@font-face { font-family:"Redaction 50"; src:url("/fonts/Redaction50-Regular.woff2") format("woff2"); font-weight:400; font-style:normal; font-display:swap; }
@font-face { font-family:"Redaction 50"; src:url("/fonts/Redaction50-Bold.woff2") format("woff2"); font-weight:700; font-style:normal; font-display:swap; }
@font-face { font-family:"Redaction 50"; src:url("/fonts/Redaction50-Italic.woff2") format("woff2"); font-weight:400; font-style:italic; font-display:swap; }

:root {
  --bg:#f3f0e7; --surface:#ebe7dc; --text:#1e1e1e; --muted:#5f5a54; --border:#d4d0c6;
  --panel:#2a2529; --panel-text:#f3f0e7; --panel-muted:#cfc6bc; --panel-border:#51484e;
  --panel-shadow:0 20px 42px -24px rgba(31,22,24,.48),0 8px 16px -12px rgba(31,22,24,.36);
  --inset:#383136; --input-bg:#393238; --input-text:#fffaf2; --input-border:#70656a;
  --action-bg:#f3e3c5; --action-text:#292329; --danger:#c94b4b; --danger-text:#210808;
  --success:#1f8a6a; --warn:#a87b1e; --accent:#1e1e1e; --accent-text:#f3f0e7;
  --scroll-track:#322c30; --scroll-thumb:#6d6368; --scroll-thumb-hover:#8a7f84;
}
html[data-theme="dark"] {
  --bg:#2a2529; --surface:#242023; --text:#f3f0e7; --muted:#b4aca5; --border:#1e1a1e;
  --panel:#f3f0e7; --panel-text:#2a2529; --panel-muted:#5a534f; --panel-border:#d8d0c6;
  --panel-shadow:0 22px 46px -24px rgba(0,0,0,.64),0 8px 18px -12px rgba(0,0,0,.54);
  --inset:#e6ded2; --input-bg:#fffaf2; --input-text:#2a2529; --input-border:#b9afa6;
  --action-bg:#2a2529; --action-text:#f3f0e7; --danger:#e45757; --danger-text:#2a0c0c;
  --success:#1f8a6a; --warn:#a87b1e; --accent:#f3f0e7; --accent-text:#2a2529;
  --scroll-track:#ddd5c9; --scroll-thumb:#9a9086; --scroll-thumb-hover:#7d746b;
}

* { box-sizing:border-box; font-family:"Redaction 50", Georgia, serif; }
html {
  scroll-behavior:smooth;
  scrollbar-width:thin;
  scrollbar-color:var(--scroll-thumb) var(--scroll-track);
}
html::-webkit-scrollbar { width:12px; height:12px; }
html::-webkit-scrollbar-track { background:var(--scroll-track); }
html::-webkit-scrollbar-thumb {
  background:var(--scroll-thumb);
  border-radius:999px;
  border:3px solid var(--scroll-track);
}
html::-webkit-scrollbar-thumb:hover { background:var(--scroll-thumb-hover); }
body { margin:0; background:var(--bg); color:var(--text); line-height:1.5; }

.site-header { max-width:1280px; min-height:76px; margin:0 auto; padding:16px 24px; display:flex; align-items:center; gap:24px; }
.brand { display:inline-flex; align-items:center; gap:10px; color:var(--text); text-decoration:none; font-size:1.25rem; font-weight:700; }
.brand em { font-style:italic; }
.brand-mark { width:52px; height:52px; margin:-5px; border-radius:10px; object-fit:cover; }
.brand-mark-dark { display:none; }
html[data-theme="dark"] .brand-mark-light { display:none; }
html[data-theme="dark"] .brand-mark-dark { display:block; }

main { max-width:1280px; margin:0 auto; padding:24px 24px 64px; }
.intro { margin:8px 0 28px; padding-bottom:24px; border-bottom:1px solid var(--border); }
.intro h1 { margin:8px 0 10px; font-size:clamp(1.7rem,4.8vw,3.1rem); line-height:1.05; letter-spacing:-.04em; }
.section-tag { display:block; margin-bottom:10px; font-size:.72rem; font-weight:700; letter-spacing:.13em; text-transform:uppercase; color:var(--panel-muted); }
h1,h2,h3 { margin-top:0; }

.workspace { display:grid; grid-template-columns:minmax(0,1.65fr) minmax(320px,.95fr); gap:20px; align-items:stretch; }
.card-flow { min-width:0; display:flex; flex-direction:column; gap:14px; }

.panel {
  background:var(--panel);
  color:var(--panel-text);
  border:1px solid var(--panel-border);
  border-radius:18px;
  box-shadow:var(--panel-shadow);
}

.card-flow .card {
  min-width:0;
  height:560px;
  overflow-y:auto;
  overflow-wrap:anywhere;
  padding:22px;
  scrollbar-width:thin;
  scrollbar-color:var(--scroll-thumb) var(--scroll-track);
}
.card h2 { margin:0 0 14px; line-height:1.2; font-size:1.5rem; }
.card > .primary, .card > .danger { margin-top:10px; }

.chat-panel {
  min-width:0;
  height:634px;
  display:flex;
  flex-direction:column;
  overflow:hidden;
}
.chat-panel .muted { color:var(--panel-muted); }
.chat-header { padding:20px 20px 14px; border-bottom:1px solid var(--panel-border); }
.chat-header h2 { margin:0 0 4px; font-size:1.3rem; line-height:1.2; }
.chat-header p { margin:0; font-size:.88rem; }

.chat-messages {
  flex:1;
  min-height:0;
  overflow-y:auto;
  padding:16px;
  display:flex;
  flex-direction:column;
  gap:10px;
  background:color-mix(in srgb, var(--inset) 40%, transparent);
  scrollbar-width:thin;
  scrollbar-color:var(--scroll-thumb) var(--scroll-track);
}

.card-flow .card::-webkit-scrollbar,
.chat-messages::-webkit-scrollbar,
pre::-webkit-scrollbar { width:10px; height:10px; }
.card-flow .card::-webkit-scrollbar-track,
.chat-messages::-webkit-scrollbar-track,
pre::-webkit-scrollbar-track {
  background:var(--scroll-track);
  border-radius:999px;
  margin:6px 0;
}
.card-flow .card::-webkit-scrollbar-thumb,
.chat-messages::-webkit-scrollbar-thumb,
pre::-webkit-scrollbar-thumb {
  background:var(--scroll-thumb);
  border-radius:999px;
  border:2px solid var(--scroll-track);
}
.card-flow .card::-webkit-scrollbar-thumb:hover,
.chat-messages::-webkit-scrollbar-thumb:hover,
pre::-webkit-scrollbar-thumb:hover { background:var(--scroll-thumb-hover); }

.chat-message {
  max-width:94%;
  padding:11px 13px;
  border-radius:12px;
  background:var(--inset);
  color:var(--panel-text);
  border:1px solid var(--panel-border);
  white-space:pre-wrap;
  overflow-wrap:anywhere;
  font-size:.9rem;
}
.chat-message.user { align-self:flex-end; background:var(--action-bg); color:var(--action-text); border-color:transparent; }
.chat-message.assistant { align-self:flex-start; }
.chat-message.think {
  opacity:.82;
  font-size:.8rem;
  border-style:dashed;
  color:var(--panel-muted);
  animation:agentPulse 1.1s ease-in-out infinite alternate;
}
.chat-message.typing::after { content:""; animation:agentDots 1.2s steps(4,end) infinite; }
@keyframes agentPulse { from { opacity:.55; } to { opacity:1; } }
@keyframes agentDots { 0%,20% { content:""; } 40% { content:"."; } 60% { content:".."; } 80%,100% { content:"..."; } }

.chat-prompts { display:flex; flex-wrap:wrap; gap:8px; padding:12px 16px; border-top:1px solid var(--panel-border); }
.chat-prompts button {
  padding:8px 12px;
  border:1px solid var(--panel-border);
  background:var(--inset);
  color:var(--panel-text);
  font-size:.78rem;
  font-weight:600;
  border-radius:999px;
}
.chat-form { display:flex; gap:8px; padding:14px 16px 16px; border-top:1px solid var(--panel-border); }
.chat-form input { min-width:0; flex:1; margin:0; }
.chat-form button { flex:none; }

.sr-only { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0; }
.metric {
  display:inline-block; margin:4px 0 12px; padding:8px 12px; border:1px solid var(--panel-border);
  border-radius:10px; font-size:1.35rem; font-weight:700; background:var(--inset);
}
.muted { color:var(--muted); font-size:.9rem; }
.card .muted, .card label { color:var(--panel-muted); }

button {
  appearance:none;
  -webkit-appearance:none;
  border:1px solid transparent;
  border-radius:10px;
  padding:11px 14px;
  cursor:pointer;
  font:inherit;
  font-weight:700;
  line-height:1.2;
  background:var(--inset);
  color:var(--panel-text);
  transition:filter .15s ease, transform .15s ease, background .15s ease, border-color .15s ease;
}
button:not(.theme-toggle):not(:disabled):hover { filter:brightness(1.06); transform:translateY(-1px); }
button:not(.theme-toggle):active { transform:translateY(0); }
button:disabled { opacity:.55; cursor:not-allowed; transform:none; }
button:focus-visible, a:focus-visible, input:focus-visible { outline:2px solid var(--success); outline-offset:3px; }

.primary { background:var(--action-bg); color:var(--action-text); border-color:transparent; }
.danger { background:var(--danger); color:var(--danger-text); border-color:transparent; }
.ok { background:var(--success); color:#04120b; }
.ghost { background:transparent; color:var(--panel-text); border:1px solid var(--panel-border); }

label { display:block; margin:0 0 6px; font-size:.86rem; }
input, select {
  appearance:none;
  -webkit-appearance:none;
  width:100%;
  padding:11px 12px;
  border-radius:10px;
  border:1px solid var(--input-border);
  background:var(--input-bg);
  color:var(--input-text);
  margin:0 0 14px;
  font:inherit;
  font-size:.95rem;
  caret-color:var(--input-text);
}
input::placeholder { color:color-mix(in srgb, var(--input-text) 45%, transparent); }

.site-nav { display:flex; align-items:center; justify-content:center; gap:4px; flex:1; min-width:0; }
.site-nav a { color:var(--text); text-decoration:none; font-size:.88rem; padding:8px 10px; border-radius:8px; white-space:nowrap; }
.site-nav a:hover, .site-nav a:focus-visible, .site-nav a[aria-current="step"] {
  background:var(--surface); text-decoration:underline; text-underline-offset:3px;
}

.flow-controls { display:flex; align-items:center; justify-content:space-between; gap:16px; }
.flow-controls button {
  min-width:110px;
  background:var(--surface);
  color:var(--text);
  border:1px solid var(--border);
}
.flow-controls button:last-child { background:var(--accent); color:var(--accent-text); border-color:transparent; }
.flow-controls button:disabled { cursor:not-allowed; opacity:.45; }
.flow-counter { color:var(--muted); font-size:.9rem; text-align:center; }

.theme-toggle {
  position:relative; z-index:1000; width:36px; height:36px; margin:0; padding:0;
  border:1px solid var(--border); border-radius:50%; display:grid; place-items:center;
  background:var(--panel); color:var(--panel-text); box-shadow:0 2px 8px rgba(0,0,0,.12);
  cursor:pointer; transition:transform .15s ease, background .3s ease, color .3s ease; flex-shrink:0;
}
.theme-toggle:hover { transform:scale(1.1); }
.theme-toggle:active { transform:scale(.96); }
.theme-toggle .icon { width:16px; height:16px; }
html[data-theme="dark"] .theme-toggle .moon, html:not([data-theme="dark"]) .theme-toggle .sun { display:none; }
.theme-curtain { position:fixed; inset:0; z-index:999; pointer-events:none; background:var(--curtain-color, var(--bg)); transform:scaleY(0); transform-origin:top; }
.theme-curtain.falling { transform:scaleY(1); transition:transform 550ms cubic-bezier(.76,0,.24,1); }
.theme-curtain.rising { transform-origin:bottom; transform:scaleY(0); transition:transform 550ms cubic-bezier(.76,0,.24,1); }
.theme-toggle:focus-visible { outline:2px solid var(--text); outline-offset:3px; }

pre {
  max-height:220px; overflow:auto; white-space:pre-wrap; word-break:break-word; margin:14px 0 0; padding:14px;
  border:1px solid var(--panel-border); border-radius:10px; background:var(--inset); color:var(--panel-text);
  font:400 .8rem/1.5 ui-monospace,SFMono-Regular,monospace;
  scrollbar-width:thin; scrollbar-color:var(--scroll-thumb) var(--scroll-track);
}
.step { margin:8px 0; padding:10px 14px; border-left:4px solid var(--panel-border); border-radius:8px; background:var(--inset); color:var(--panel-text); }
.pass { border-color:var(--success); }
.fail { border-color:var(--danger); }
.story { margin:0 0 16px; color:var(--panel-muted); font-size:.92rem; }
.story strong { color:var(--panel-text); font-weight:700; }

.stat-row { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:10px; margin:0 0 18px; }
.stat { padding:12px; border:1px solid var(--panel-border); border-radius:12px; background:var(--inset); min-width:0; }
.stat b { display:block; margin-top:4px; font-size:.98rem; color:var(--panel-text); overflow-wrap:anywhere; }
.stat span { color:var(--panel-muted); font-size:.68rem; letter-spacing:.06em; text-transform:uppercase; }

.btn-row { display:flex; flex-wrap:wrap; gap:10px; margin:4px 0 2px; }
.btn-row button { margin:0; flex:1 1 140px; }

.verdict-banner {
  margin:16px 0 10px; padding:12px 14px; border-radius:10px; border:1px dashed var(--panel-border);
  font-weight:700; color:var(--panel-muted); background:color-mix(in srgb, var(--inset) 55%, transparent);
}
.verdict-banner.ok { color:var(--success); border-color:var(--success); }
.verdict-banner.bad { color:var(--danger); border-color:var(--danger); }
.verdict-banner.run { color:var(--warn); border-color:var(--warn); }
.step .adds { display:block; margin-top:4px; color:var(--panel-muted); font-size:.8rem; }
.provider-grid { display:grid; gap:8px; margin:12px 0; }
code { font-family:ui-monospace,SFMono-Regular,monospace; font-size:.86em; }

@media (prefers-reduced-motion: reduce) {
  .theme-curtain.falling, .theme-curtain.rising, button, .chat-message.think { transition:none; animation:none; }
  button:not(.theme-toggle):not(:disabled):hover { transform:none; }
}
@media (max-width:700px) { .stat-row { grid-template-columns:1fr; } }
@media (max-width:900px) {
  .workspace { grid-template-columns:1fr; }
  .chat-panel, .card-flow .card { height:auto; min-height:420px; }
}
@media (max-width:700px) {
  .site-header { gap:8px; padding:12px 16px; }
  .brand span { display:none; }
  .site-nav { justify-content:flex-start; overflow-x:auto; scrollbar-width:none; }
  .site-nav::-webkit-scrollbar { display:none; }
  .site-nav a { padding:8px 6px; font-size:.8rem; }
}
@media (max-width:600px) {
  main { padding:16px 16px 48px; }
  .card { padding:18px; }
  .btn-row button { flex:1 1 100%; }
}