:root {
  color-scheme: light;
  --background: #f6f8fb;
  --surface: #ffffff;
  --surface-strong: #eef4ff;
  --text: #172033;
  --muted: #667085;
  --line: #d8e0ee;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --success: #16a34a;
  --danger: #dc2626;
  --docs: #7c3aed;
  --shadow: 0 18px 42px rgba(23, 32, 51, 0.12);
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  line-height: 1.6;
}

a {
  color: inherit;
}

.page {
  width: min(1040px, calc(100% - 32px));
  margin: 0 auto;
  padding: 40px 0 56px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 34px;
}

.brand {
  font-size: 1rem;
  font-weight: 900;
}

.home-link {
  color: var(--primary);
  font-weight: 800;
  text-decoration: none;
}

.hero {
  margin-bottom: 32px;
}

.hero h1 {
  max-width: 780px;
  margin: 0 0 12px;
  font-size: clamp(2.2rem, 5vw, 4rem);
  line-height: 1.05;
  letter-spacing: 0;
}

.hero p {
  max-width: 720px;
  margin: 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.os-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.os-button {
  min-height: 150px;
  padding: 22px;
  border-radius: 12px;
  background: var(--surface);
  box-shadow: var(--shadow);
  text-decoration: none;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid var(--line);
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease;
}

.os-button:hover {
  transform: translateY(-4px);
  border-color: rgba(37, 99, 235, 0.45);
  box-shadow: 0 24px 48px rgba(23, 32, 51, 0.16);
}

.os-button strong {
  font-size: 1.55rem;
}

.os-button span {
  color: var(--muted);
  font-weight: 700;
}

.content {
  display: grid;
  gap: 18px;
}

.panel {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: 0 12px 30px rgba(23, 32, 51, 0.08);
}

.panel summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
  list-style: none;
}

.panel summary::-webkit-details-marker {
  display: none;
}

.panel summary::after {
  content: "+";
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 999px;
  background: var(--surface-strong);
  color: var(--primary);
  font-size: 1.4rem;
  font-weight: 900;
  line-height: 1;
}

.panel[open] summary {
  margin-bottom: 14px;
}

.panel[open] summary::after {
  content: "-";
}

.panel h2 {
  margin: 0;
  font-size: 1.4rem;
}

.panel h3 {
  margin: 22px 0 8px;
  font-size: 1.05rem;
}

.panel p,
.panel ol,
.panel ul {
  margin-top: 0;
}

.panel li + li {
  margin-top: 8px;
}

.command {
  display: block;
  width: 100%;
  margin: 10px 0 16px;
  padding: 14px;
  border-radius: 10px;
  overflow-x: auto;
  background: #101828;
  color: #e6edf7;
  font: 0.9rem ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.button-list {
  display: grid;
  gap: 12px;
}

.button-card {
  padding: 16px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--surface-strong);
}

.button-card strong {
  display: block;
  margin-bottom: 4px;
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
}

.model-table {
  width: 100%;
  min-width: 920px;
  border-collapse: collapse;
  background: var(--surface);
  font-size: 0.92rem;
}

.model-table th,
.model-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.model-table th {
  background: var(--surface-strong);
  color: var(--text);
  font-size: 0.82rem;
  text-transform: uppercase;
}

.model-table tbody tr:last-child td {
  border-bottom: 0;
}

.model-table code {
  white-space: nowrap;
}

.resource-badge {
  display: inline-flex;
  padding: 4px 8px;
  border-radius: 999px;
  color: #ffffff;
  font-size: 0.76rem;
  font-weight: 900;
  white-space: nowrap;
}

.resource-low {
  background: #0f766e;
}

.resource-light {
  background: #16a34a;
}

.resource-standard {
  background: #2563eb;
}

.resource-comfort {
  background: #7c3aed;
}

.resource-heavy {
  background: #ca8a04;
}

.resource-gamer {
  background: #dc2626;
}

.tag {
  display: inline-flex;
  margin-right: 8px;
  padding: 3px 8px;
  border-radius: 999px;
  color: #ffffff;
  font-size: 0.78rem;
  font-weight: 900;
}

.tag-start {
  background: var(--success);
}

.tag-stop {
  background: var(--danger);
}

.tag-access {
  background: var(--primary);
}

.tag-docs {
  background: var(--docs);
}

.note {
  padding: 14px;
  border-left: 4px solid var(--primary);
  border-radius: 8px;
  background: #eff6ff;
  color: #1e3a8a;
  font-weight: 700;
}

.sources {
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 760px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .panel {
    padding: 18px;
  }
}