:root {
  color-scheme: dark;
  --page: #101216;
  --surface: #181b20;
  --surface-hover: #20242a;
  --text: #f3f0e9;
  --muted: #a6adb7;
  --line: #30353d;
  --accent: #e2ad62;
  --focus: #f3c978;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--page);
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  background: var(--page);
  color: var(--text);
}

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

.site-header,
.site-main,
.site-footer {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: center;
  min-height: 76px;
  border-bottom: 1px solid var(--line);
}

.brand {
  color: var(--text);
  font-size: 0.98rem;
  font-weight: 760;
  letter-spacing: 0.02em;
}

.site-main {
  display: grid;
  min-height: calc(100vh - 184px);
  align-items: center;
  padding: clamp(56px, 10vw, 132px) 0;
}

.services {
  width: 100%;
}

.section-heading {
  margin-bottom: clamp(28px, 5vw, 52px);
}

.section-label,
.playground-label,
.service-number {
  margin: 0;
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 760;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: clamp(2.45rem, 7vw, 6.25rem);
  font-weight: 720;
  letter-spacing: -0.065em;
  line-height: 0.95;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

.service-card {
  display: flex;
  min-height: 260px;
  flex-direction: column;
  align-items: flex-start;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.service-card:hover {
  border-color: var(--accent);
  background: var(--surface-hover);
  transform: translateY(-3px);
}

.service-card:focus-visible,
.playground-links a:focus-visible,
.brand:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
}

.service-card h2 {
  margin: 40px 0 0;
  font-size: clamp(1.5rem, 2.3vw, 2rem);
  letter-spacing: -0.04em;
}

.service-card p {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.7;
}

.service-action {
  display: inline-flex;
  gap: 8px;
  margin-top: auto;
  padding-top: 30px;
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 720;
}

.service-card:hover .service-action span {
  transform: translateX(3px);
}

.service-action span {
  transition: transform 160ms ease;
}

.site-footer {
  padding: 28px 0 40px;
  border-top: 1px solid var(--line);
}

.playground {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.playground-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.playground-links a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--muted);
  font-size: 0.92rem;
}

.playground-links a:hover {
  color: var(--text);
}

@media (max-width: 760px) {
  .site-header,
  .site-main,
  .site-footer {
    width: min(100% - 32px, 1120px);
  }

  .site-main {
    min-height: auto;
    padding: 70px 0;
  }

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

  .service-card {
    min-height: 220px;
  }

  .playground {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 980px) and (min-width: 761px) {
  .service-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto;
    transition-duration: 0.01ms;
  }
}