:root { color-scheme: light dark; --bg: #0b1020; --fg: #e8ecf5; --muted: #9aa4bf; --panel: #141b33; --accent: #8fb8ff; }
* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.5 system-ui, sans-serif; background: var(--bg); color: var(--fg); }
header, main { max-width: 1100px; margin: 0 auto; padding: 0 20px; }
header { padding-top: 28px; }
h1 { margin: 0 0 4px; font-size: 28px; letter-spacing: 0.02em; }
h2 { font-size: 20px; margin-top: 40px; }
h3 { font-size: 16px; color: var(--muted); margin: 24px 0 8px; }
p { color: var(--muted); }
a { color: var(--accent); }
.controls { display: flex; flex-wrap: wrap; gap: 12px 20px; align-items: end; background: var(--panel); padding: 14px 16px; border-radius: 10px; margin: 18px 0 10px; }
.controls label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
select, button, textarea { font: inherit; color: var(--fg); background: #0f1530; border: 1px solid #2a3560; border-radius: 6px; padding: 6px 10px; }
button { background: var(--accent); color: #0b1020; font-weight: 600; cursor: pointer; }
button:disabled { opacity: 0.4; cursor: default; }
details { margin: 10px 0; }
summary { cursor: pointer; color: var(--muted); }
textarea { width: 100%; font-family: ui-monospace, monospace; font-size: 13px; margin-top: 8px; }
.hint { font-size: 13px; }
.status { font-family: ui-monospace, monospace; font-size: 13px; color: var(--fg); background: var(--panel); padding: 10px 14px; border-radius: 8px; white-space: pre-wrap; }
.views { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 16px; }
figure { margin: 0; flex: 1 1 320px; }
canvas { width: 100%; height: auto; background: #000010; border-radius: 8px; }
figcaption { color: var(--muted); font-size: 13px; margin-top: 4px; }
.charts img { width: 100%; height: auto; border-radius: 8px; }
footer { margin: 40px 0 30px; font-size: 13px; }