.hero {
  position: relative;
  min-height: clamp(520px, 85vh, 900px);
  padding-top: clamp(96px, 16vw, 154px);
  padding-bottom: 48px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--black);
  border-bottom: 1px solid var(--border);
}

.hero-inner {
  position: relative;
  z-index: 2;
  padding: 48px 0 0;
}

.hero-line {
  display: none;
}

.hero h1 {
  max-width: 820px;
  font-size: clamp(2rem, 5.5vw, 4.8rem);
  line-height: 1.12;
  letter-spacing: -0.03em;
  font-weight: 600;
}

.hero h1 em {
  font-style: normal;
  color: var(--orange);
}

.hero-text {
  max-width: 540px;
  margin-top: 24px;
  font-size: clamp(0.95rem, 2.2vw, 1.05rem);
  line-height: 1.7;
  color: var(--text-secondary);
}

.stats-grid {
  border-top: 1px solid var(--border);
  margin-top: clamp(40px, 8vw, 64px);
  padding: 28px 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 0 28px;
}

.stat-item:not(:first-child) {
  border-left: 1px solid var(--border);
}

.stat-title {
  display: flex;
  align-items: flex-end;
  min-height: 2.6rem;
  font-family: var(--sans);
  color: var(--text-primary);
  font-weight: 600;
  font-size: clamp(1.05rem, 1.6vw, 1.35rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.stat-detail {
  display: block;
  min-height: 2rem;
  max-width: 18ch;
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.62rem;
  line-height: 1.55;
  color: var(--text-secondary);
}

@media (min-width: 1280px) {
  .hero-inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(320px, 42%);
    column-gap: clamp(48px, 6vw, 120px);
    align-items: center;
    padding-top: 56px;
  }

  .hero h1,
  .hero-text,
  .hero-actions {
    grid-column: 1;
  }

  .hero h1 {
    max-width: none;
    font-size: clamp(3rem, 4.5vw, 5rem);
    line-height: 1.08;
  }

  .hero-text {
    max-width: 640px;
    font-size: 1.08rem;
  }

  .stats-grid {
    grid-column: 1 / -1;
    margin-top: 72px;
  }

  .stat-item:first-child {
    padding-left: 0;
  }

  .stat-item:last-child {
    padding-right: 0;
  }

  .stat-detail {
    max-width: 22ch;
  }

  .topographic-bg::after {
    right: 6%;
    width: min(520px, 34vw);
    height: min(520px, 34vw);
  }
}

@media (min-width: 1536px) {
  .hero {
    min-height: clamp(620px, 82vh, 920px);
  }

  .hero-text {
    max-width: 680px;
  }

  .feature-grid {
    gap: 28px;
  }

  .method-grid {
    gap: 28px;
  }
}

@media (min-width: 1920px) {
  .hero-inner {
    column-gap: clamp(64px, 7vw, 140px);
  }

  .hero h1 {
    font-size: clamp(3.4rem, 4vw, 5.2rem);
  }

  .stat-item {
    padding-inline: 36px;
  }

  .stat-item:first-child {
    padding-left: 0;
  }

  .stat-item:last-child {
    padding-right: 0;
  }
}

@media (max-width: 1024px) {
  .stat-item {
    padding: 0 20px;
  }
}

@media (max-width: 900px) {
  .hero-inner {
    padding-top: 32px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px 0;
    padding: 24px 0;
  }

  .stat-item {
    padding: 0 20px;
  }

  .stat-item:not(:first-child) {
    border-left: none;
  }

  .stat-item:nth-child(odd) {
    padding-left: 0;
  }

  .stat-item:nth-child(even) {
    border-left: 1px solid var(--border);
  }

  .stat-item:nth-child(n + 3) {
    padding-top: 24px;
    border-top: 1px solid var(--border);
  }

  .stat-item:nth-child(n + 3):nth-child(odd) {
    border-left: none;
  }
}

@media (max-width: 640px) {
  .hero {
    min-height: auto;
    padding-top: 88px;
    padding-bottom: 32px;
  }

  .hero h1 {
    font-size: clamp(1.85rem, 9vw, 2.6rem);
    line-height: 1.15;
  }

  .hero-text {
    margin-top: 18px;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: 0;
    margin-top: 32px;
  }

  .stat-item,
  .stat-item:nth-child(even),
  .stat-item:nth-child(odd) {
    padding: 16px 0;
    border-left: none;
    border-top: 1px solid var(--border);
  }

  .stat-item:first-child {
    border-top: none;
    padding-top: 0;
  }

  .stat-title {
    min-height: 0;
  }

  .stat-detail {
    min-height: 0;
    max-width: none;
  }
}

.topographic-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse at 78% 42%, var(--orange-glow) 0%, transparent 65%),
    radial-gradient(circle at 82% 48%, rgba(244, 124, 32, 0.08) 0%, transparent 55%);
}

.topographic-bg::after {
  content: "";
  position: absolute;
  right: 8%;
  top: 50%;
  transform: translateY(-50%);
  width: min(420px, 40vw);
  height: min(420px, 40vw);
  border-radius: 50%;
  border: 1px solid rgba(244, 124, 32, 0.15);
  box-shadow:
    0 0 60px rgba(244, 124, 32, 0.12),
    inset 0 0 40px rgba(244, 124, 32, 0.06);
}

@media (max-width: 768px) {
  .topographic-bg {
    background:
      radial-gradient(ellipse at 50% 18%, var(--orange-glow) 0%, transparent 58%),
      radial-gradient(circle at 50% 22%, rgba(244, 124, 32, 0.08) 0%, transparent 55%);
  }

  .topographic-bg::after {
    right: 50%;
    top: 18%;
    transform: translate(50%, -50%);
    width: min(260px, 62vw);
    height: min(260px, 62vw);
  }
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 56px;
}

.feature-grid article,
.method-grid article {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 28px;
  background: var(--surface);
}

.feature-grid span,
.method-grid span {
  font-family: var(--mono);
  color: var(--orange);
  font-size: 0.68rem;
}

.feature-grid h3,
.method-grid h3 {
  margin-top: 16px;
  font-size: 1.05rem;
}

.feature-grid p {
  margin-top: 8px;
  font-size: 0.9rem;
}

.method-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}

.method-grid ul {
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
  color: var(--text-secondary);
  font-size: 0.88rem;
}

.method-grid li {
  padding: 8px 0;
}

.method-grid li::before {
  content: "—";
  margin-right: 10px;
  color: var(--orange);
}

@media (max-width: 900px) {
  .feature-grid,
  .method-grid {
    grid-template-columns: 1fr;
    margin-top: 40px;
  }

  .feature-grid article,
  .method-grid article {
    padding: 24px;
  }
}

@media (max-width: 640px) {
  .feature-grid,
  .method-grid {
    gap: 16px;
    margin-top: 32px;
  }

  .feature-grid article,
  .method-grid article {
    padding: 20px;
  }
}