/* ========== HOMEPAGE: HERO — Full viewport with background image ========== */
.home-hero {
  position: relative; overflow: hidden;
  height: 100vh;
  padding: 0;
  display: flex; align-items: stretch;
}
.home-hero .container {
  position: relative; z-index: 1;
  display: flex; flex-direction: column;
  justify-content: center;
  padding: 100px clamp(24px, 5vw, 48px) 60px;
}

/* Hero Background Image — lower ¾ of section */
.hero-bg {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(to bottom, transparent, black 30%);
  mask-image: linear-gradient(to bottom, transparent, black 30%);
}
.hero-bg img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: center 55%;
  display: block;
  opacity: 0.5;
}
[data-theme="dark"] .hero-bg {
  -webkit-mask-image: none;
  mask-image: none;
}
[data-theme="dark"] .hero-bg img {
  opacity: 0.2;
}
/* Hero — 2-column AXION-style header */
.hero-header {
  display: grid;
  grid-template-columns: 1.4fr 0.6fr;
  gap: var(--space-xl);
  align-items: end;
  margin-bottom: var(--space-md);
}
.hero-header-left h1 {
  font-family: var(--font-heading); font-size: clamp(3.2rem, 6vw, 5rem);
  line-height: 1.05; font-weight: 400; margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.hero-header-left h1 em { font-style: normal; color: inherit; }
.hero-claim {
  font-family: var(--font-heading); font-size: 1.15rem; font-weight: 400;
  color: var(--text-muted); font-style: italic; letter-spacing: 0.01em;
  margin-top: 4px;
}
.hero-header-right {
  padding-bottom: 0.25rem;
}
.hero-lead {
  font-size: 1.05rem; color: var(--text-secondary);
  line-height: 1.7; margin-bottom: var(--space-lg); max-width: 100%;
}

/* Hero Metrics — 4-column row with top-rule */
.hero-metrics {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-top: 1px solid var(--border);
  margin-top: var(--space-xl);
}
.hero-metric {
  background: transparent; border: none;
  border-radius: 0; padding: 0;
  text-align: left; cursor: default;
}
.hero-metric-val { font-family: var(--font-heading); font-size: 2.4rem; font-weight: 600; color: var(--accent); margin-bottom: 4px; line-height: 1.1; }
.hero-metric-lbl { font-size: .78rem; color: var(--text-muted); }

/* ========== HURDLES — secondary cards, subtle hover ========== */
.hurdle-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: hurdle; }
.hurdle-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-xl); padding: 32px 24px;
  transition: border-color 0.4s, background 0.4s;
  position: relative; overflow: hidden;
  box-shadow: var(--card-shadow);
}
.hurdle-card::after {
  content: counter(hurdle, decimal-leading-zero);
  counter-increment: hurdle;
  position: absolute; top: 20px; right: 20px;
  font-family: var(--font); font-size: 0.7rem;
  color: var(--text-muted); letter-spacing: 0.05em;
  opacity: 0.6;
}
.hurdle-card:hover {
  border-color: var(--accent-border-hover);
  background: var(--bg-card-hover);
}
.hurdle-card h3 { font-size: .95rem; font-weight: 600; margin-bottom: 8px; display: flex; align-items: center; gap: 8px; }
.hurdle-card .card-icon { margin-bottom: 0; }
.hurdle-card p { font-size: .85rem; color: var(--text-muted); line-height: 1.6; }

/* ========== APPROACH — editorial dividers, no card boxes ========== */
.approach-steps {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--border);
}
.approach-step {
  position: relative; padding: 48px 40px 48px 0;
  border-right: 1px solid var(--border);
}
.approach-step:last-child { border-right: none; }
.approach-step:not(:first-child) { padding-left: 40px; }
.approach-step .num {
  font-family: var(--font-heading); font-size: 2.8rem;
  color: var(--text-primary); font-weight: 400;
  margin-bottom: 16px; display: block;
}
.approach-step h3 { font-size: .95rem; font-weight: 600; margin-bottom: 8px; }
.approach-step p { font-size: .85rem; color: var(--text-muted); line-height: 1.6; }

/* ========== TABS — Use Cases ========== */
.tab-bar {
  display: flex; gap: 4px;
  overflow-x: auto; padding-bottom: 4px;
  -webkit-overflow-scrolling: touch; scrollbar-width: none;
}
.tab-bar::-webkit-scrollbar { display: none; }
.tab .trail1-icon { margin-right: 6px; }
.tab {
  padding: 12px 24px; border-radius: var(--radius-pill); font-size: .88rem;
  font-weight: 500; color: var(--text-muted); cursor: pointer;
  transition: color 0.3s, background 0.3s;
  background: transparent; border: 1px solid transparent; white-space: nowrap;
}
.tab:hover { color: var(--text-primary); background: var(--overlay-subtle); }
.tab.active { background: var(--accent); color: var(--btn-primary-text); font-weight: 600; }
.tab.active .trail1-icon { color: var(--btn-primary-text); }
.usecase-panel { display: none; margin-top: var(--space-lg); }
.usecase-panel.active { display: block; }
.usecase-panel h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 12px; }
.usecase-panel .problem { color: var(--text-secondary); margin-bottom: 20px; font-size: .95rem; line-height: 1.7; }
.usecase-panel .solutions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.sol-item {
  display: flex; gap: 10px; align-items: flex-start;
  padding: 14px 16px; background: var(--accent-bg-faint);
  border-radius: var(--radius-md); border: 1px solid var(--accent-bg-subtle);
}
.sol-item .arrow { color: var(--accent); flex-shrink: 0; font-size: .9rem; margin-top: 2px; }
.sol-item .txt { font-size: .88rem; color: var(--text-secondary); line-height: 1.5; }
.usecase-metric {
  display: flex; align-items: baseline; gap: 8px;
  margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--border);
}
.usecase-metric-val { font-family: var(--font-heading); font-size: 2rem; font-weight: 600; color: var(--accent); }
.usecase-metric-lbl { font-size: .85rem; color: var(--text-muted); }

/* ========== SERVICE CARDS — primary conversion cards, full treatment ========== */
.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.service-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-xl); padding: 36px 24px;
  transition: border-color 0.4s, transform 0.4s, box-shadow 0.4s;
  box-shadow: var(--card-shadow);
}
.service-card:hover {
  border-color: var(--accent-border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.service-card .card-icon { margin-bottom: 16px; }
.service-card .label {
  font-size: .7rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: .08em; color: var(--accent); margin-bottom: 8px;
}
.service-card h3 { font-family: var(--font-heading); font-size: 1.2rem; font-weight: 400; margin-bottom: 10px; }
.service-card p { font-size: .85rem; color: var(--text-muted); line-height: 1.6; margin-bottom: 16px; }
.service-card .format {
  font-size: .78rem; color: var(--text-secondary);
  padding: 8px 14px; background: var(--overlay-subtle);
  border-radius: var(--radius-sm); display: inline-block;
}

/* Service Card Image (AXION pattern) */
.service-card-img {
  height: 200px; overflow: hidden;
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  margin: -36px -24px 24px -24px;
}
.service-card-img img {
  width: 100%; height: 100%;
  object-fit: cover; transition: transform 0.4s;
}
.service-card:hover .service-card-img img { transform: scale(1.03); }

/* ========== PRIVACY TEASER — tertiary trust signals ========== */
.privacy-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.privacy-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-xl); padding: 32px 24px;
  transition: border-color 0.4s;
  box-shadow: var(--card-shadow);
}
.privacy-card:hover { border-color: var(--accent-border-subtle); }
.privacy-card h3 { font-size: .95rem; font-weight: 600; margin-bottom: 8px; display: flex; align-items: center; gap: 8px; }
.privacy-card p { font-size: .85rem; color: var(--text-muted); line-height: 1.6; }

/* ========== TECH TEASER — vertical reference list ========== */
.tech-cats {
  display: flex; flex-direction: column; gap: 0;
  border-top: 1px solid var(--border);
}
.tech-cat {
  display: flex; align-items: baseline; gap: 24px;
  padding: 24px 0; border-bottom: 1px solid var(--border);
  border-radius: 0; background: transparent; text-align: left;
  transition: padding-left 0.3s;
}
.tech-cat:hover { padding-left: 12px; }
.tech-cat h3 {
  font-size: .9rem; font-weight: 600; margin-bottom: 0;
  display: flex; align-items: center; gap: 6px;
  min-width: 200px; flex-shrink: 0;
}
.tech-cat p { font-size: .85rem; color: var(--text-muted); line-height: 1.5; }

/* ========== ABOUT TEASER ========== */
.about-teaser {
  display: grid; grid-template-columns: 1.2fr .8fr;
  gap: var(--space-xl); align-items: start;
}
.about-text p { color: var(--text-secondary); font-size: 1.02rem; line-height: 1.8; margin-bottom: 16px; }

/* About Stats — left-border data display */
.about-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.about-stat {
  background: transparent; border: none;
  border-left: 2px solid var(--border);
  border-radius: 0; padding: 12px 20px;
  text-align: left; cursor: default;
}
.about-stat-val { font-family: var(--font-heading); font-size: 2rem; font-weight: 400; color: var(--text-primary); margin-bottom: 4px; }
.about-stat-lbl { font-size: .8rem; color: var(--text-muted); }

/* ========== HERO IMAGE (legacy placeholder) ========== */
.hero-image-placeholder {
  width: 100%;
  height: 400px;
  background: var(--bg-secondary);
  border: 2px dashed var(--border);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
  .hero-header { grid-template-columns: 1fr; gap: var(--space-lg); }
  .hero-metrics { grid-template-columns: repeat(4, 1fr); }
  .hurdle-grid, .service-grid { grid-template-columns: repeat(2, 1fr); }
  .approach-steps { grid-template-columns: repeat(2, 1fr); }
  .approach-step { border-right: none; border-bottom: 1px solid var(--border); padding: 32px 0; }
  .approach-step:not(:first-child) { padding-left: 0; }
  .approach-step:last-child { border-bottom: none; }
  .about-teaser { grid-template-columns: 1fr; }
  .tech-cat h3 { min-width: auto; }
}

@media (max-width: 768px) {
  .home-hero { min-height: 100svh; height: auto; }
  .home-hero .container { justify-content: flex-start; padding-top: 120px; padding-bottom: 40px; }
  .hero-header-left h1 { font-size: clamp(2rem, 8vw, 3rem); }
  .hero-bg { height: 55vh; }
  .hero-metrics { grid-template-columns: 1fr 1fr; }
  .hurdle-grid, .service-grid, .privacy-grid { grid-template-columns: 1fr 1fr; }
  .usecase-panel .solutions { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: 1fr 1fr; }
  .tab-bar { gap: 2px; }
  .tab { padding: 10px 16px; font-size: .82rem; }
}

@media (max-width: 480px) {
  .home-hero .container { padding-top: 100px; padding-bottom: 32px; }
  .hero-header-left h1 { font-size: clamp(1.8rem, 7vw, 2.4rem); }
  .hero-lead { font-size: 0.92rem; }
  .hero-metrics, .hurdle-grid, .service-grid, .privacy-grid { grid-template-columns: 1fr; }
  .approach-steps { grid-template-columns: 1fr; }
}

/* ── Readiness Check Promo ── */
.readiness-promo {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: var(--space-xl);
  align-items: center;
}
.readiness-promo-content .section-label { margin-bottom: 12px; }
.readiness-promo-content .section-title { margin-bottom: 16px; }
.readiness-promo-content .section-subtitle { max-width: none; margin-bottom: 20px; }
.readiness-promo-meta {
  display: flex;
  gap: 24px;
  margin-bottom: 28px;
}
.readiness-promo-meta span {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.readiness-promo-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  max-height: 220px;
  overflow: hidden;
}
.readiness-promo-visual svg {
  width: 200px;
  height: 200px;
  opacity: 0.7;
}
@media (max-width: 768px) {
  .readiness-promo { grid-template-columns: 1fr; }
  .readiness-promo-visual { display: none; }
}