/* ================================================
   VERTICAR — Sub-page Styles
   Shared across work/, journal/, ar-mirror, ar-glasses
   ================================================ */

/* ── PAGE HERO ──────────────────────────────────── */
.page-hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: flex-end;
  padding: 0 0 80px;
  overflow: hidden;
  background: var(--bg);
}

/* Text-only hero (no video/image fill) — content sits below nav with consistent top spacing */
.page-hero--intro {
  align-items: flex-start;
  min-height: auto;
  padding-top: calc(var(--nav-h) + 100px);
  padding-bottom: 80px;
}
.page-hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(0.35) saturate(0.7);
  transform: scale(1.06);
  transition: transform 8s ease;
}
.page-hero:hover .page-hero-bg { transform: scale(1.0); }

.page-hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.3) saturate(0.6);
}
.page-hero-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(5,8,15,0.3) 0%,
    rgba(5,8,15,0.5) 50%,
    rgba(5,8,15,0.95) 100%
  );
}
/* Ambient glow blob */
.page-hero::before {
  content: '';
  position: absolute;
  top: 30%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(0,212,255,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.page-hero-content {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}
.page-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray-dim);
  margin-bottom: 32px;
  transition: color 0.2s;
  text-decoration: none;
}
.page-back:hover { color: var(--cyan); }
.page-back::before { content: '←'; }

.page-category {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.page-category::before { content: ''; display: block; width: 24px; height: 1px; background: var(--cyan); }

.page-title {
  font-size: clamp(38px, 6.5vw, 88px);
  font-weight: 700;
  line-height: 1.0;
  letter-spacing: -0.04em;
  margin-bottom: 24px;
  max-width: 900px;
}
.page-subtitle {
  font-size: clamp(16px, 2.2vw, 20px);
  color: var(--gray);
  line-height: 1.65;
  max-width: 620px;
  margin-bottom: 40px;
}
.page-meta {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}
.page-meta-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.page-meta-label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray-dim);
}
.page-meta-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--white);
}

/* ── PAGE BODY ──────────────────────────────────── */
.page-body {
  background: var(--bg);
}
.page-section {
  padding: 100px 0;
  border-bottom: 1px solid var(--border);
}
.page-section:last-child { border-bottom: none; }
.page-section--alt { background: var(--bg-alt); }

/* ── FEATURE GRID ───────────────────────────────── */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
  margin-top: 64px;
}
.feature-card {
  background: var(--bg);
  padding: 44px 36px;
  position: relative;
  overflow: hidden;
  transition: background 0.3s;
}
.feature-card:hover { background: rgba(0,212,255,0.025); }
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 2px;
  background: linear-gradient(to right, transparent, var(--cyan), transparent);
  transform: scaleX(0);
  transition: transform 0.5s var(--ease-spring);
}
.feature-card:hover::before { transform: scaleX(1); }
.feature-icon {
  font-size: 28px;
  margin-bottom: 20px;
  display: block;
}
.feature-card h3 {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-bottom: 12px;
}
.feature-card p {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.72;
}

/* ── TWO-COL LAYOUT ─────────────────────────────── */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.two-col--flip { direction: rtl; }
.two-col--flip > * { direction: ltr; }

.col-visual {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  aspect-ratio: 9/16;
  border: 1px solid var(--border);
  max-width: 360px;
  justify-self: center;
}
.col-visual img,
.col-visual video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Video-specific column: fills the full column — works for single and multi-video layouts */
.col-video {
  position: relative;
}
.col-video video {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--r-lg);
}
/* Cap direct-child single portrait videos without restricting multi-video grids */
.col-video > video {
  max-width: 360px;
  margin: 0 auto;
}
.col-visual-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(5,8,15,0.5) 0%, transparent 60%);
}

.col-content { padding: 20px 0; }
.col-content .section-label { margin-bottom: 18px; }
.col-content .section-title { margin-bottom: 28px; }
.col-content p {
  color: var(--gray);
  font-size: 15px;
  line-height: 1.78;
  margin-bottom: 18px;
}
.col-content ul {
  margin: 16px 0 24px 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.col-content ul li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14.5px;
  color: var(--gray);
  line-height: 1.6;
}
.col-content ul li::before {
  content: '→';
  color: var(--cyan);
  font-family: var(--font-mono);
  flex-shrink: 0;
  margin-top: 2px;
}

/* ── SPEC TABLE ─────────────────────────────────── */
.spec-table {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
  margin-top: 48px;
}
.spec-row {
  background: var(--bg-alt);
  padding: 22px 28px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.spec-row:nth-child(4n+1),
.spec-row:nth-child(4n+2) { background: var(--bg); }
.spec-label {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray-dim);
}
.spec-value {
  font-size: 15px;
  font-weight: 600;
  color: var(--white);
}
.spec-value--cyan { color: var(--cyan); }

/* ── FULL-WIDTH MEDIA ───────────────────────────── */
.full-media {
  width: 100%;
  aspect-ratio: 16/7;
  object-fit: cover;
  display: block;
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
  overflow: hidden;
}
.full-media video,
.full-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ── QUOTE BLOCK ────────────────────────────────── */
.quote-block {
  border-left: 2px solid var(--cyan);
  padding: 24px 36px;
  margin: 48px 0;
  background: rgba(0,212,255,0.03);
  border-radius: 0 var(--r) var(--r) 0;
}
.quote-block blockquote {
  font-size: clamp(18px, 2.5vw, 26px);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.45;
  color: var(--white);
  margin-bottom: 14px;
}
.quote-block cite {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--cyan);
  font-style: normal;
}

/* ── CTA BAND ───────────────────────────────────── */
.cta-band {
  padding: 100px 0;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  text-align: center;
}
.cta-band .section-label {
  justify-content: center;
  margin-bottom: 20px;
}
.cta-band .section-label::before { display: none; }
.cta-band h2 {
  font-size: clamp(32px, 5vw, 62px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 20px;
}
.cta-band p {
  font-size: 17px;
  color: var(--gray);
  margin-bottom: 44px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.65;
}
.cta-band .btn-row {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── RELATED GRID ───────────────────────────────── */
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 56px;
}
.related-card {
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  display: block;
  transition: border-color 0.3s, transform 0.3s var(--ease-spring);
}
.related-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-5px);
}
.related-card-img {
  height: 180px;
  background-size: cover;
  background-position: center;
  position: relative;
}
.related-card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 40%, rgba(8,13,24,0.85) 100%);
}
.related-card-body {
  padding: 22px 24px 26px;
  background: var(--bg-card);
}
.related-card-platform {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 8px;
  opacity: 0.8;
}
.related-card-title {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}
.related-card-desc {
  font-size: 13px;
  color: var(--gray);
  line-height: 1.6;
}

/* ── ARTICLE BODY (journal) ─────────────────────── */
.article-body {
  max-width: 740px;
  margin: 0 auto;
  padding: 80px 32px 100px;
}
.article-body h2 {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 52px 0 18px;
  color: var(--white);
}
.article-body h3 {
  font-size: 20px;
  font-weight: 700;
  margin: 36px 0 14px;
  color: var(--white);
}
.article-body p {
  font-size: 16px;
  color: var(--gray);
  line-height: 1.82;
  margin-bottom: 22px;
}
.article-body ul,
.article-body ol {
  margin: 0 0 22px 0;
  padding-left: 24px;
}
.article-body li {
  font-size: 15.5px;
  color: var(--gray);
  line-height: 1.75;
  margin-bottom: 10px;
}
.article-body strong { color: var(--white); font-weight: 600; }
.article-body a { color: var(--cyan); text-decoration: underline; text-underline-offset: 3px; }
.article-body a:hover { text-decoration: none; }
.article-img {
  width: 100%;
  border-radius: var(--r-lg);
  margin: 40px 0;
  border: 1px solid var(--border);
  display: block;
}
.article-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 48px 0;
}

/* ── BTN OUTLINE ────────────────────────────────── */
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.2);
  padding: 14px 28px;
  border-radius: 100px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  display: inline-block;
  text-decoration: none;
  transition: border-color 0.25s, color 0.25s, transform 0.25s;
}
.btn-outline:hover {
  border-color: rgba(0,212,255,0.5);
  color: var(--cyan);
  transform: translateY(-2px);
}

/* ── RESPONSIVE ─────────────────────────────────── */
/* ── SUB-PAGE FOOTER ─────────────────────────────── */
.footer-brand { display: flex; flex-direction: column; gap: 10px; }
.footer-brand .footer-tagline { font-size: 12px; color: var(--gray); font-family: var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase; }
.footer-nav { display: flex; flex-direction: column; gap: 10px; }
.footer-nav a { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--gray); text-decoration: none; transition: color 0.2s; }
.footer-nav a:hover { color: var(--cyan); }
.footer-social { display: flex; flex-direction: column; gap: 10px; align-items: flex-end; }
.footer-social a { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--gray); text-decoration: none; transition: color 0.2s; }
.footer-social a:hover { color: var(--cyan); }

@media (max-width: 768px) {
  .footer-social { align-items: flex-start; flex-direction: row; flex-wrap: wrap; gap: 16px; }
}

@media (max-width: 1024px) {
  .two-col { grid-template-columns: 1fr; gap: 48px; }
  .two-col--flip { direction: ltr; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .related-grid { grid-template-columns: 1fr 1fr; }
  .spec-table { grid-template-columns: 1fr; }
  .col-video > video { max-width: 100%; }
  .col-visual { max-width: 100%; }
  .page-section { padding: 72px 0; }
}
@media (max-width: 768px) {
  .page-title { font-size: clamp(28px, 8vw, 42px); }
  .page-subtitle { font-size: 15px; }
  .page-hero--intro { padding-top: calc(var(--nav-h) + 56px); padding-bottom: 56px; }
  .page-section { padding: 56px 0; }
  .feature-grid { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .article-body { padding: 60px 20px 80px; }
  .page-meta { gap: 16px; flex-wrap: wrap; }
  .page-meta-item { min-width: 120px; }
  .spec-table .spec-row { flex-direction: column; gap: 4px; padding: 14px 0; }
  .spec-label { font-size: 10px; }
  .spec-value { font-size: 14px; }
  .section-title { font-size: clamp(22px, 6vw, 36px) !important; }
  .col-content { padding: 0; }
  .col-video > video { max-width: 100%; }
  .col-visual { max-width: 100%; }
  .page-back { margin-bottom: 20px; }
}
@media (max-width: 540px) {
  .container { padding: 0 20px; }
  .page-section { padding: 48px 0; }
  .related-grid { grid-template-columns: 1fr; gap: 16px; }
  .feature-grid { gap: 12px; }
  .feature-card { padding: 24px 20px; }
  .page-hero-content { padding: 0 20px; }
  .two-col { gap: 32px; }
}