*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: oklch(98.5% 0.004 250);
  --bg-subtle: oklch(96% 0.007 250);
  --bg-canvas: oklch(93.5% 0.009 250);
  --border: oklch(88% 0.010 250);
  --border-strong: oklch(76% 0.014 250);
  --text: oklch(18% 0.012 250);
  --muted: oklch(52% 0.012 250);
  --accent: oklch(54% 0.19 245);
  --accent-light: oklch(96% 0.04 245);
  --accent-text: oklch(35% 0.15 245);
  --sidebar-bg: oklch(13% 0.018 258);
  --sidebar-text: oklch(88% 0.008 255);
  --sidebar-muted: oklch(55% 0.014 255);
  --sidebar-border: oklch(22% 0.018 258);
  --sidebar-input: oklch(19% 0.018 258);
  --radius: 6px;
  --font: 'IBM Plex Sans', system-ui, sans-serif;
  --mono: 'IBM Plex Mono', 'Courier New', monospace;
}

html, body { height: 100%; }
body { font-family: var(--font); background: var(--bg); color: var(--text); -webkit-font-smoothing: antialiased; }
button { font-family: var(--font); }
textarea, input { font-family: var(--font); }

::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 3px; }

/* ── Chips ────────────────────────────────────────────────── */
.chip { display: inline-flex; align-items: center; padding: 2px 8px; border-radius: 100px; font-size: 11px; font-weight: 500; letter-spacing: 0.02em; }
.chip-blue { background: var(--accent-light); color: var(--accent-text); }
.chip-amber { background: oklch(96% 0.05 75); color: oklch(40% 0.16 75); }
.chip-gray { background: var(--bg-subtle); color: var(--muted); border: 1px solid var(--border); }

/* ── Buttons ──────────────────────────────────────────────── */
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 7px 14px; border-radius: var(--radius); font-size: 13px; font-weight: 500; cursor: pointer; border: none; transition: all 0.12s; line-height: 1; white-space: nowrap; }
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost { background: transparent; color: var(--muted); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--bg-subtle); color: var(--text); border-color: var(--border-strong); }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; pointer-events: none; }

/* ── Confidence bar ───────────────────────────────────────── */
.conf-bar { height: 3px; background: var(--border); border-radius: 2px; overflow: hidden; }
.conf-fill { height: 100%; border-radius: 2px; transition: width 0.3s; }

/* ── Template card hover ──────────────────────────────────── */
.tcard { transition: border-color 0.13s, box-shadow 0.13s; }
.tcard:hover { border-color: var(--accent) !important; box-shadow: 0 4px 20px rgba(0,0,0,0.09) !important; }
.tcard-delete-btn { border: none; background: none; cursor: pointer; color: var(--muted); padding: 2px 4px; border-radius: 4px; opacity: 0; transition: opacity 0.1s; flex-shrink: 0; }
.tcard:hover .tcard-delete-btn { opacity: 1; }
.tcard-delete-btn:hover { color: oklch(52% 0.18 25); background: oklch(97% 0.03 25); }
.tcard-delete-confirm { font-size: 11.5px; font-weight: 600; padding: 3px 9px; border-radius: 5px; border: none; cursor: pointer; background: oklch(52% 0.18 25); color: white; }
.tcard-delete-confirm:hover { background: oklch(45% 0.18 25); }
.tcard-delete-cancel { font-size: 11.5px; padding: 3px 9px; border-radius: 5px; border: 1px solid var(--border); cursor: pointer; background: white; color: var(--text); }
.tcard-delete-cancel:hover { background: var(--bg-subtle); }

/* ── Drop zone ────────────────────────────────────────────── */
.dz { border: 2px dashed var(--border-strong); border-radius: 12px; transition: border-color 0.13s, background 0.13s; }
.dz:hover, .dz.over { border-color: var(--accent); background: var(--accent-light); }

/* ── Thinking dots ────────────────────────────────────────── */
@keyframes throb { 0%,100% { opacity: 0.3; transform: scale(0.85); } 50% { opacity: 1; transform: scale(1); } }
.dot { display: inline-block; width: 5px; height: 5px; border-radius: 50%; background: var(--sidebar-muted); animation: throb 1.3s ease-in-out infinite; }
.dot:nth-child(2) { animation-delay: 0.15s; }
.dot:nth-child(3) { animation-delay: 0.30s; }

/* ── Spinner ──────────────────────────────────────────────── */
@keyframes spin { to { transform: rotate(360deg); } }
.spinner { animation: spin 0.75s linear infinite; }

/* ── Top bar ──────────────────────────────────────────────── */
.topbar { height: 52px; border-bottom: 1px solid var(--border); background: white; display: flex; align-items: center; padding: 0 20px; flex-shrink: 0; z-index: 10; gap: 16px; }
.topbar-logo { background: none; border: none; cursor: pointer; display: flex; align-items: center; gap: 8px; padding-right: 16px; border-right: 1px solid var(--border); flex-shrink: 0; }
.logo-text { font-family: var(--mono); font-weight: 500; font-size: 14.5px; letter-spacing: -0.03em; color: var(--text); }
.topbar-spacer { flex: 1; }
.topbar-breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; }
.bc-parent { color: var(--muted); cursor: pointer; }
.bc-parent:hover { color: var(--text); }
.bc-sep { color: var(--border-strong); }
.bc-current { color: var(--text); font-weight: 500; }

/* ── Home ─────────────────────────────────────────────────── */
.home-content { flex: 1; overflow: auto; padding: 44px 52px; }
.home-header { display: flex; align-items: baseline; gap: 10px; margin-bottom: 32px; }
.home-header h1 { font-size: 20px; font-weight: 600; letter-spacing: -0.025em; }
.template-count { font-size: 13px; color: var(--muted); }
.template-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); gap: 14px; }
.new-card { padding: 28px 20px; cursor: pointer; min-height: 148px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; }
.new-card-icon { width: 34px; height: 34px; border-radius: 50%; border: 1.5px solid var(--border-strong); display: flex; align-items: center; justify-content: center; color: var(--muted); }
.new-card-label { font-size: 13px; font-weight: 500; color: var(--muted); }
.home-footer { margin-top: 52px; padding-top: 24px; border-top: 1px solid var(--border); display: flex; gap: 32px; color: var(--muted); font-size: 12px; flex-wrap: wrap; }

/* ── Upload page ──────────────────────────────────────────── */
.upload-page { flex: 1; display: flex; align-items: center; justify-content: center; }
.upload-box { width: 500px; }
.upload-heading { margin-bottom: 28px; text-align: center; }
.upload-dropzone { padding: 52px 40px; display: flex; flex-direction: column; align-items: center; gap: 16px; position: relative; }
.json-dropzone { padding: 11px 16px; display: flex; align-items: center; gap: 8px; border-style: dashed; }

/* ── Upload textarea (light context) ──────────────────────── */
.upload-textarea { background: white; border: 1px solid var(--border); border-radius: 8px; outline: none; resize: none; color: var(--text); font-size: 13px; line-height: 1.6; padding: 10px 12px; width: 100%; transition: border-color 0.12s; }
.upload-textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px oklch(96% 0.04 245); }
.upload-textarea::placeholder { color: var(--border-strong); }

/* ── Editor ───────────────────────────────────────────────── */
.editor-grid { flex: 1; display: grid; grid-template-columns: clamp(240px, 22vw, 360px) clamp(180px, 17vw, 260px) 1fr; overflow: hidden; }

/* ── Chat pane ────────────────────────────────────────────── */
.chat-pane { background: var(--sidebar-bg); color: var(--sidebar-text); display: flex; flex-direction: column; border-right: 1px solid var(--sidebar-border); overflow: hidden; }
.pane-header { padding: 13px 14px; border-bottom: 1px solid var(--sidebar-border); display: flex; justify-content: space-between; align-items: center; flex-shrink: 0; }
.pane-label { font-size: 11px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--sidebar-muted); }
.chat-messages { flex: 1; overflow-y: auto; padding: 14px 12px; display: flex; flex-direction: column; gap: 9px; }
.chat-msg-row { display: flex; }
.chat-msg-row.user { justify-content: flex-end; }
.chat-msg-row.ai { justify-content: flex-start; }
.chat-bubble { max-width: 90%; padding: 8px 11px; line-height: 1.55; font-size: 12.5px; word-break: break-word; text-wrap: pretty; }
.chat-bubble-user { background: var(--accent); color: white; border-radius: 10px 10px 2px 10px; }
.chat-bubble-ai { background: var(--sidebar-border); border-radius: 10px 10px 10px 2px; }
.chat-thinking { display: flex; gap: 4px; padding: 8px 12px; background: var(--sidebar-border); border-radius: 10px 10px 10px 2px; width: fit-content; }
.chat-error { padding: 0 12px 8px; color: #f87171; font-size: 12px; }
.chat-input-area { padding: 10px 12px; border-top: 1px solid var(--sidebar-border); flex-shrink: 0; }
.chat-input-row { background: var(--sidebar-input); border-radius: 8px; display: flex; align-items: flex-end; gap: 8px; padding: 8px 10px; }
.chat-textarea { flex: 1; background: none; border: none; outline: none; resize: none; color: var(--sidebar-text); font-size: 12.5px; line-height: 1.5; }
.chat-textarea::placeholder { color: var(--sidebar-muted); }
.chat-send-btn { width: 27px; height: 27px; border-radius: 6px; border: none; cursor: pointer; flex-shrink: 0; display: flex; align-items: center; justify-content: center; transition: background 0.12s; }
.chat-hint { font-size: 10.5px; color: var(--sidebar-muted); margin-top: 5px; text-align: right; }
.chat-new-btn { background: var(--sidebar-border); border: none; color: var(--sidebar-text); cursor: pointer; font-size: 11px; padding: 3px 9px; border-radius: 5px; font-family: var(--font); }
.chat-new-btn:hover { filter: brightness(1.2); }

/* ── Fields pane ──────────────────────────────────────────── */
.fields-pane { display: flex; flex-direction: column; border-right: 1px solid var(--border); overflow: hidden; background: var(--bg); }
.fields-header { padding: 13px 14px; border-bottom: 1px solid var(--border); flex-shrink: 0; display: flex; align-items: center; gap: 8px; }
.fields-label { font-size: 11px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.fields-count { font-size: 11.5px; color: var(--muted); background: var(--bg-subtle); border: 1px solid var(--border); border-radius: 100px; padding: 1px 7px; }
.fields-list { flex: 1; overflow: auto; padding: 6px; display: flex; flex-direction: column; gap: 2px; }
.field-card { background: white; border: 1px solid var(--border); border-radius: 7px; padding: 9px 10px; transition: border-color 0.12s; cursor: pointer; margin-bottom: 3px; }
.field-card:hover { border-color: var(--border-strong); }
.field-card.selected { border-color: var(--accent); background: var(--accent-light); }
.field-card-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 4px; }
.field-token { font-family: var(--mono); font-size: 11px; font-weight: 500; color: var(--accent-text); word-break: break-all; line-height: 1.35; }
.field-source { font-size: 11px; color: var(--muted); margin-top: 4px; line-height: 1.4; font-style: italic; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.field-conf { margin-top: 7px; }
.field-conf-pct { font-size: 10px; color: var(--muted); margin-top: 3px; }
.field-remove { border: none; background: none; cursor: pointer; color: var(--muted); padding: 1px 2px; line-height: 1; flex-shrink: 0; }
.field-remove:hover { color: var(--text); }
.field-delete-btn { border: none; background: none; cursor: pointer; color: var(--muted); font-size: 14px; line-height: 1; padding: 0 2px; flex-shrink: 0; opacity: 0; transition: opacity 0.1s; margin-left: auto; }
.field-card:hover .field-delete-btn, .tree-row:hover .field-delete-btn { opacity: 1; }
.field-delete-btn:hover { color: oklch(52% 0.18 25); }

/* ── View toggle buttons ──────────────────────────────────── */
.view-toggle-btn { border: 1px solid var(--border); background: none; border-radius: 5px; padding: 3px 5px; cursor: pointer; color: var(--muted); display: flex; align-items: center; }
.view-toggle-btn:hover { border-color: var(--border-strong); color: var(--text); }
.view-toggle-btn.active { background: var(--bg-subtle); border-color: var(--border-strong); color: var(--text); }

/* ── Tree view ────────────────────────────────────────────── */
.tree-row { display: flex; align-items: center; gap: 5px; padding-top: 3px; padding-right: 10px; padding-bottom: 3px; border-radius: 5px; cursor: pointer; min-height: 24px; }
.tree-row:hover { background: var(--bg-subtle); }
.tree-row.selected { background: var(--accent-light); }
.tree-chevron { display: flex; align-items: center; color: var(--muted); flex-shrink: 0; width: 10px; }
.tree-dash { color: var(--border-strong); font-size: 10px; flex-shrink: 0; width: 10px; text-align: center; }
.tree-group-label { font-size: 11.5px; font-weight: 600; color: var(--text); }
.tree-leaf-label { font-size: 11.5px; color: var(--text); font-family: var(--mono); flex-shrink: 0; }
.tree-value { font-size: 11px; color: var(--muted); font-style: italic; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-left: auto; max-width: 100px; }

/* ── Preview pane ─────────────────────────────────────────── */
.preview-pane { display: flex; flex-direction: column; overflow: hidden; background: var(--bg-canvas); }
.preview-header { padding: 13px 16px; border-bottom: 1px solid var(--border); background: white; display: flex; justify-content: space-between; align-items: center; flex-shrink: 0; }
.preview-label { font-size: 11px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.preview-body { flex: 1; overflow: auto; background: var(--bg-canvas); padding: 24px max(16px, calc((100% - 794px) / 2)); }
.preview-iframe { width: 794px; height: 1200px; border: none; display: block; background: white; box-shadow: 0 2px 16px rgba(0,0,0,0.10); border-radius: 2px; }

/* ── Blazor error boundary ────────────────────────────────── */
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    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
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.blazor-error-boundary::after { content: "An error has occurred."; }