/* ============================================================
   Demo / Walkthrough page styles
   ============================================================ */

/* Header */
.demo-header {
  max-width: var(--container-lg);
  margin: 0 auto;
  padding: 92px var(--gutter) 64px;
  border-bottom: 1px solid var(--border-subtle);
}

.demo-header__content {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr) minmax(0, 1fr);
  gap: 48px;
}

.demo-header__text {
  grid-column: 2 / -1;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.demo-header__eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--reef-600);
}

.demo-header h1 {
  font-size: var(--text-5xl);
  line-height: 1.05;
  margin: 0;
}

.demo-header__lead {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--text-body);
  margin: 0;
}

/* Steps */
.demo-step {
  max-width: var(--container-lg);
  margin: 0 auto;
  padding: 76px var(--gutter) 0;
}

.demo-step__grid {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr) minmax(0, 1fr);
  gap: 48px;
  align-items: start;
}

.demo-step__grid--wide {
  grid-template-columns: 96px minmax(0, 1fr);
}

.demo-step__num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-subtle);
  padding-top: 10px;
}

.demo-step__text {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.demo-step__text h2 {
  font-size: var(--text-3xl);
  line-height: 1.1;
  margin: 0;
}

.demo-step__text p {
  font-size: var(--text-md);
  line-height: 1.7;
  color: var(--text-body);
  margin: 0;
}

.demo-step__text a {
  color: var(--reef-600);
  text-decoration: none;
  border-bottom: 1px solid var(--reef-200);
}

.demo-step__text a:hover {
  color: var(--reef-700);
}

/* Image cards */
.demo-image-card {
  position: relative;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  background: var(--white);
}

.demo-image-card img {
  width: 100%;
  display: block;
}

.demo-image-card--faded img {
  opacity: 0.75;
}

.demo-image-card__overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-display);
  font-size: 30px;
  letter-spacing: 0.035em;
  color: var(--text-strong);
  background: rgba(255, 255, 255, 0.94);
  padding: 10px 22px;
  border-radius: var(--radius-md);
  white-space: nowrap;
  box-shadow: var(--shadow-sm);
}

.demo-image-card__caption {
  padding: 14px 18px;
  font-size: 13px;
  color: var(--text-muted);
  border-top: 1px solid var(--border-subtle);
}

/* Image pair */
.demo-image-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 380px));
  gap: 28px;
}

.demo-image-pair__item {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.demo-image-pair__label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--text-muted);
}

.demo-image-pair__label--highlight {
  color: var(--reef-600);
}

.demo-image-pair__item img {
  width: 100%;
  border-radius: var(--radius-2xl);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  display: block;
}

/* Step 4 - Evidence section */
.demo-evidence {
  margin-top: 76px;
  border-top: 1px solid var(--border-subtle);
  background: var(--surface-sunken);
}

.demo-evidence__inner {
  max-width: var(--container-lg);
  margin: 0 auto;
  padding: 76px var(--gutter) 84px;
}

.demo-evidence__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 32px;
}

.demo-evidence__card {
  background: var(--white);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-2xl);
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.demo-evidence__card-header {
  display: flex;
  gap: 12px;
  align-items: baseline;
}

.demo-evidence__card-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--reef-600);
}

.demo-evidence__card-content {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.demo-evidence__card-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-strong);
}

.demo-evidence__card-desc {
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-muted);
}

.demo-evidence__card-image {
  height: 88px;
  width: auto;
  max-width: 100%;
  border-radius: var(--radius-md);
  align-self: center;
}

/* Honest reading section (now inside evidence section) */
.demo-evidence .demo-honest__content {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 56px;
  padding-top: 48px;
  border-top: 1px solid var(--border-subtle);
}

.demo-honest__content {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 34em;
}

.demo-honest__eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--text-muted);
}

.demo-honest__content h2 {
  font-size: var(--text-3xl);
  line-height: 1.1;
  margin: 0;
}

.demo-honest__content p {
  font-size: var(--text-md);
  line-height: 1.7;
  color: var(--text-body);
  margin: 0;
}

/* Link cards section */
.demo-links-section {
  border-top: 1px solid var(--border-subtle);
}

.demo-links-section__inner {
  max-width: var(--container-lg);
  margin: 0 auto;
  padding: 64px var(--gutter) 80px;
}

/* Link cards */
.demo-links {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.demo-links--horizontal {
  flex-direction: row;
  gap: 24px;
}

.demo-links--horizontal .demo-link-card {
  flex: 1;
}

.demo-link-card {
  display: block;
  text-decoration: none;
  background: var(--surface-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-2xl);
  padding: 24px;
  transition: var(--transition-control);
}

.demo-link-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
}

.demo-link-card__eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--reef-600);
  margin-bottom: 8px;
}

.demo-link-card__title {
  font-family: var(--font-display);
  font-size: 22px;
  line-height: 1.15;
  letter-spacing: 0.035em;
  color: var(--text-strong);
  margin-bottom: 8px;
}

.demo-link-card__desc {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 1024px) {
  .demo-header__content {
    grid-template-columns: 1fr;
  }

  .demo-header__text {
    grid-column: 1;
  }

  .demo-step__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .demo-step__grid--wide {
    grid-template-columns: 1fr;
  }

  .demo-step__num {
    padding-top: 0;
  }

  .demo-evidence__grid {
    grid-template-columns: 1fr;
  }

  .demo-image-pair {
    grid-template-columns: 1fr;
  }

  .demo-links--horizontal {
    flex-direction: column;
  }
}

@media (max-width: 768px) {
  .demo-header {
    padding: 72px var(--gutter) 48px;
  }

  .demo-header h1 {
    font-size: var(--text-3xl);
  }

  .demo-step {
    padding: 48px var(--gutter) 0;
  }

  .demo-evidence__inner {
    padding: 48px var(--gutter) 56px;
  }

  .demo-links-section__inner {
    padding: 48px var(--gutter) 56px;
  }

  .demo-image-card__overlay {
    font-size: 20px;
    padding: 8px 16px;
  }
}