:root {
  color-scheme: light;
  --bg: #f6f7f8;
  --surface: #ffffff;
  --surface-subtle: #eef2f3;
  --border: #d8dee2;
  --text: #182026;
  --muted: #64717a;
  --primary: #1f6f5b;
  --primary-strong: #154f42;
  --danger: #a33a35;
  --warning: #996515;
  --ok: #207349;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); }
.app-shell { min-height: 100vh; display: grid; grid-template-columns: 248px minmax(0, 1fr); }
.sidebar { background: #13231f; color: white; padding: 18px 14px; position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.brand { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin: 0 0 20px; padding: 0 6px; }
.brand strong { font-size: 20px; }
.nav-group { margin: 18px 0; }
.nav-group-title { color: #9fb8b0; font-size: 11px; font-weight: 750; letter-spacing: .08em; text-transform: uppercase; margin: 0 0 6px; padding: 0 8px; }
.nav-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.nav-list a { display: block; color: #e8f4ef; text-decoration: none; font-size: 14px; padding: 8px 10px; border-radius: 6px; }
.nav-list a:hover { background: rgba(255,255,255,.1); }
.content { min-width: 0; }
main { max-width: 1220px; margin: 0 auto; padding: 28px; }
h1 { font-size: 28px; line-height: 1.15; margin: 0 0 18px; letter-spacing: 0; }
h2 { font-size: 19px; margin: 0 0 12px; letter-spacing: 0; }
h3 { font-size: 15px; margin: 0 0 8px; letter-spacing: 0; }
p { line-height: 1.55; }
.page-header { display: flex; align-items: start; justify-content: space-between; gap: 16px; margin-bottom: 18px; }
.page-kicker { color: var(--muted); margin-top: -8px; max-width: 760px; }
.grid { display: grid; grid-template-columns: minmax(180px, 260px) 1fr; gap: 18px; align-items: start; }
.markdown-page-grid { grid-template-columns: minmax(150px, 180px) minmax(0, 1fr); }
main:has(.markdown-workspace) { max-width: 1500px; padding-left: 20px; padding-right: 20px; }
.panel, .card { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 16px; }
.section { margin-bottom: 18px; }
.overview-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.flow-grid { display: grid; grid-template-columns: repeat(4, minmax(150px, 1fr)); gap: 10px; }
.flow-step { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 13px; min-height: 94px; }
.flow-step strong { display: block; margin-bottom: 4px; }
.trace-row { display: grid; grid-template-columns: minmax(180px, 1fr) minmax(220px, 2fr); gap: 14px; padding: 14px 0; border-top: 1px solid #e8ecef; }
.trace-meta { color: var(--muted); font-size: 13px; }
.trace-timeline { display: grid; gap: 8px; }
.trace-span { border: 1px solid var(--border); border-left: 4px solid var(--primary); border-radius: 7px; padding: 10px; background: #fbfcfc; }
.trace-span.error { border-left-color: var(--danger); }
.badge { display: inline-flex; align-items: center; border-radius: 999px; padding: 3px 8px; font-size: 12px; font-weight: 700; background: var(--surface-subtle); color: var(--text); }
.badge.ok { background: #e5f4ec; color: var(--ok); }
.badge.error { background: #f9e7e4; color: var(--danger); }
.badge.warning { background: #fff2d6; color: var(--warning); }
.list { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.list a { display: block; padding: 8px 10px; color: var(--text); text-decoration: none; border-radius: 6px; }
.list a:hover { background: var(--surface-subtle); }
textarea { width: 100%; min-height: 460px; border: 1px solid #c7cfd4; border-radius: 6px; padding: 12px; font: 14px/1.5 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; resize: vertical; }
textarea.compact { min-height: 86px; font-family: inherit; }
textarea.prompt { min-height: 220px; }
input[type=password], input[type=text], input[type=time], input[type=number], select { width: 100%; border: 1px solid #c7cfd4; border-radius: 6px; padding: 10px; font-size: 15px; background: white; }
label { display: block; font-weight: 650; margin: 10px 0 5px; }
label.inline { display: inline-flex; align-items: center; gap: 7px; margin: 4px 12px 4px 0; font-weight: 500; }
.tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }
.tabs a { color: var(--text); background: #e6ebee; padding: 7px 10px; border-radius: 6px; text-decoration: none; font-weight: 650; font-size: 14px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 16px; }
.question-grid { display: grid; grid-template-columns: minmax(110px, 160px) minmax(140px, 220px) 1fr; gap: 10px; align-items: start; margin: 10px 0; }
.muted { color: var(--muted); font-size: 13px; }
.status-grid { display: grid; grid-template-columns: minmax(180px, 280px) 1fr; gap: 8px 14px; }
button, .button { border: 0; background: var(--primary); color: white; border-radius: 6px; padding: 9px 13px; font-weight: 650; cursor: pointer; text-decoration: none; display: inline-block; }
button.secondary, .button.secondary { background: #6b7280; }
button.danger { background: var(--danger); }
.actions { display: flex; gap: 10px; align-items: center; margin: 12px 0; flex-wrap: wrap; }
.markdown-form { min-width: 0; }
.markdown-workspace { display: grid; gap: 10px; }
.markdown-toolbar { position: sticky; top: 0; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 8px; background: rgba(246,247,248,.94); border: 1px solid var(--border); border-radius: 8px; backdrop-filter: blur(10px); }
.segmented-control { display: inline-grid; grid-template-columns: repeat(3, minmax(72px, 1fr)); gap: 2px; padding: 2px; background: #e5eaed; border-radius: 7px; }
.segmented-control button { min-height: 34px; padding: 7px 10px; color: var(--text); background: transparent; border-radius: 5px; }
.segmented-control button.active { background: var(--surface); box-shadow: 0 1px 2px rgba(24,32,38,.12); }
.markdown-meta { display: inline-flex; gap: 10px; align-items: center; color: var(--muted); font-size: 13px; white-space: nowrap; }
.markdown-meta span + span::before { content: ""; display: inline-block; width: 5px; height: 5px; margin: 0 10px 2px 0; border-radius: 999px; background: #9aa8af; }
.markdown-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 10px; min-height: min(68vh, 760px); }
.markdown-pane { min-width: 0; min-height: 540px; max-height: min(72vh, 820px); overflow: auto; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); }
.markdown-source { display: block; width: 100%; height: 100%; min-height: 540px; border: 0; border-radius: 8px; padding: 18px; background: #fbfcfc; font: 15px/1.62 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; resize: none; outline: none; tab-size: 2; }
.markdown-source:focus { box-shadow: inset 0 0 0 2px rgba(31,111,91,.35); }
.markdown-preview-pane { padding: 24px clamp(18px, 3vw, 34px); }
.markdown-workspace[data-mode="source"] .markdown-layout,
.markdown-workspace[data-mode="reading"] .markdown-layout { grid-template-columns: minmax(0, 1fr); }
.markdown-workspace[data-mode="source"] .markdown-preview-pane,
.markdown-workspace[data-mode="reading"] .markdown-source-pane { display: none; }
.markdown-workspace[data-mode="reading"] .markdown-preview-pane { max-width: 860px; width: 100%; margin: 0 auto; }
.preview { line-height: 1.62; font-size: 15px; }
.preview > *:first-child { margin-top: 0; }
.preview > *:last-child { margin-bottom: 0; }
.preview h1, .preview h2, .preview h3, .preview h4, .preview h5, .preview h6 { margin: 1.35em 0 .55em; line-height: 1.18; }
.preview h1 { font-size: 30px; padding-bottom: 8px; border-bottom: 1px solid #e2e7ea; }
.preview h2 { font-size: 23px; padding-bottom: 6px; border-bottom: 1px solid #e8ecef; }
.preview h3 { font-size: 18px; }
.preview a { color: var(--primary-strong); text-decoration-thickness: 1px; text-underline-offset: 3px; }
.preview blockquote { border-left: 3px solid #91b5a7; margin: 14px 0; padding: 8px 0 8px 14px; color: #46544f; background: #f5f8f7; }
.preview ul, .preview ol { padding-left: 24px; }
.preview li { margin: 4px 0; }
.preview input[type=checkbox] { width: 15px; height: 15px; margin-right: 6px; vertical-align: -2px; accent-color: var(--primary); }
.preview code { padding: 2px 5px; border-radius: 5px; background: #edf1f2; font: 13px/1.45 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; }
.preview pre { overflow-x: auto; padding: 14px; border: 1px solid #dfe5e8; border-radius: 8px; background: #f7f9fa; }
.preview pre code { padding: 0; background: transparent; font-size: 13px; }
.preview table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 14px; }
.preview th, .preview td { border: 1px solid #dfe5e8; padding: 8px 10px; text-align: left; vertical-align: top; }
.preview th { background: #f0f3f4; font-weight: 750; }
.preview hr { border: 0; border-top: 1px solid #dde4e7; margin: 22px 0; }
.habit-row { display: grid; grid-template-columns: 1fr auto; gap: 12px; align-items: start; margin-bottom: 14px; }
.definition-row { display: grid; grid-template-columns: 1.2fr 1fr auto; gap: 14px; align-items: center; padding: 12px 0; border-top: 1px solid #e8ecef; }
.automation-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.automation-card { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 12px; align-items: center; background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 14px; }
.automation-card p { margin: 5px 0 0; }
.automation-row { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; gap: 12px; align-items: center; padding: 12px 0; border-top: 1px solid #e8ecef; }
.advanced-panel { margin: 14px 0; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; background: #fbfcfc; }
.advanced-panel summary { cursor: pointer; font-weight: 700; }
.review-list { display: grid; gap: 8px; margin: 0 0 14px; }
.review-list div { display: grid; grid-template-columns: minmax(120px, 180px) minmax(0, 1fr); gap: 10px; padding: 8px 0; border-top: 1px solid #e8ecef; }
.review-list dt { font-weight: 750; }
.review-list dd { margin: 0; color: var(--muted); }
.log-details { max-width: min(760px, 100%); white-space: pre-wrap; overflow-x: auto; background: #f7f8f8; border: 1px solid #dfe5e8; border-radius: 6px; padding: 12px; font: 13px/1.45 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; }
.memory-row { display: grid; grid-template-columns: 1.3fr minmax(180px, 260px) minmax(150px, 220px); gap: 14px; align-items: start; padding: 12px 0; border-top: 1px solid #e8ecef; }
.module-row { display: grid; grid-template-columns: 120px minmax(120px, 200px) 1fr 92px; gap: 10px; align-items: start; padding: 12px 0; border-top: 1px solid #e8ecef; }
.module-config { display: none; }
.module-row[data-module-type="journal_question"] .module-config--journal_question,
.module-row[data-module-type="habit_tracker"] .module-config--habit_tracker,
.module-row[data-module-type="reminder"] .module-config--reminder,
.module-row[data-module-type="learning"] .module-config--learning,
.module-row[data-module-type="strategy"] .module-config--strategy,
.module-row[data-module-type="self_test"] .module-config--self_test { display: block; }
.habit-edit-row { display: grid; grid-template-columns: minmax(160px, 1fr) auto; gap: 12px; align-items: start; padding: 10px 0; border-top: 1px solid #e8ecef; }
.weekdays { display: flex; gap: 8px; flex-wrap: wrap; margin: 8px 0; }
.error { color: var(--danger); }

/* Story 6.4: two-column routine editor, rhythm picker, module cards, preview. */
.editor-2col { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, 360px); gap: 20px; align-items: start; }
.editor-preview { position: sticky; top: 18px; }
.rhythm-pills { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0 14px; }
.pill { display: inline-flex; align-items: center; gap: 6px; padding: 7px 12px; border: 1px solid var(--border); border-radius: 999px; cursor: pointer; background: #fff; }
.pill--active { background: var(--accent, #2f6fed); color: #fff; border-color: transparent; }
.module-card { border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; margin: 12px 0; background: #fff; }
.module-card-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 8px; }
.module-order-badge { font-weight: 750; color: var(--muted); }
.module-order-controls { display: flex; gap: 6px; }
.iconbtn { padding: 2px 9px; line-height: 1.2; }
.module-card .module-config { display: none; }
.module-card[data-module-type="journal_question"] .module-config--journal_question,
.module-card[data-module-type="habit_tracker"] .module-config--habit_tracker,
.module-card[data-module-type="reminder"] .module-config--reminder,
.module-card[data-module-type="learning"] .module-config--learning,
.module-card[data-module-type="strategy"] .module-config--strategy,
.module-card[data-module-type="self_test"] .module-config--self_test { display: block; }
.module-goal-source { margin-top: 10px; padding-top: 10px; border-top: 1px solid #eef1f3; }
.preview-sentence { font-weight: 750; font-size: 16px; }
.preview-warning { display: inline-block; margin: 6px 0; }
.preview-occurrences, .preview-flow { margin: 6px 0 12px; padding-left: 20px; }
.routine-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; margin-top: 14px; }
.routine-card { border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px; background: #fff; }
.routine-card--paused { opacity: 0.72; }
.routine-card-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.routine-schedule { font-weight: 700; margin: 8px 0 4px; }
.routine-next { margin: 0 0 6px; }
.banner { border-radius: 8px; padding: 10px 14px; margin: 10px 0; font-weight: 700; }
.banner.ok { background: #e5f4ec; color: var(--ok); }
.banner.warn { background: #fff2d6; color: var(--warning); }
.routine-flow { list-style: none; padding: 0; margin: 6px 0 10px; border-left: 2px solid var(--border); }
.routine-flow-step { position: relative; padding: 4px 0 4px 12px; }
.routine-flow-step::before { content: ""; position: absolute; left: -5px; top: 12px; width: 8px; height: 8px; border-radius: 999px; background: var(--border); }
.routine-flow-title { font-weight: 600; margin-right: 6px; }
.routine-flow-type { font-size: 12px; }
.routine-flow-input { display: block; font-size: 12px; margin-top: 2px; }

/* Story 6.6: drag handle, shared-block picker, templates, flow canvas */
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.module-drag-handle { cursor: grab; color: var(--muted); font-size: 16px; user-select: none; margin-right: auto; }
.module-card.sortable-ghost { opacity: 0.45; }
.module-card.sortable-chosen { box-shadow: 0 0 0 2px var(--accent, #2f6fed); }
.module-reuse-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.module-reuse-row select { flex: 1 1 auto; min-width: 180px; }
.template-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px; margin-top: 8px; }
.template-card { display: flex; flex-direction: column; gap: 4px; border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; background: #fff; text-decoration: none; color: var(--text); }
.template-card:hover { border-color: var(--accent, #2f6fed); }
/* Story 6.7: contextual building-block picker. */
.block-picker #picker-controls { display: flex; flex-direction: column; gap: 8px; margin: 8px 0; }
.block-picker input[type="search"] { width: 100%; }
.picker-filters summary { cursor: pointer; color: var(--muted); font-size: 13px; }
.chip-row { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-top: 6px; }
.chip-label { font-size: 12px; font-weight: 700; color: var(--muted); min-width: 56px; }
.chip { display: inline-flex; align-items: center; gap: 4px; border: 1px solid var(--border); border-radius: 999px; padding: 3px 10px; font-size: 12px; background: #fff; cursor: pointer; }
.picker-cards { list-style: none; padding: 0; margin: 10px 0 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 10px; }
.picker-card { border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; background: #fff; display: flex; flex-direction: column; gap: 6px; }
.picker-card-head { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.picker-card-head strong { margin-right: auto; }
.picker-what { font-size: 13px; margin: 0; }
.picker-preview summary { cursor: pointer; font-size: 12px; color: var(--muted); }
.telegram-mini { white-space: pre-wrap; background: var(--surface-subtle); border-radius: 8px; padding: 8px 10px; font-size: 12px; margin: 6px 0 0; }
.flow-canvas-steps { list-style: none; padding: 0; margin: 8px 0 0; }
.flow-canvas-node { position: relative; border: 1px solid var(--border); border-radius: 10px; padding: 8px 12px; margin: 0 0 18px; background: #fff; }
.flow-canvas-node:not(:last-child)::after { content: "\2193"; position: absolute; left: 50%; bottom: -16px; transform: translateX(-50%); color: var(--muted); }
.flow-canvas-pos { display: inline-flex; align-items: center; justify-content: center; width: 22px; height: 22px; border-radius: 999px; background: var(--surface-subtle); font-weight: 700; font-size: 12px; margin-right: 6px; }
.flow-canvas-title { font-weight: 650; margin-right: 6px; }
.flow-canvas-type { font-size: 12px; }
.flow-canvas-input { display: block; font-size: 12px; margin-top: 2px; }

/* Story 6.10: auto-layout SVG flow canvas (drawn data-flow edges). */
.flow-svg { display: block; margin-top: 8px; max-width: 100%; overflow: visible; }
.flow-node rect { fill: #fff; stroke: var(--border); stroke-width: 1.5; }
.flow-node[data-module-type="strategy"] rect { stroke: #7c5cff; }
.flow-node[data-module-type="self_test"] rect { stroke: #1f9d72; }
.flow-node[data-module-type="habit_tracker"] rect { stroke: #d98324; }
.flow-node-title { font-weight: 650; font-size: 13px; fill: var(--text, #1a1a1a); }
.flow-node-type { font-size: 11px; fill: var(--muted); }
.flow-chain-edge { stroke: var(--muted); stroke-width: 1.5; }
.flow-input-edge { stroke: #7c5cff; stroke-width: 1.5; stroke-dasharray: 4 3; }
.flow-arrow-head { fill: var(--muted); }
.flow-source rect { fill: var(--surface-subtle); stroke: var(--border); }
.flow-source-label { font-size: 11px; font-weight: 600; fill: var(--text, #1a1a1a); }
.flow-source-scope { font-size: 10px; fill: var(--muted); }

@media (max-width: 900px) {
  .editor-2col { grid-template-columns: 1fr; }
  .editor-preview { position: static; }
}
@media (max-width: 900px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { position: static; height: auto; }
  main { padding: 18px; }
  .overview-grid, .flow-grid { grid-template-columns: 1fr; }
  .grid, .form-grid, .question-grid, .status-grid, .definition-row, .module-row, .memory-row, .trace-row, .automation-grid, .automation-card, .automation-row, .review-list div { grid-template-columns: 1fr; }
  .markdown-toolbar { position: static; align-items: stretch; flex-direction: column; }
  .segmented-control { width: 100%; }
  .markdown-meta { justify-content: space-between; width: 100%; }
  .markdown-layout { grid-template-columns: 1fr; min-height: 480px; }
  .markdown-pane, .markdown-source { min-height: 460px; max-height: none; }
  .markdown-workspace[data-mode="live"] .markdown-layout { grid-template-columns: 1fr; }
}