:root {
  color-scheme: light;
  --bg: #f7f8fa;
  --ink: #181a1f;
  --muted: #626b78;
  --line: #dfe4ea;
  --panel: #ffffff;
  --red: #ff2a20;
  --red-dark: #cf1d16;
  --green: #24785a;
  --soft-blue: #e9f2f7;
  --soft-green: #eaf5ef;
  --shadow: 0 18px 48px rgba(30, 39, 52, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: "Segoe UI", "Malgun Gothic", Arial, sans-serif;
  line-height: 1.6;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 4vw, 56px);
  background: rgba(247, 248, 250, 0.9);
  border-bottom: 1px solid rgba(223, 228, 234, 0.82);
  backdrop-filter: blur(14px);
}

.brand img {
  width: clamp(140px, 18vw, 186px);
  height: auto;
}

.nav-links {
  display: flex;
  gap: clamp(14px, 3vw, 34px);
  color: var(--muted);
  font-size: 15px;
  font-weight: 700;
}

.nav-links a:hover {
  color: var(--red-dark);
}

main {
  overflow: hidden;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.86fr);
  align-items: center;
  gap: clamp(34px, 7vw, 92px);
  min-height: calc(100vh - 92px);
  padding: clamp(42px, 7vw, 92px) clamp(18px, 6vw, 82px) 48px;
}

.hero h1,
.section-heading h2,
.split-copy h2,
.contact-section h2 {
  margin: 0;
  letter-spacing: 0;
  line-height: 1.12;
}

.hero h1 {
  max-width: 760px;
  font-size: clamp(42px, 6vw, 78px);
}

.lead {
  max-width: 690px;
  margin: 24px 0 0;
  color: #343b45;
  font-size: clamp(18px, 2vw, 22px);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--red-dark);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 0 20px;
  font-weight: 900;
}

.button.primary {
  color: white;
  background: var(--red);
  box-shadow: 0 12px 28px rgba(255, 42, 32, 0.22);
}

.button.secondary {
  color: var(--ink);
  background: white;
  border-color: var(--line);
}

.hero-visual {
  position: relative;
  min-height: 420px;
}

.hero-visual img,
.split-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.hero-visual img {
  aspect-ratio: 1.18 / 1;
}

.signal-panel {
  position: absolute;
  right: clamp(14px, 4vw, 36px);
  bottom: -26px;
  width: min(300px, calc(100% - 28px));
  padding: 18px;
  color: white;
  background: #171b20;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.22);
}

.signal-panel span,
.signal-panel small {
  display: block;
  color: #b9c1cb;
}

.signal-panel strong {
  display: block;
  margin: 3px 0;
  font-size: 25px;
}

.intro,
.section,
.split-section,
.target-section,
.contact-section {
  width: min(1160px, calc(100% - 36px));
  margin: 0 auto;
}

.intro {
  padding: 44px 0 18px;
  color: #222a33;
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 800;
  line-height: 1.35;
}

.section,
.target-section {
  padding: 88px 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 28px;
}

.section-heading h2,
.split-copy h2,
.contact-section h2 {
  font-size: clamp(32px, 4vw, 50px);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.service-card,
.target-item {
  min-height: 230px;
  padding: 24px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 10px 28px rgba(30, 39, 52, 0.06);
}

.service-card:nth-child(2n) {
  background: var(--soft-blue);
}

.service-card:nth-child(3n) {
  background: var(--soft-green);
}

.service-card span {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  color: white;
  background: #20252b;
  border-radius: 50%;
  font-size: 13px;
  font-weight: 900;
}

.service-card h3,
.target-item strong {
  display: block;
  margin: 22px 0 10px;
  font-size: 22px;
  line-height: 1.28;
}

.service-card p,
.split-copy p,
.target-item span,
.contact-section p,
.site-footer {
  color: var(--muted);
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(28px, 6vw, 76px);
  padding: 74px 0;
}

.split-image {
  min-height: 460px;
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding: 14px 14px 14px 44px;
  background: white;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-weight: 800;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 17px;
  top: 20px;
  width: 12px;
  height: 7px;
  border-left: 3px solid var(--green);
  border-bottom: 3px solid var(--green);
  transform: rotate(-45deg);
}

.target-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.target-item {
  min-height: 170px;
}

.target-item strong {
  margin-top: 0;
}

.contact-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 56px;
  padding: clamp(28px, 5vw, 52px);
  color: white;
  background: #191d22;
  border-radius: 8px;
}

.contact-section h2,
.contact-section p {
  max-width: 780px;
  color: white;
}

.contact-section p {
  opacity: 0.76;
}

.site-footer {
  display: flex;
  justify-content: center;
  gap: 22px;
  padding: 28px;
  border-top: 1px solid var(--line);
  font-size: 14px;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

@media (max-width: 920px) {
  .hero,
  .split-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-visual,
  .split-image {
    min-height: 320px;
  }

  .service-grid,
  .target-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .nav-links {
    width: 100%;
    justify-content: space-between;
    font-size: 14px;
  }

  .hero {
    padding-top: 34px;
  }

  .hero-actions,
  .contact-section {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }
}