:root { font-family: Inter, ui-sans-serif, system-ui, sans-serif; color: #172033; background: #eef2f7; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; }
header { padding: 32px clamp(20px, 5vw, 72px) 28px; background: #fff; border-bottom: 1px solid #dbe3ee; }
.eyebrow { display: block; margin-bottom: 8px; color: #4f46e5; font: 700 12px/1.2 ui-monospace, SFMono-Regular, Consolas, monospace; letter-spacing: 0.08em; text-transform: uppercase; }
h1 { margin: 0 0 8px; font-size: clamp(26px, 4vw, 40px); letter-spacing: -0.035em; }
header p { max-width: 720px; margin: 0; color: #64748b; }
.back { display: inline-block; margin-bottom: 22px; color: #475569; font-size: 13px; font-weight: 650; text-decoration: none; }
.back:hover { color: #4338ca; }
.landing { max-width: 1120px; margin: 0 auto; padding: 28px clamp(16px, 4vw, 48px) 60px; }
.example-group + .example-group { margin-top: 44px; }
.example-group-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid #dbe3ee; }
.example-group-heading h2 { margin: 0; color: #172033; font-size: 22px; letter-spacing: -0.025em; }
.example-group-heading h2 span { color: #64748b; font-size: 14px; font-weight: 650; letter-spacing: 0; }
.example-group-heading p { margin: 0; color: #64748b; font-size: 13px; }
.example-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.example-card { display: grid; gap: 9px; min-height: 180px; padding: 24px; color: inherit; background: #fff; border: 1px solid #dbe3ee; border-radius: 16px; box-shadow: 0 10px 32px rgb(15 23 42 / 7%); text-decoration: none; transition: transform 140ms ease, border-color 140ms ease; }
.example-card:hover { transform: translateY(-2px); border-color: #818cf8; }
.example-card .kind { color: #4f46e5; font: 650 12px ui-monospace, SFMono-Regular, Consolas, monospace; }
.example-card strong { align-self: end; font-size: 20px; }
.example-card > span:last-child { color: #64748b; font-size: 13px; line-height: 1.55; }
.diagram-layout { display: grid; gap: 0; max-width: 1520px; margin: 24px auto 60px; padding: 0 clamp(14px, 3vw, 36px); }
.canvas { min-height: 300px; max-height: 760px; overflow: auto; padding: 26px; background-color: #f8fafc; background-image: radial-gradient(#cbd5e1 0.65px, transparent 0.65px); background-size: 18px 18px; border: 1px solid #dbe3ee; border-radius: 16px 16px 0 0; box-shadow: 0 10px 32px rgb(15 23 42 / 7%); }
.canvas svg { min-width: 0; border-radius: 10px; box-shadow: 0 5px 20px rgb(15 23 42 / 8%); }
.error { margin: 14px 0 0; padding: 14px 18px; color: #b91c1c; background: #fef2f2; border: 1px solid #fecaca; border-radius: 10px; }
.extension-notes { display: flex; flex-wrap: wrap; gap: 8px; padding: 0 0 12px; }
.extension-notes span { padding: 7px 10px; color: #475569; background: #fff; border: 1px solid #dbe3ee; border-radius: 999px; font-size: 12px; }
.extension-notes strong { color: #0f766e; }
.example-toolbar { display: flex; flex-wrap: wrap; gap: 8px; padding: 12px; background: #fff; border: 1px solid #dbe3ee; border-bottom: 0; border-radius: 16px 16px 0 0; }
.example-toolbar + .canvas { border-radius: 0; }
.example-toolbar button { padding: 7px 11px; color: #334155; background: #fff; border: 1px solid #cbd5e1; border-radius: 8px; font: 650 12px/1.4 inherit; cursor: pointer; }
.example-toolbar button:hover { color: #4338ca; border-color: #818cf8; }
.example-toolbar button:disabled { cursor: not-allowed; opacity: 0.5; }
.example-toolbar button[aria-pressed="true"] { color: #fff; background: #4f46e5; border-color: #4f46e5; }
.viewport-controls { align-items: center; }
.viewport-controls .zoom-readout { min-width: 58px; font-variant-numeric: tabular-nums; }
.pattern-picker button[aria-pressed="true"] { color: #fff; background: #4f46e5; border-color: #4f46e5; }
@media (max-width: 720px) { .example-group-heading { display: block; } .example-group-heading p { margin-top: 6px; } .example-list { grid-template-columns: 1fr; } .canvas { padding: 14px; } }