:root {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color-scheme: light dark;
  --bg: #f4f4f5;
  --surface: #ffffff;
  --surface-subtle: #fafafa;
  --text: #18181b;
  --muted: #71717a;
  --border: #e4e4e7;
  --border-strong: #d4d4d8;
  --soft: #f1f1f3;
  --code: #111113;
  --code-text: #f7f7f8;
  --shadow: 0 8px 28px rgba(24, 24, 27, .055);
}

* { box-sizing: border-box; }
html, body { min-height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  padding-bottom: env(safe-area-inset-bottom);
}
a { color: inherit; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; }
select, button, textarea, pre, input { font: inherit; }
[hidden] { display: none !important; }

.studio {
  width: min(1460px, 100%);
  margin: 0 auto;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  padding: 10px max(16px, env(safe-area-inset-right)) 16px max(16px, env(safe-area-inset-left));
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 10px;
}
.brand { display: flex; align-items: center; gap: 11px; min-width: 0; }
.brand-mark {
  width: 36px;
  height: 36px;
  display: block;
  flex: 0 0 auto;
  object-fit: contain;
  filter: drop-shadow(0 5px 12px color-mix(in srgb, #1d4ed8 18%, transparent));
}
@media(max-width:760px){.brand-mark{width:32px;height:32px}}
h1 { margin: 0; font-size: 18px; letter-spacing: -.5px; line-height: 1.05; }
h1 span {
  display: inline-block;
  margin-left: 5px;
  padding: 3px 6px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  color: var(--muted);
  font-size: 10px;
  letter-spacing: .04em;
  vertical-align: middle;
}
.brand p { display: none; }

.toolbar,
.projectbar {
  display: flex;
  align-items: center;
  gap: 7px;
  flex-wrap: wrap;
}
.compact-field {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
}
.compact-field > span { display: none; }

select, input {
  min-height: 36px;
  padding: 7px 9px;
  border: 1px solid var(--border-strong);
  border-radius: 9px;
  background: var(--surface);
  color: var(--text);
  outline: none;
}
select:focus-visible, input:focus-visible, textarea:focus-visible { outline: 2px solid color-mix(in srgb, var(--text) 78%, transparent); outline-offset: 2px; }
button {
  min-height: 36px;
  padding: 8px 13px;
  border: 0;
  border-radius: 9px;
  background: var(--text);
  color: var(--surface);
  font-weight: 750;
  cursor: pointer;
}
button:hover { opacity: .9; }
button.secondary { background: var(--soft); color: var(--text); }
button.small { min-height: 32px; padding: 5px 9px; font-size: 12px; }

.projectbar {
  min-height: 40px;
  padding: 5px 8px;
  margin-bottom: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 11px;
  font-size: 12px;
}
.projectbar label { display: flex; align-items: center; gap: 6px; font-weight: 700; color: var(--muted); }
.projectbar label input, .projectbar label select { color: var(--text); font-weight: 500; }
#projectName { width: 168px; }
#saveState { margin-left: auto; color: var(--muted); }

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  min-height: 0;
  flex: 1 1 auto;
}
.pane {
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 13px;
  box-shadow: var(--shadow);
}
.pane-title,
.tabs {
  min-height: 42px;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
  font-size: 12px;
  font-weight: 750;
}
.pane-title { display: flex; align-items: center; gap: 7px; padding: 9px 12px; }
.editor-pane { display: flex; flex-direction: column; min-width: 0; }
.editor-parse {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  color: var(--muted);
  font-size: 11px;
  font-weight: 650;
  text-align: right;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.editor-parse[data-state="invalid"] {
  color: color-mix(in srgb, #9f2a2a 78%, var(--text));
  font-style: italic;
}
.editor-caret {
  margin-left: 0;
  flex: 0 0 auto;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  font-weight: 650;
  letter-spacing: .02em;
}
.file-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--border-strong); }
.tabs { display: flex; align-items: center; gap: 2px; padding: 4px 6px; overflow-x: auto; }
.tab {
  min-height: 31px;
  padding: 5px 9px;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}
.tab.active { background: var(--soft); color: var(--text); }

textarea {
  width: 100%;
  height: calc(100% - 42px);
  min-height: 566px;
  padding: 17px 18px;
  border: 0;
  resize: vertical;
  outline: 0;
  background: var(--surface);
  color: var(--text);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 14px;
  line-height: 1.6;
  tab-size: 2;
}
.editor-pane textarea {
  min-height: 360px;
  height: clamp(360px, 42vh, 560px);
}
pre {
  margin: 0;
  min-height: 566px;
  height: calc(100% - 42px);
  overflow: auto;
  padding: 17px;
  background: var(--code);
  color: var(--code-text);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 13px;
  line-height: 1.55;
}
.result-pane { min-height: 660px; }
.result-pane pre {
  min-height: 520px;
  height: min(68vh, 760px);
}

.app-preview {
  min-height: 566px;
  height: calc(100% - 42px);
  overflow: auto;
  padding: 24px;
  background: var(--surface-subtle);
}
.result-pane .app-preview {
  min-height: 610px;
  height: auto;
  max-height: 78vh;
}
.empty-preview {
  max-width: 360px;
  margin: 64px auto;
  padding: 22px 20px;
  border: 1px dashed var(--border-strong);
  border-radius: 14px;
  background: var(--surface);
  color: var(--muted);
  text-align: center;
  line-height: 1.5;
}
.empty-preview strong {
  display: block;
  margin-bottom: 6px;
  color: var(--text);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.empty-preview p { margin: 0; }
.empty-preview-hint {
  display: block;
  margin-top: 10px;
  font-size: 11px;
}
.patch-window {
  max-width: 430px;
  margin: 12px auto;
  overflow: hidden;
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  background: var(--surface);
  color: var(--text);
  box-shadow: 0 18px 44px rgba(24, 24, 27, .12);
}
.result-pane .patch-window { max-width: min(100%, 920px); }
.patch-window-title { padding: 9px 12px; border-bottom: 1px solid var(--border); background: var(--soft); font-size: 12px; font-weight: 750; display: flex; align-items: center; gap: 8px; }
.patch-window-icon { width: 16px; height: 16px; object-fit: contain; flex: 0 0 auto; border: 0; }
.patch-window-body { min-height: 180px; padding: 22px; display: flex; flex-direction: column; align-items: flex-start; gap: 13px; }
.patch-text { margin: 0; font-size: 18px; }
.patch-button { padding: 8px 15px; display: inline-flex; align-items: center; gap: 8px; }
.patch-button.patch-linklabel { padding: 2px 0; border: 0; border-radius: 0; background: transparent; color: #2563eb; box-shadow: none; text-decoration: underline; text-underline-offset: 3px; font-weight: 650; }
.patch-button.patch-linklabel:hover { color: #1d4ed8; background: transparent; }
.patch-button.patch-linklabel:focus-visible { outline: 2px solid currentColor; outline-offset: 3px; }
@media (prefers-color-scheme: dark) { .patch-button.patch-linklabel { color: #93c5fd; } .patch-button.patch-linklabel:hover { color: #bfdbfe; } }
.patch-button-image { width: 16px; height: 16px; object-fit: contain; flex: 0 0 auto; border: 0; }
.patch-input { width: 100%; max-width: 280px; }
.patch-tabs { width: 100%; min-height: 180px; overflow: hidden; border: 1px solid var(--border-strong); border-radius: 10px; background: var(--surface); color: var(--text); }
.patch-tabs-list { display: flex; align-items: center; gap: 2px; min-height: 39px; padding: 4px; overflow-x: auto; border-bottom: 1px solid var(--border); background: var(--soft); }
.patch-tab-button { min-height: 30px; padding: 5px 10px; background: transparent; color: var(--muted); font-size: 12px; white-space: nowrap; }
.patch-tab-button[aria-selected="true"] { background: var(--surface); color: var(--text); box-shadow: inset 0 0 0 1px var(--border-strong); }
.patch-tab-panel { min-height: 138px; padding: 16px; display: flex; flex-direction: column; align-items: flex-start; gap: 12px; overflow: auto; }
.patch-tab-panel > .patch-input { max-width: 280px; }

.designer-view { height: calc(100% - 42px); min-height: 566px; display: flex; flex-direction: column; }
.result-pane .designer-view { min-height: 620px; height: auto; }
.designer-toolbar {
  min-height: 44px;
  padding: 7px 9px;
  display: flex;
  align-items: center;
  gap: 6px;
  border-bottom: 1px solid var(--border);
  background: var(--surface-subtle);
  color: var(--muted);
  font-size: 11px;
}
.designer-toolbar strong { color: var(--text); }
.designer-toolbar span { margin-left: auto; }
.designer-canvas { flex: 1; min-height: 522px; height: auto; border-radius: 0; }
.result-pane .designer-surface,
.result-pane .designer-surface .designer-canvas { min-height: 575px; }
.result-pane .designer-canvas { height: auto; max-height: 78vh; }
.designer-control { cursor: default; outline: 2px dashed transparent; outline-offset: 3px; }
.designer-control:hover { outline-color: var(--border-strong); }

.statusbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 12px;
  margin-top: 8px;
  padding: 0 2px;
  color: var(--muted);
  font-size: 11px;
}
.statusbar strong { color: var(--text); font-weight: 700; }
.status-left,
.status-right {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  min-width: 0;
}
.status-chip {
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  padding: 0 8px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  color: var(--text);
  font-size: 10px;
  font-weight: 750;
  letter-spacing: .02em;
}

.site-info {
  width: min(1080px, 100%);
  margin: 54px auto 0;
}
.intro-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, .62fr);
  gap: 34px;
  align-items: center;
  padding: 34px 0 30px;
  border-bottom: 1px solid var(--border);
}
.eyebrow {
  margin: 0 0 7px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .11em;
  text-transform: uppercase;
}
.intro-card h2 { margin: 0 0 12px; max-width: 720px; font-size: clamp(30px, 4vw, 48px); line-height: 1.02; letter-spacing: -1.8px; }
.intro-copy > p:not(.eyebrow) { max-width: 700px; margin: 0; color: var(--muted); font-size: 16px; line-height: 1.65; }
.intro-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 14px; margin-top: 20px; }
.intro-actions a { color: var(--muted); font-size: 13px; font-weight: 700; text-decoration: none; }
.intro-actions a:hover { color: var(--text); }
.intro-actions .primary-link { padding: 9px 13px; border-radius: 9px; background: var(--text); color: var(--surface); }
.code-card { min-height: 0; height: auto; padding: 19px; border-radius: 13px; box-shadow: var(--shadow); font-size: 13px; }

.signal-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-bottom: 1px solid var(--border);
}
.signal { padding: 20px 18px 22px 0; }
.signal + .signal { padding-left: 22px; border-left: 1px solid var(--border); }
.signal strong { display: block; margin-bottom: 5px; font-size: 14px; }
.signal span { display: block; color: var(--muted); font-size: 12px; line-height: 1.5; }

.details-stack { margin-top: 12px; }
details { border-bottom: 1px solid var(--border); }
summary {
  min-height: 62px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 15px 2px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 760;
}
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--muted); font-size: 20px; font-weight: 400; }
details[open] summary::after { content: "−"; }
.summary-hint { margin-left: auto; color: var(--muted); font-size: 11px; font-weight: 600; }
.details-body { padding: 2px 2px 26px; }
.two-column { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 34px; }
.details-body h3 { margin: 3px 0 9px; font-size: 18px; }
.details-body p { margin: 0 0 10px; color: var(--muted); font-size: 13px; line-height: 1.65; }
.details-body strong, .details-body code { color: var(--text); }
.roadmap-list { display: grid; gap: 0; }
.roadmap-list > div { display: grid; grid-template-columns: 150px 1fr; gap: 18px; padding: 10px 0; }
.roadmap-list strong { font-size: 13px; }
.roadmap-list span { color: var(--muted); font-size: 13px; line-height: 1.55; }

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-top: 24px;
  color: var(--muted);
  font-size: 11px;
}
.site-footer nav { display: flex; flex-wrap: wrap; gap: 14px; }
.site-footer a { text-decoration: none; }
.site-footer a:hover { color: var(--text); }

@media (max-width: 920px) {
  .topbar { align-items: flex-start; flex-direction: column; }
  .toolbar { width: 100%; }
  .toolbar .compact-field { flex: 1 1 145px; }
  .toolbar select { width: 100%; }
  .workspace { grid-template-columns: 1fr; min-height: 0; }
  textarea { min-height: 48vh; height: 48vh; font-size: 16px; }
  .editor-pane textarea { min-height: 44vh; height: 44vh; }
  pre, .app-preview { min-height: 34vh; height: 34vh; }
  .result-pane { min-height: 0; }
  .result-pane pre,
  .result-pane .app-preview,
  .result-pane .designer-canvas { min-height: 42vh; height: auto; max-height: none; }
  .designer-view { min-height: 40vh; height: auto; }
  .designer-canvas { min-height: 34vh; height: 34vh; }
  .result-pane .designer-view,
  .result-pane .designer-surface,
  .result-pane .designer-surface .designer-canvas { min-height: 42vh; }
  .intro-card { grid-template-columns: 1fr; gap: 20px; }
  .code-card { max-width: 620px; }
}

@media (max-width: 640px) {
  .studio { padding-top: max(12px, env(safe-area-inset-top)); }
  .brand-mark { width: 34px; height: 34px; border-radius: 10px; }
  h1 { font-size: 18px; }
  .brand p { display: none; }
  .toolbar button { flex: 0 0 auto; }
  .build-field { display: none; }
  #build { margin-left: auto; }
  .projectbar { align-items: stretch; }
  .projectbar label { flex: 1 1 140px; flex-direction: column; align-items: flex-start; }
  .projectbar input, .projectbar select { width: 100%; min-width: 0; }
  #saveState { flex-basis: 100%; margin-left: 0; }
  .designer-toolbar { flex-wrap: wrap; }
  .designer-toolbar span { width: 100%; margin-left: 0; }
  .statusbar { display: flex; }
  .site-info { margin-top: 38px; }
  .intro-card { padding-top: 24px; }
  .intro-card h2 { font-size: 34px; }
  .intro-copy > p:not(.eyebrow) { font-size: 14px; }
  .signal-grid { grid-template-columns: 1fr; }
  .signal { padding: 14px 0; }
  .signal + .signal { padding-left: 0; border-left: 0; border-top: 1px solid var(--border); }
  .two-column { grid-template-columns: 1fr; gap: 16px; }
  .summary-hint { display: none; }
  .roadmap-list > div { grid-template-columns: 1fr; gap: 3px; }
  .site-footer { flex-direction: column; }
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111113;
    --surface: #18181b;
    --surface-subtle: #1d1d20;
    --text: #f4f4f5;
    --muted: #a1a1aa;
    --border: #2c2c31;
    --border-strong: #3f3f46;
    --soft: #27272a;
    --code: #0c0c0e;
    --code-text: #f4f4f5;
    --shadow: 0 8px 28px rgba(0, 0, 0, .18);
  }
  .brand-mark, .intro-actions .primary-link { background: #f4f4f5; color: #18181b; }
  button { background: #f4f4f5; color: #18181b; }
  .patch-window { background: #f7f7f8; color: #18181b; }
  .patch-window-title { background: #ececee; border-color: #d4d4d8; }
  .patch-tabs { background: #f7f7f8; color: #18181b; border-color: #d4d4d8; }
  .patch-tabs-list { background: #ececee; border-color: #d4d4d8; }
  .patch-tab-button { color: #71717a; }
  .patch-tab-button[aria-selected="true"] { background: #fff; color: #18181b; }
}

.patch-tree{width:min(100%,520px);margin:0;padding:10px 12px;list-style:none;border:1px solid var(--border);border-radius:10px;background:var(--surface-subtle)}
.patch-tree ul{margin:3px 0 0 18px;padding:0;list-style:none}
.patch-tree li{margin:2px 0}
.patch-tree-node{min-height:28px;padding:4px 8px;border-radius:7px;background:transparent;color:inherit;font:inherit;text-align:left;display:inline-flex;align-items:center;gap:6px}
.patch-tree-node-image{width:16px;height:16px;object-fit:contain;flex:0 0 auto;border:0}
.patch-tree-node-state{display:inline-flex;align-items:center;margin-left:2px;padding:1px 6px;border-radius:999px;font-size:10px;font-weight:800;line-height:1.5;text-transform:uppercase;letter-spacing:.03em;background:var(--soft);color:var(--muted)}
.patch-tree-node[data-patch-tree-state="muted"] .patch-tree-node-state{opacity:.72}
.patch-tree-node[data-patch-tree-state="info"] .patch-tree-node-state{background:#dbeafe;color:#1d4ed8}
.patch-tree-node[data-patch-tree-state="success"] .patch-tree-node-state{background:#dcfce7;color:#166534}
.patch-tree-node[data-patch-tree-state="warning"] .patch-tree-node-state{background:#fef3c7;color:#92400e}
.patch-tree-node[data-patch-tree-state="danger"] .patch-tree-node-state{background:#fee2e2;color:#991b1b}
@media(prefers-color-scheme:dark){.patch-tree-node[data-patch-tree-state="info"] .patch-tree-node-state{background:#1e3a8a;color:#dbeafe}.patch-tree-node[data-patch-tree-state="success"] .patch-tree-node-state{background:#14532d;color:#dcfce7}.patch-tree-node[data-patch-tree-state="warning"] .patch-tree-node-state{background:#78350f;color:#fef3c7}.patch-tree-node[data-patch-tree-state="danger"] .patch-tree-node-state{background:#7f1d1d;color:#fee2e2}}
.patch-tree-node:hover,.patch-tree-node:focus-visible{background:var(--soft)}
.patch-tree-node:focus-visible{outline:2px solid color-mix(in srgb,var(--text) 32%,transparent);outline-offset:1px}
.patch-tree-node:disabled{opacity:1;cursor:default}