms var(--aa-ease);
}

.lab-card.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.lab-card:hover {
  box-shadow: var(--aa-shadow-md);
}

.lab-card__id {
  font-family: var(--aa-font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.2em;
  opacity: 0.75;
  margin-bottom: var(--aa-space-2);
}

.lab-card__title {
  font-family: var(--aa-font-sans);
  font-weight: 700;
  font-size: 20px;
  margin-bottom: var(--aa-space-2);
}

.lab-card__desc {
  font-size: 14px;
  line-height: 1.65;
  opacity: 0.75;
}

/* Red lines grid (about) */
.redlines-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin-top: var(--aa-space-5);
  border: 1px solid var(--aa-black);
}

@media (max-width: 640px) { .redlines-grid { grid-template-columns: 1fr; } }

.redlines-item {
  padding: var(--aa-space-4);
  border-right: 1px solid var(--aa-black);
  border-bottom: 1px solid var(--aa-black);
}

.redlines-item:nth-child(2n) { border-right: none; }
.redlines-item:last-child,
.redlines-item:nth-last-child(2):nth-child(odd) { border-bottom: none; }

.redlines-item__icon {
  font-family: var(--aa-font-mono);
  font-size: 20px;
  margin-bottom: var(--aa-space-2);
  color: var(--aa-gold);
}

.redlines-item__title {
  font-family: var(--aa-font-sans);
  font-weight: 700;
  font-size: 15px;
  margin-bottom: var(--aa-space-1);
}

.redlines-item__desc {
  font-size: 13px;
  line-height: 1.6;
  opacity: 0.75;
}