/* StepForge UI
 * Minimal desktop shell with a clean, Logitech-like surface:
 * neutral panels, subtle borders, blue accent, and generous spacing.
 */

:root {
  --bg: #f4f6f8;
  --panel: rgba(255, 255, 255, 0.92);
  --panel-solid: #ffffff;
  --panel-2: #eef2f6;
  --text: #18212b;
  --muted: #657181;
  --border: #d9e1e8;
  --accent: #0068ff;
  --accent-strong: #0054cc;
  --accent-fg: #ffffff;
  --danger: #c52d2d;
  --warn: #ffe7b7;
  --shadow: 0 14px 40px rgba(15, 23, 42, 0.08);
  --radius: 14px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f141b;
    --panel: rgba(20, 27, 35, 0.94);
    --panel-solid: #141b23;
    --panel-2: #1b2430;
    --text: #e7eef7;
    --muted: #9ba8b7;
    --border: #273241;
    --accent: #3b8cff;
    --accent-strong: #69a1ff;
    --accent-fg: #08101a;
    --danger: #ff6b6b;
    --warn: #4a3410;
    --shadow: 0 14px 40px rgba(0, 0, 0, 0.35);
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font: 13px/1.45 "Segoe UI Variable", "Segoe UI", system-ui, -apple-system, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(0, 104, 255, 0.05), transparent 34%),
    linear-gradient(180deg, var(--bg), color-mix(in srgb, var(--bg) 88%, #000 12%));
  overflow: hidden;
}

*::selection { background: rgba(0, 104, 255, 0.2); }

#app { display: flex; flex-direction: column; height: 100vh; }
#view { flex: 1; min-height: 0; display: flex; }
.hidden { display: none !important; }
.muted { color: var(--muted); font-size: 12px; }

button {
  font: inherit;
  color: var(--text);
  background: var(--panel-solid);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 6px 12px;
  cursor: pointer;
  white-space: nowrap;
  transition: background 140ms ease, border-color 140ms ease, transform 120ms ease, box-shadow 140ms ease;
}
button:hover { background: var(--panel-2); }
button:active { transform: translateY(1px); }
button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-fg);
}
button.primary:hover { background: var(--accent-strong); border-color: var(--accent-strong); }
button.danger { color: var(--danger); }
button.icon { padding: 5px 9px; min-width: 34px; }
button.tool {
  padding: 5px 10px;
  border-color: transparent;
  background: transparent;
  color: var(--muted);
}
button.tool:hover { background: var(--panel-2); color: var(--text); }
button.tool.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-fg);
}

input, select, textarea {
  font: inherit;
  color: var(--text);
  background: var(--panel-solid);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 7px 10px;
}
input::placeholder, textarea::placeholder { color: color-mix(in srgb, var(--muted) 78%, transparent); }
input:focus, select:focus, textarea:focus, button:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--accent) 60%, white 40%);
  outline-offset: 1px;
}
textarea { resize: vertical; }
label { user-select: none; }
kbd {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0 5px;
  font: inherit;
  font-size: 11px;
}

#topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 56px;
  padding: 0 16px;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--panel-solid) 78%, transparent);
  backdrop-filter: blur(16px);
}
.brand {
  font-weight: 650;
  letter-spacing: 0.01em;
  cursor: pointer;
  user-select: none;
}
#topbar-context { display: flex; align-items: center; gap: 8px; min-width: 0; }
#topbar-context .muted { max-width: 44vw; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#global-search { width: min(360px, 32vw); margin-left: auto; }
#capture-status {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  background: #b42318;
  color: #fff;
  font-size: 12px;
}
#capture-status button {
  padding: 3px 8px;
  border: 0;
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
}

.library, .editor { flex: 1; min-height: 0; display: flex; }

.lib-side {
  width: 248px;
  min-width: 248px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  border-right: 1px solid var(--border);
  background: color-mix(in srgb, var(--panel-solid) 84%, transparent);
  overflow-y: auto;
}
.lib-side h3,
.pane-props h3 {
  margin: 12px 0 6px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}
.lib-side .nav-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 10px;
  cursor: pointer;
  user-select: none;
  color: var(--text);
}
.lib-side .nav-item:hover { background: var(--panel-2); }
.lib-side .nav-item.active {
  background: color-mix(in srgb, var(--accent) 12%, var(--panel-solid));
  color: var(--accent-strong);
}
.lib-side .nav-item .count {
  margin-left: auto;
  color: var(--muted);
  font-size: 11px;
}
.lib-main {
  flex: 1;
  min-width: 0;
  overflow-y: auto;
  padding: 22px 24px;
}
.lib-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.guide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
}
.guide-card {
  position: relative;
  padding: 16px;
  min-height: 168px;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
  cursor: pointer;
}
.guide-card:hover { border-color: color-mix(in srgb, var(--accent) 50%, var(--border)); }
.guide-card.selectable { padding-left: 40px; }
.guide-card.selected {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, var(--panel));
}
.guide-card h4 {
  margin: 0 0 8px;
  font-size: 15px;
  line-height: 1.3;
  padding-right: 22px;
  word-break: break-word;
}
.guide-card .meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 10px;
}
.guide-card .badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 7px;
  border-radius: 999px;
  background: var(--panel-2);
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}
.guide-card .fav {
  position: absolute;
  top: 10px;
  right: 10px;
  opacity: 0.35;
  font-size: 16px;
  cursor: pointer;
}
.guide-card .fav.on {
  opacity: 1;
  color: #f5a524;
}
.guide-card .select-check {
  position: absolute;
  top: 14px;
  left: 14px;
  width: 16px;
  height: 16px;
  cursor: pointer;
}
.guide-card .muted { font-size: 12px; margin-top: auto; padding-top: 8px; }
.guide-card .snippet,
.qa-item .snippet { color: var(--muted); }
.guide-card .snippet {
  margin: 0 0 8px;
  font-size: 12px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.bulk-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  padding: 8px 12px;
  margin-bottom: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel-2);
}
.bulk-bar .spacer { flex: 1; }

.empty-state {
  padding: 60px 20px;
  text-align: center;
  color: var(--muted);
}
.empty-state .big { font-size: 40px; margin-bottom: 10px; color: var(--text); }

.pane-steps {
  width: 270px;
  min-width: 270px;
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: color-mix(in srgb, var(--panel-solid) 86%, transparent);
  border-right: 1px solid var(--border);
}
.pane-canvas {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: linear-gradient(180deg, color-mix(in srgb, var(--bg) 76%, white 24%), var(--bg));
}
.pane-props {
  width: 330px;
  min-width: 330px;
  padding: 14px;
  overflow-y: auto;
  border-left: 1px solid var(--border);
  background: color-mix(in srgb, var(--panel-solid) 88%, transparent);
}
.pane-head,
.pane-foot {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px;
}
.pane-head { justify-content: space-between; border-bottom: 1px solid var(--border); }
.pane-foot { border-top: 1px solid var(--border); flex-wrap: wrap; }
.eyebrow {
  color: var(--muted);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.steps-list {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 10px;
}
.step-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  margin-bottom: 4px;
  border: 1px solid transparent;
  border-radius: 12px;
  cursor: pointer;
}
.step-item:hover { background: var(--panel-2); }
.step-item.selected {
  border-color: color-mix(in srgb, var(--accent) 42%, var(--border));
  background: color-mix(in srgb, var(--accent) 10%, var(--panel-solid));
}
.step-item.sub { margin-left: 18px; }
.step-item .num {
  min-width: 28px;
  color: var(--muted);
  font-weight: 650;
}
.step-item .t {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.step-item .flags {
  font-size: 10px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.step-item.skipped .t { text-decoration: line-through; opacity: 0.68; }
.step-item.hiddenstep .t { opacity: 0.5; }
.status-dot { width: 8px; height: 8px; border-radius: 999px; flex: none; }
.status-todo { background: #9aa7b8; }
.status-in-progress { background: #f0a500; }
.status-done { background: #22a06b; }

.canvas-toolbar {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--panel-solid) 70%, transparent);
}
.canvas-toolbar .sep {
  width: 1px;
  height: 20px;
  background: var(--border);
  margin: 0 4px;
}
.canvas-wrap {
  flex: 1;
  min-height: 0;
  display: grid;
  place-items: center;
  padding: 18px;
  overflow: auto;
  position: relative;
}
.canvas-wrap canvas {
  background: #fff;
  border-radius: 12px;
  box-shadow: var(--shadow);
  max-width: 100%;
  max-height: 100%;
}
.canvas-empty {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--muted);
  pointer-events: none;
}

.pane-props section + section { margin-top: 16px; }
.pane-props input[type="text"],
.pane-props input[type="number"],
.pane-props input[type="color"],
.pane-props select,
.pane-props textarea,
.pane-props .rich-editor {
  width: 100%;
}
.pane-props .row,
.form-row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.pane-props .row > label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}
.form-row {
  gap: 10px;
  margin-bottom: 8px;
}
.form-row > label:first-child {
  width: 160px;
  flex: none;
  color: var(--muted);
}
.form-row.stacked {
  flex-direction: column;
  align-items: stretch;
}
.form-row.stacked > label:first-child {
  width: auto;
  margin-bottom: 4px;
}

.rich-toolbar {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}
.rich-toolbar button { padding: 4px 8px; font-size: 12px; }
.rich-editor {
  min-height: 110px;
  max-height: 220px;
  overflow-y: auto;
  padding: 10px 11px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--panel-solid);
}
.rich-editor:focus { outline: 2px solid color-mix(in srgb, var(--accent) 60%, white 40%); }
.rich-editor table,
.rich-editor th,
.rich-editor td {
  border: 1px solid var(--border);
  border-collapse: collapse;
  padding: 2px 8px;
}
.rich-editor pre {
  padding: 8px;
  border-radius: 10px;
  background: var(--panel-2);
}

.block-card,
.annotation-editor-inner {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.block-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px;
  background: var(--panel-solid);
}
.annotation-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.annotation-editor .form-row > label:first-child {
  width: 118px;
}

fieldset {
  margin: 0;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--panel);
}
fieldset legend {
  padding: 0 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 650;
}

.settings-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.placeholder-rows {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.placeholder-row {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 8px;
}
.placeholder-row input { width: 100%; }

.quick-actions {
  width: min(760px, 92vw);
}
.quick-actions input {
  width: 100%;
  font-size: 15px;
  padding: 11px 12px;
}
.qa-results {
  margin-top: 10px;
  max-height: 360px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-top: 8px;
  border-top: 1px solid var(--border);
}
.qa-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 10px;
  cursor: pointer;
}
.qa-item:hover,
.qa-item.active {
  background: var(--panel-2);
}
.qa-item .kind {
  flex: none;
  margin-top: 2px;
  padding: 2px 6px;
  border-radius: 999px;
  background: var(--panel-2);
  color: var(--muted);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.export-dialog,
.linked-guide,
.card-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.warn-banner {
  padding: 10px 12px;
  border-radius: 12px;
  background: var(--warn);
  color: var(--text);
}

#modal-root:not(:empty) {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  background: rgba(10, 15, 20, 0.42);
}
.modal {
  width: min(720px, 92vw);
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  background: var(--panel-solid);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.modal.wide { width: min(1020px, 96vw); }
.modal header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  font-weight: 650;
}
.modal header .close {
  margin-left: auto;
  color: var(--muted);
  cursor: pointer;
}
.modal .body {
  padding: 16px 18px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.modal footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 12px 18px;
  border-top: 1px solid var(--border);
}

#toast-root {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 80;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.toast {
  max-width: 360px;
  padding: 10px 14px;
  border-radius: 12px;
  background: var(--text);
  color: var(--panel-solid);
  box-shadow: var(--shadow);
}
.toast.error {
  background: var(--danger);
  color: #fff;
}

.ctx-menu {
  position: fixed;
  z-index: 70;
  min-width: 190px;
  padding: 5px;
  background: var(--panel-solid);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow);
}
.ctx-menu .mi {
  padding: 7px 10px;
  border-radius: 9px;
  cursor: pointer;
}
.ctx-menu .mi:hover { background: var(--panel-2); }
.ctx-menu .mi.danger { color: var(--danger); }
.ctx-menu hr {
  margin: 6px 0;
  border: 0;
  border-top: 1px solid var(--border);
}


/* ---------- welcome screen ---------- */
#welcome-host { flex: 1; min-height: 0; display: flex; }
.welcome {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 9vh 32px 7vh;
}
.welcome-title { text-align: center; }
.welcome-title h1 {
  margin: 0 0 10px;
  font-size: 44px;
  font-weight: 700;
  letter-spacing: -0.015em;
}
.welcome-title p { font-size: 14px; margin: 0; }
.welcome-actions {
  margin-top: auto;
  display: flex;
  gap: 18px;
  width: min(880px, 100%);
}
.welcome-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 26px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--panel);
  box-shadow: var(--shadow);
  cursor: pointer;
}
.welcome-btn:hover {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
  transform: translateY(-2px);
}
.welcome-btn.primary {
  background: var(--accent);
  border-color: var(--accent);
}
.welcome-btn.primary .welcome-btn-label,
.welcome-btn.primary .welcome-btn-hint { color: var(--accent-fg); }
.welcome-btn-label { font-size: 16px; font-weight: 650; }
.welcome-btn-hint { font-size: 12px; color: var(--muted); }

/* ---------- editor additions: blocks, focused view, export options ---------- */
.spacer { flex: 1; }
.focused-controls {
  margin-top: 6px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel-2);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.focused-controls .form-row label { width: 50px; flex: none; color: var(--muted); font-size: 12px; }
.focused-controls input[type="range"] { flex: 1; }
.blocks-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 8px; }
.blocks-list .block-card textarea,
.blocks-list .block-card input { width: 100%; }
.blocks-list .block-card { gap: 6px; }
.export-options { display: flex; flex-direction: column; gap: 6px; padding: 4px 2px; max-height: 260px; overflow-y: auto; }
.placeholder-row { display: flex; gap: 8px; margin-bottom: 6px; }
.placeholder-row input { flex: 1; }
.card-list { display: flex; flex-direction: column; gap: 8px; }
.card-list .row { align-items: center; }
.row { display: flex; gap: 8px; align-items: center; }