:root {
  color-scheme: dark;
  --bg: #0b0f14;
  --bg-elevated: #141b24;
  --bg-soft: #1a2430;
  --text: #e8eef5;
  --text-muted: #a2b0bf;
  --accent: #4ec9b0;
  --accent-strong: #2ab49b;
  --border: #233244;
  --shadow: 0 14px 36px rgba(0, 0, 0, 0.38);
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #eef3f8;
  --bg-elevated: #ffffff;
  --bg-soft: #f5f8fc;
  --text: #122033;
  --text-muted: #526277;
  --accent: #0b8d77;
  --accent-strong: #087160;
  --border: #cfdae8;
  --shadow: 0 10px 28px rgba(19, 41, 64, 0.12);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Manrope", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 12% 14%, rgba(78, 201, 176, 0.16), transparent 35%),
    radial-gradient(circle at 92% 10%, rgba(41, 98, 255, 0.16), transparent 30%),
    linear-gradient(175deg, var(--bg) 0%, #101925 48%, var(--bg) 100%);
  color: var(--text);
  line-height: 1.62;
}

:root[data-theme="light"] body {
  background:
    radial-gradient(circle at 12% 14%, rgba(11, 141, 119, 0.13), transparent 36%),
    radial-gradient(circle at 90% 8%, rgba(0, 121, 191, 0.12), transparent 30%),
    linear-gradient(180deg, #e9f1f9 0%, #f7fbff 100%);
}

.container {
  width: min(980px, 92vw);
  margin-inline: auto;
}

.site-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  padding-top: 4.25rem;
  padding-bottom: 2rem;
  animation: rise-in 0.7s ease both;
}

.kicker {
  margin: 0;
  color: var(--text-muted);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 700;
  font-size: 0.78rem;
}

h1,
h2 {
  font-family: "Sora", "Segoe UI", sans-serif;
}

h1 {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  line-height: 1.1;
  margin: 0.25rem 0 0.5rem;
}

.subtitle {
  margin: 0;
  color: var(--text-muted);
  font-size: 1.05rem;
}

.theme-toggle {
  border: 1px solid var(--border);
  background: linear-gradient(155deg, var(--bg-soft), var(--bg-elevated));
  color: var(--text);
  border-radius: 999px;
  height: 2.75rem;
  padding: 0 1rem;
  cursor: pointer;
  font-weight: 700;
  box-shadow: var(--shadow);
  transition: transform 140ms ease, border-color 140ms ease;
}

.theme-toggle:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
}

main {
  display: grid;
  gap: 1rem;
  padding-bottom: 2rem;
}

.card {
  background: linear-gradient(170deg, var(--bg-elevated), rgba(255, 255, 255, 0.01));
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.35rem 1.2rem;
  box-shadow: var(--shadow);
  animation: rise-in 0.7s ease both;
}

.card:nth-child(1) {
  animation-delay: 60ms;
}

.card:nth-child(2) {
  animation-delay: 120ms;
}

.card:nth-child(3) {
  animation-delay: 180ms;
}

.card:nth-child(4) {
  animation-delay: 240ms;
}

h2 {
  margin: 0 0 0.65rem;
  font-size: 1.25rem;
}

p {
  margin: 0.6rem 0;
}

.section-action {
  margin: 0.2rem 0 0.8rem;
}

.hub-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.35rem;
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--accent);
  border-radius: 8px;
  background: color-mix(in oklab, var(--accent), var(--bg-elevated) 84%);
  color: var(--text);
  text-decoration: none;
  font-weight: 800;
  letter-spacing: 0.01em;
  transition: transform 140ms ease, border-color 140ms ease, background-color 140ms ease;
}

.hub-button:hover,
.hub-button:focus-visible {
  transform: translateY(-1px);
  border-color: var(--accent-strong);
  background: color-mix(in oklab, var(--accent-strong), var(--bg-elevated) 78%);
}

.hub-button:focus-visible {
  outline: 2px solid color-mix(in oklab, var(--accent), white 14%);
  outline-offset: 2px;
}

:root[data-theme="light"] .hub-button {
  background: color-mix(in oklab, var(--accent), white 85%);
  color: #0d2d28;
}

:root[data-theme="light"] .hub-button:hover,
:root[data-theme="light"] .hub-button:focus-visible {
  background: color-mix(in oklab, var(--accent-strong), white 82%);
}

.service-list {
  list-style: none;
  padding: 0;
  margin: 0.3rem 0 0;
  display: grid;
  gap: 0.45rem;
}

.service-list li {
  border-left: 3px solid var(--accent);
  padding: 0.35rem 0.75rem;
  background: color-mix(in oklab, var(--bg-soft), transparent 20%);
  border-radius: 6px;
  transition: transform 150ms ease, border-color 150ms ease, background-color 150ms ease;
}

.service-list li:hover {
  transform: translateX(2px);
  border-left-color: var(--accent-strong);
}

.service-list a {
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
}

.service-list a:hover,
.service-list a:focus-visible {
  color: var(--accent);
}

.service-list a:focus-visible {
  outline: 2px solid color-mix(in oklab, var(--accent), white 10%);
  outline-offset: 3px;
  border-radius: 4px;
}

.site-footer {
  padding-top: 0.6rem;
  padding-bottom: 2rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(7px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 720px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
    padding-top: 3rem;
  }

  .theme-toggle {
    height: 2.55rem;
  }

  .card {
    padding: 1.15rem 1rem;
  }
}