/* Cascades panel — F0 minimal styles. Tokens from docs/DESIGN.md. */
:root {
  --black: #08080A;
  --blue: #1400FF;
  --ivory: #F4F1EA;
  --gray-600: #4B4B56;
  --gray-200: #3A3A44;
  --err: #C2564B;
  --bg: var(--black);
  --fg: var(--ivory);
  --muted: #A3A3AE;
  --field: #141418;
  font-family: "Space Grotesk", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: var(--ivory); --fg: var(--black); --muted: var(--gray-600);
    --field: #FFFFFF; --gray-200: #CFCAC0;
  }
}
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: var(--bg); color: var(--fg); display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
.brand { background: var(--blue); color: #FFFFFF; padding: 48px; display: flex; flex-direction: column; justify-content: space-between; }
.brand h1 { font-size: clamp(32px, 5vw, 56px); line-height: 1; margin: 0; font-weight: 600; letter-spacing: -0.02em; }
.brand p { margin: 0; opacity: .85; max-width: 32ch; }
main { padding: 48px 16px; display: flex; align-items: center; justify-content: center; }
form, .card { width: 100%; max-width: 360px; display: grid; gap: 16px; }
h2 { margin: 0 0 8px; font-size: 24px; font-weight: 600; }
label { display: grid; gap: 6px; font-size: 14px; color: var(--muted); }
input { font: inherit; color: var(--fg); background: var(--field); border: 1px solid var(--gray-200); border-radius: 6px; padding: 12px; }
input:focus { outline: 2px solid var(--blue); outline-offset: 1px; border-color: var(--blue); }
button { font: inherit; font-weight: 600; color: #FFFFFF; background: var(--blue); border: 0; border-radius: 6px; padding: 12px; cursor: pointer; }
button:focus-visible { outline: 2px solid var(--fg); outline-offset: 2px; }
.error { color: var(--err); margin: 0; font-size: 14px; }
.muted { color: var(--muted); font-size: 14px; margin: 0; }
code { font-family: "JetBrains Mono", ui-monospace, monospace; font-size: 13px; }
@media (max-width: 720px) {
  body { grid-template-columns: 1fr; }
  .brand { padding: 24px 16px; gap: 16px; }
}

/* Control panel (F1 block C). */
:root { --ok: #3E8E6A; --warn: #B8862E; --surface: #111116; }
@media (prefers-color-scheme: light) { :root:not([data-theme="dark"]) { --surface: #FBF9F4; } }
body.panel { grid-template-columns: 220px minmax(0, 1fr); align-items: stretch; }
.side { background: var(--blue); color: #FFFFFF; padding: 24px 16px; display: flex; flex-direction: column; gap: 24px; position: sticky; top: 0; height: 100vh; }
.side .logo { font-size: 28px; font-weight: 600; letter-spacing: -0.02em; margin: 0; }
.side ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; flex: 1; align-content: start; }
.side a { display: block; position: relative; overflow: hidden; color: #FFFFFF; text-decoration: none; padding: 8px 12px; border-radius: 999px; }
.side a span { display: inline-block; transition: transform .2s ease; }
.side a:hover, .side a[aria-current="page"] { background: #FFFFFF; color: var(--blue); }
.side a:hover span { animation: roll .25s ease; }
@keyframes roll { 0% { transform: translateY(0); } 49% { transform: translateY(-120%); } 50% { transform: translateY(120%); } 100% { transform: translateY(0); } }
@media (prefers-reduced-motion: reduce) { .side a:hover span { animation: none; } }
.side .who { max-width: none; display: flex; justify-content: space-between; align-items: center; gap: 8px; font-size: 14px; }
button.link { background: none; padding: 0; color: inherit; text-decoration: underline; font-weight: 400; }
main.content { display: block; padding: 32px; max-width: 1200px; }
main.content form { max-width: none; }
h1 { margin: 0 0 16px; font-size: 32px; font-weight: 600; letter-spacing: -0.01em; }
a { color: inherit; }
.block { margin: 0 0 32px; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin: 0 0 16px; }
.stats div { background: var(--surface); border: 1px solid var(--gray-200); border-radius: 8px; padding: 12px; display: grid; gap: 4px; }
.stats .num { font-size: 24px; font-weight: 600; }
.stats .label { font-size: 13px; color: var(--muted); }
table { width: 100%; border-collapse: collapse; font-size: 14px; margin: 0 0 12px; }
th { text-align: left; font-weight: 600; color: var(--muted); position: sticky; top: 0; background: var(--bg); }
th, td { padding: 8px 10px; border-bottom: 1px solid var(--gray-200); vertical-align: top; }
tbody tr:nth-child(even) { background: var(--surface); }
.pill { display: inline-block; font-size: 12px; padding: 2px 10px; border-radius: 999px; border: 1px solid currentColor; }
.pill.ok, .pill.bot { color: var(--ok); }
.pill.warn, .pill.paused { color: var(--warn); }
.pill.human { color: var(--fg); }
.pill.err, .pill.closed { color: var(--err); }
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 32px; }
.chat { list-style: none; padding: 0; margin: 0 0 16px; display: grid; gap: 8px; }
.chat li { padding: 10px 12px; border-radius: 10px; max-width: 85%; white-space: pre-wrap; background: var(--surface); border: 1px solid var(--gray-200); }
.chat li.out { justify-self: end; background: var(--blue); color: #FFFFFF; border-color: var(--blue); }
.chat .meta { display: block; font-size: 12px; opacity: .75; margin-bottom: 4px; }
.turn { border: 1px solid var(--gray-200); border-radius: 8px; padding: 12px; margin: 0 0 12px; font-size: 14px; }
.turn.focus { border-color: var(--blue); }
.timeline { list-style: none; margin: 8px 0 0; padding: 0 0 0 14px; border-left: 2px solid var(--gray-200); display: grid; gap: 8px; }
.step .kind { font-weight: 600; }
.step.tool .kind { text-decoration: underline; text-underline-offset: 3px; }
.step .io { font-size: 13px; overflow-wrap: anywhere; }
.step .io span { color: var(--muted); margin-right: 4px; }
select, textarea { font: inherit; color: var(--fg); background: var(--field); border: 1px solid var(--gray-200); border-radius: 6px; padding: 10px; }
textarea { width: 100%; resize: vertical; }
.inline { display: flex; gap: 12px; align-items: end; margin: 0 0 16px; flex-wrap: wrap; }
.send { display: grid; gap: 12px; margin: 0 0 12px; }
button.secondary { background: transparent; color: var(--fg); border: 1px solid var(--gray-200); }
.actions { display: flex; gap: 8px; }
.notice { border-left: 4px solid var(--blue); padding: 8px 12px; background: var(--surface); }
@media (max-width: 900px) {
  body.panel { grid-template-columns: 1fr; }
  .side { position: static; height: auto; }
  .split { grid-template-columns: 1fr; }
  main.content { padding: 16px; }
}
.pill.done { color: var(--ok); }
.pill.running, .pill.waiting, .pill.stopped { color: var(--warn); }
.pill.failed { color: var(--err); }
pre { white-space: pre-wrap; overflow-wrap: anywhere; background: var(--surface); border: 1px solid var(--gray-200); border-radius: 8px; padding: 12px; }