:root {
  --bg: #ede6d6; --raised: #f5f0e5; --fg: #1f261c; --muted: #655f4e; --line: #d2c7af;
  --moss: #48633a; --umber: #7a4f2e; --accent: #e0a31c; --ink-on-accent: #1f261c; --danger: #b3261e;
  --serif: Georgia, "Iowan Old Style", serif;
  --mono: ui-monospace, "SF Mono", Menlo, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11150f; --raised: #1a2017; --fg: #ebe4d2; --muted: #9c9784; --line: #2b3326;
    --moss: #9bb57e; --umber: #c2966b; --accent: #e9b440; --danger: #f2b8b5; color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { display: flex; flex-direction: column; height: 100dvh; background: var(--bg); color: var(--fg);
       font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; }
button { font: inherit; cursor: pointer; }
[hidden] { display: none !important; }
.eyebrow { font: 500 11px var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }

header { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
         padding: 12px 20px; border-bottom: 1px solid var(--line); }
header h1 { margin: 0; font: 400 24px var(--serif); letter-spacing: -.01em; }
header h1 span { color: var(--umber); font-style: italic; }
.header-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.ghost { background: none; border: 1px solid var(--line); color: var(--muted); border-radius: 999px; padding: 6px 14px; font-size: 13px; }
.ghost:hover { color: var(--fg); border-color: var(--fg); }
.ghost.danger:hover { color: var(--danger); border-color: var(--danger); }
.primary { background: var(--fg); color: var(--bg); border: 0; border-radius: 999px; padding: 10px 20px; font-weight: 500; }
.primary:hover:not(:disabled) { background: var(--accent); color: var(--ink-on-accent); }
.primary:disabled { opacity: .45; cursor: default; }
a.primary { text-decoration: none; display: inline-block; }

main { flex: 1; min-height: 0; display: grid; grid-template-columns: minmax(0, 1fr) 420px; }
@media (max-width: 900px) {
  body { height: auto; }
  main { grid-template-columns: 1fr; }
  #chat { height: 72dvh; }
  #panel { border-left: 0; border-top: 1px solid var(--line); }
}

/* Chat */
#chat { display: flex; flex-direction: column; min-height: 0; }
#log { flex: 1; overflow-y: auto; padding: 24px 20px; display: flex; flex-direction: column; gap: 14px; }
.msg { max-width: 680px; padding: 12px 16px; border-radius: 16px; overflow-wrap: anywhere; }
.msg p { margin: 0 0 .6em; } .msg p:last-child { margin-bottom: 0; }
.msg ul, .msg ol { margin: .2em 0 .6em; padding-left: 1.3em; }
.user { align-self: flex-end; background: var(--fg); color: var(--bg); border-bottom-right-radius: 4px; }
.assistant { align-self: flex-start; background: var(--raised); border: 1px solid var(--line); border-bottom-left-radius: 4px; }
.tool { align-self: flex-start; font: 12px var(--mono); color: var(--moss); padding: 2px 4px; }
.tool::before { content: "● "; }
.err { align-self: flex-start; color: var(--danger); font-size: 14px; }
.typing::after { content: "▍"; animation: blink 1s steps(2) infinite; color: var(--muted); }
@keyframes blink { 50% { opacity: 0; } }

.welcome { margin: auto; max-width: 560px; text-align: center; padding: 20px; }
.welcome h2 { font: 400 clamp(32px, 5vw, 44px)/1.05 var(--serif); margin: 8px 0 12px; letter-spacing: -.02em; }
.welcome h2 em { color: var(--umber); }
.welcome p { color: var(--muted); margin: 0 0 20px; }
.examples { display: flex; flex-direction: column; gap: 8px; }
.examples button { text-align: left; background: var(--raised); border: 1px solid var(--line); color: var(--fg);
                   padding: 12px 14px; border-radius: 12px; }
.examples button:hover { border-color: var(--moss); }

#composer { display: flex; gap: 8px; padding: 14px 20px 18px; border-top: 1px solid var(--line); }
textarea, input[type="password"], input[type="text"] {
  font: inherit; color: var(--fg); background: var(--raised); border: 1px solid var(--line); border-radius: 12px; padding: 10px 14px;
}
#input { flex: 1; resize: none; min-height: 46px; max-height: 160px; border-radius: 14px; }
textarea:focus, input:focus { outline: 2px solid var(--moss); outline-offset: -1px; }

/* Plan panel */
#panel { border-left: 1px solid var(--line); overflow-y: auto; padding: 22px 20px 32px; }
#panel h2 { font: 400 28px var(--serif); margin: 6px 0 10px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0 16px; }
.chip { font: 12px var(--mono); border: 1px solid var(--line); border-radius: 999px; padding: 3px 10px; color: var(--muted); }
.chip b { color: var(--fg); font-weight: 500; }
.summary, .empty { color: var(--muted); font-size: 15px; margin: 0 0 16px; }
.approve { border: 1px dashed var(--moss); border-radius: 16px; padding: 14px 16px; margin: 0 0 16px; }
.approve p { margin: 0 0 10px; font-size: 14px; color: var(--muted); }

.stage { border: 1px solid var(--line); border-radius: 16px; padding: 16px; margin-bottom: 12px; background: var(--raised); }
.stage.built { border-color: var(--moss); }
.stage.building { border-color: var(--accent); }
.stage-top { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.stage h3 { margin: 0; font: 400 22px var(--serif); }
.kind { font: 11px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--umber); white-space: nowrap; }
.meta { font: 12px var(--mono); color: var(--muted); margin: 4px 0 8px; }
.unlocks { margin: 0 0 12px; font-size: 15px; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.actions .primary { padding: 8px 16px; font-size: 14px; }
.linkish { background: none; border: 0; padding: 0; font-size: 14px; color: var(--moss); text-decoration: underline; text-underline-offset: 3px; }
.status { font: 12px var(--mono); color: var(--moss); }
.status.failed { color: var(--danger); }
details { margin-top: 10px; font-size: 13px; color: var(--muted); }
summary { cursor: pointer; }

.job { border: 1px solid var(--line); border-radius: 16px; padding: 14px 16px; margin: 0 0 16px; }
.job-top { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.job-log { margin: 10px 0 0; padding: 10px 12px; max-height: 200px; overflow-y: auto; background: var(--raised);
           border-radius: 10px; font: 12px/1.6 var(--mono); color: var(--muted); white-space: pre-wrap; }

footer { padding: 18px 0 0; font-size: 12px; color: var(--muted); }
footer a { color: inherit; }

/* Dialogs */
dialog { border: 1px solid var(--line); border-radius: 18px; background: var(--bg); color: var(--fg); padding: 22px;
         width: min(560px, calc(100vw - 32px)); }
dialog::backdrop { background: rgb(0 0 0 / .45); }
dialog h2 { margin: 0 0 6px; font: 400 26px var(--serif); }
dialog label { display: block; margin: 14px 0 4px; font-size: 14px; }
dialog input[type="password"], dialog input[type="text"] { width: 100%; font-family: var(--mono); font-size: 14px; }
.help { font-size: 13px; color: var(--muted); margin: 6px 0 0; }
.check { display: flex; gap: 8px; align-items: flex-start; margin-top: 14px; font-size: 14px; }
.check input { margin-top: 4px; }
.security { margin: 16px 0 0; padding: 12px 14px; border-radius: 12px; background: var(--raised); font-size: 13px; color: var(--muted); }
.security ul { margin: 6px 0 0; padding-left: 1.2em; }
.dialog-actions { display: flex; justify-content: space-between; gap: 8px; margin-top: 18px; flex-wrap: wrap; }
#preview-dialog { width: min(1100px, calc(100vw - 32px)); height: min(860px, calc(100dvh - 32px)); padding: 0; }
#preview-dialog[open] { display: flex; flex-direction: column; }
.preview-top { display: flex; justify-content: space-between; align-items: center; padding: 12px 18px; border-bottom: 1px solid var(--line); }
#preview-frame { flex: 1; width: 100%; border: 0; background: #d2c7af; }