/* AI features: settings, completion, suggestions, roadmap and mind map views */
:root { --ai: #7a5af0; --ai-soft: rgba(122, 90, 240, .1); }
:root[data-theme="dark"] { --ai: #a08cff; --ai-soft: rgba(160, 140, 255, .14); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) { --ai: #a08cff; --ai-soft: rgba(160, 140, 255, .14); } }

.ai-btn { color: var(--ai); border-color: color-mix(in srgb, var(--ai) 35%, transparent); }
.ai-btn:hover { background: var(--ai-soft); color: var(--ai); border-color: var(--ai); }
.ai-ico { color: var(--ai); }
.crumb.ai { color: var(--ai); }

/* segmented view switch */
.seg { display: inline-flex; padding: 2px; border-radius: 8px; background: var(--hover); box-shadow: inset 0 0 0 1px var(--hair); }
.seg button { display: inline-flex; align-items: center; gap: 5px; height: 26px; padding: 0 10px; border: 0; border-radius: 6px; background: none; color: var(--text-2); font-size: 12.5px; font-weight: 500; cursor: pointer; transition: background .15s var(--ease), color .15s, box-shadow .15s; }
.seg button .ico { width: 14px; height: 14px; }
.seg button:hover { color: var(--text); }
.seg button[aria-selected="true"] { background: var(--surface); color: var(--text); box-shadow: var(--shadow-sm), 0 0 0 1px var(--hair); }

/* ghost text completion */
.ghost-wrap { position: relative; flex: 1; min-width: 0; display: block; }
.ghost-wrap input { width: 100%; position: relative; z-index: 1; background: transparent; }
.ac-ghost { position: absolute; inset: 0; z-index: 2; display: flex; align-items: center; white-space: pre; overflow: hidden; pointer-events: none; font: inherit; }
.ghost-wrap.title .ac-ghost { padding: 0 18px; font: 600 17px/1.4 var(--font-display); letter-spacing: -.01em; }
.g-typed { color: transparent; }
.g-sugg { color: var(--muted); opacity: .75; pointer-events: auto; cursor: pointer; }
.g-kbd { margin-left: 8px; font-size: 10px; padding: 2px 5px; opacity: .85; pointer-events: auto; cursor: pointer; white-space: nowrap; }
@media (hover: none) { .g-kbd { color: var(--ai); border-color: color-mix(in srgb, var(--ai) 40%, transparent); font-size: 11px; padding: 3px 7px; } }
.inline-add .ghost-wrap input { padding: 0; }

/* buttons + feedback */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; }
.btn .ico { width: 15px; height: 15px; }
.btn.sm { height: 30px; padding: 0 10px; font-size: 12.5px; white-space: nowrap; }
.spin { width: 14px; height: 14px; border-radius: 50%; border: 2px solid currentColor; border-right-color: transparent; display: inline-block; animation: spin .7s linear infinite; flex-shrink: 0; }
@keyframes spin { to { transform: rotate(360deg); } }
.skel { height: 52px; border-radius: var(--r-md); margin-top: 8px; background: linear-gradient(90deg, var(--hover) 0%, var(--press) 50%, var(--hover) 100%); background-size: 200% 100%; animation: shimmer 1.2s linear infinite; }
@keyframes shimmer { to { background-position: -200% 0; } }

/* settings */
.settings { width: min(560px, 100%); }
.settings-body { padding: 18px; max-height: min(66vh, 640px); overflow-y: auto; }
.set-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.set-head h3 { margin: 0 0 3px; display: flex; align-items: center; gap: 8px; font-size: 15px; }
.set-head h3 .ico { color: var(--ai); }
.set-head p { margin: 0; color: var(--muted); font-size: 13px; }
.set-fields { display: grid; gap: 14px; transition: opacity .2s; }
.set-fields.off { opacity: .45; pointer-events: none; }
.set-fields .field select { height: 42px; padding: 0 12px; border-radius: var(--r-sm); border: 1px solid var(--hair-strong); background: var(--bg); font-size: 14.5px; }
.field.muted input { opacity: .55; }
.key-wrap { display: flex; gap: 6px; align-items: center; }
.key-wrap input { flex: 1; min-width: 0; }
.set-toggles { display: grid; gap: 8px; padding: 12px; border-radius: var(--r-md); background: var(--hover); }
.check-row { display: flex; align-items: flex-start; gap: 10px; font-size: 13.5px; cursor: pointer; }
.check-row input { margin-top: 3px; accent-color: var(--accent); }
.check-row small { color: var(--muted); }
.set-test { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.test-result { font-size: 12.5px; color: var(--muted); }
.test-result.ok { color: var(--green); }
.test-result.bad { color: var(--p1); }
.set-note { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.5; }
.switch { position: relative; width: 42px; height: 24px; flex-shrink: 0; cursor: pointer; }
.switch input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; z-index: 1; }
.switch span { position: absolute; inset: 0; border-radius: 99px; background: var(--hair-strong); transition: background .2s var(--ease); }
.switch span::after { content: ""; position: absolute; top: 3px; left: 3px; width: 18px; height: 18px; border-radius: 50%; background: #fff; box-shadow: 0 1px 3px rgba(0, 0, 0, .25); transition: transform .25s var(--spring); }
.switch input:checked + span { background: var(--accent); }
.switch input:checked + span::after { transform: translateX(18px); }
.switch input:focus-visible + span { box-shadow: var(--ring); }

/* AI sheets */
.ai-sheet { width: min(560px, 100%); }
.ai-sheet.wide { width: min(720px, 100%); }
.ai-body { padding: 16px 18px; display: grid; gap: 14px; max-height: min(64vh, 620px); overflow-y: auto; }
.ai-body textarea { padding: 10px 12px; border-radius: var(--r-sm); border: 1px solid var(--hair-strong); background: var(--bg); font-size: 14.5px; resize: vertical; outline: none; }
.ai-body textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.ai-status { margin: 0; display: flex; align-items: center; gap: 10px; color: var(--text-2); font-size: 13.5px; }
.ai-status .spin { color: var(--ai); }
.ai-error { padding: 12px; border-radius: var(--r-md); background: color-mix(in srgb, var(--p1) 9%, transparent); color: var(--p1); display: grid; gap: 10px; justify-items: start; }
.ai-error p { margin: 0; font-size: 13.5px; }
.sg-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.sg-list li { animation: fadeUp .3s var(--ease) both; animation-delay: calc(var(--i) * 60ms); }
.sg-list label { display: flex; align-items: flex-start; gap: 12px; padding: 10px 12px; border-radius: var(--r-md); border: 1px solid var(--hair); cursor: pointer; transition: background .15s, border-color .15s; }
.sg-list label:hover { background: var(--hover); }
.sg-list label:has(input:checked) { border-color: color-mix(in srgb, var(--ai) 40%, transparent); background: var(--ai-soft); }
.sg-list input { margin-top: 3px; accent-color: var(--ai); }
.sg-main { flex: 1; display: grid; gap: 2px; }
.sg-main b { font-weight: 600; font-size: 14px; }
.sg-main small { color: var(--muted); font-size: 12.5px; }
.sg-meta { display: flex; gap: 4px; flex-shrink: 0; }
.pill { font-size: 11px; font-weight: 600; padding: 2px 7px; border-radius: 99px; background: var(--hover); color: var(--text-2); white-space: nowrap; }
.pill.p1 { color: var(--p1); } .pill.p2 { color: var(--p2); } .pill.p3 { color: var(--p3); }

/* roadmap generator */
.rm-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.rm-row select, .rm-row input, #rmName { height: 42px; padding: 0 12px; border-radius: var(--r-sm); border: 1px solid var(--hair-strong); background: var(--bg); font-size: 14.5px; }
#rmPreview { display: grid; gap: 14px; }
#rmPreview:empty { display: none; }
.rm-phases { display: grid; gap: 10px; }
.rm-phase { border: 1px solid var(--hair); border-radius: var(--r-md); padding: 10px 12px; animation: fadeUp .35s var(--ease) both; animation-delay: calc(var(--i) * 70ms); }
.rm-phase h4 { margin: 0 0 6px; display: flex; align-items: center; gap: 8px; font-size: 14px; }
.rm-phase h4 small { margin-left: auto; color: var(--muted); font-weight: 500; font-size: 12px; }
.rm-num { width: 22px; height: 22px; border-radius: 7px; display: grid; place-items: center; background: var(--ai-soft); color: var(--ai); font-size: 12px; }
.rm-phase ul { list-style: none; margin: 0; padding: 0; }
.rm-phase label { display: flex; align-items: center; gap: 10px; padding: 5px 2px; font-size: 13.5px; cursor: pointer; }
.rm-phase label span { flex: 1; }
.rm-phase label em { font-style: normal; color: var(--muted); font-size: 12px; }
.rm-phase input { accent-color: var(--ai); }

/* wide views use the full width */
.task-area.wide { max-width: none; }
.main:has(.task-area.wide) .view-header, .main:has(.task-area.wide) .inline-add { max-width: none; }

/* roadmap view */
.rm { display: grid; gap: 14px; animation: fadeUp .35s var(--ease) both; }
.rm-summary { display: flex; align-items: center; gap: 14px; color: var(--text-2); font-size: 13px; }
.rm-progress { flex: 0 1 260px; height: 8px; border-radius: 99px; background: var(--hover); overflow: hidden; box-shadow: inset 0 0 0 1px var(--hair); }
.rm-progress span, .rm-mini span { display: block; height: 100%; border-radius: inherit; background: var(--green); transition: width .5s var(--ease); }
.rm-scroll { overflow-x: auto; border: 1px solid var(--hair); border-radius: var(--r-lg); background: var(--surface); }
.rm-grid { display: grid; min-width: max-content; }
.rm-corner, .rm-week { position: sticky; top: 0; z-index: 2; padding: 10px 12px; font-size: 12px; font-weight: 600; color: var(--muted); background: var(--surface); border-bottom: 1px solid var(--hair); }
.rm-corner { left: 0; z-index: 3; border-right: 1px solid var(--hair); }
.rm-week { border-left: 1px solid var(--hair); display: flex; flex-direction: column; }
.rm-week small { color: var(--accent-text); font-weight: 600; font-size: 10.5px; }
.rm-week.now { color: var(--accent-text); background: color-mix(in srgb, var(--accent) 6%, var(--surface)); }
.rm-phase-cell { position: sticky; left: 0; z-index: 1; padding: 12px; display: grid; gap: 6px; align-content: start; background: var(--surface); border-bottom: 1px solid var(--hair); border-right: 1px solid var(--hair); animation: fadeUp .35s var(--ease) both; animation-delay: calc(var(--i) * 50ms); }
.rm-phase-cell b { font-size: 13.5px; }
.rm-phase-cell small { color: var(--muted); font-size: 11.5px; }
.rm-mini { height: 5px; border-radius: 99px; background: var(--hover); overflow: hidden; }
.rm-cell { padding: 8px; display: flex; flex-direction: column; gap: 6px; border-left: 1px solid var(--hair); border-bottom: 1px solid var(--hair); min-height: 64px; }
.rm-cell.now { background: color-mix(in srgb, var(--accent) 4%, transparent); }
.rm-cell.nodate, .rm-week.nodate { background: color-mix(in srgb, var(--hover) 60%, var(--surface)); }
.rm-chip {
  display: flex; align-items: center; gap: 7px; width: 100%; padding: 6px 8px; border: 1px solid var(--hair); border-radius: 8px;
  background: var(--bg); color: var(--text); font-size: 12.5px; text-align: left; cursor: pointer;
  transition: transform .15s var(--ease), box-shadow .15s, border-color .15s;
}
.rm-chip:hover { transform: translateY(-1px); border-color: var(--hair-strong); box-shadow: var(--shadow-sm); }
.rm-chip i { width: 8px; height: 8px; border-radius: 50%; background: var(--p4); flex-shrink: 0; }
.rm-chip.p1 i { background: var(--p1); } .rm-chip.p2 i { background: var(--p2); } .rm-chip.p3 i { background: var(--p3); }
.rm-chip span { overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; line-height: 1.35; }
.rm-chip.done { opacity: .55; }
.rm-chip.done span { text-decoration: line-through; }
.rm-chip.overdue { border-color: color-mix(in srgb, var(--p1) 45%, transparent); }

/* mind map view */
.mm-wrap {
  position: relative; height: calc(100dvh - 210px); min-height: 380px; border: 1px solid var(--hair); border-radius: var(--r-lg);
  overflow: hidden; touch-action: none; animation: fadeUp .35s var(--ease) both;
  background-color: var(--surface);
  background-image: radial-gradient(var(--hair-strong) 1px, transparent 1px);
  background-size: 22px 22px;
}
.mm-svg { width: 100%; height: 100%; display: block; cursor: grab; user-select: none; }
.mm-svg:active { cursor: grabbing; }
.mm-edge { fill: none; stroke-width: 2.2; stroke-linecap: round; opacity: .55; }
.mm-edge.d2 { stroke-width: 1.5; opacity: .4; }
.mm-edge.done { stroke-dasharray: 4 5; opacity: .3; }
.mm-node { cursor: pointer; }
.mm-node .mm-box { fill: var(--surface); stroke: var(--c); stroke-width: 1.6; transition: fill .15s; }
.mm-node.d1 .mm-box { fill: color-mix(in srgb, var(--c) 10%, var(--surface)); stroke-width: 2; }
.mm-node.d0 { cursor: default; }
.mm-node.d0 .mm-box { fill: var(--accent); stroke: none; filter: drop-shadow(0 6px 14px color-mix(in srgb, var(--accent) 45%, transparent)); }
.mm-node.d0 .mm-text { fill: #fff; font-weight: 700; }
.mm-text { fill: var(--text); font-family: var(--font); font-weight: 500; }
.mm-node.d1 .mm-text { font-weight: 600; }
.mm-node:not(.d0):hover .mm-box, .mm-node:focus-visible .mm-box { fill: color-mix(in srgb, var(--c) 18%, var(--surface)); }
.mm-node:focus { outline: none; }
.mm-node.done { opacity: .5; }
.mm-strike { stroke: var(--muted); stroke-width: 1.3; }
.mm-plus { cursor: pointer; opacity: 0; transition: opacity .15s; }
.mm-node:hover .mm-plus, .mm-plus:focus, .mm-node.d0 .mm-plus, .mm-plus.busy { opacity: 1; }
.mm-plus circle { fill: var(--ai); stroke: var(--surface); stroke-width: 2; }
.mm-plus path { stroke: #fff; stroke-width: 2; stroke-linecap: round; }
.mm-plus.busy circle { animation: pulse .9s var(--ease) infinite; }
.mm-plus.busy path { opacity: 0; }
@media (hover: none) { .mm-plus { opacity: 1; } }
.mm-controls { position: absolute; right: 12px; bottom: 12px; display: flex; flex-direction: column; gap: 2px; padding: 4px; border-radius: 10px; background: var(--surface); box-shadow: var(--shadow-sm), 0 0 0 1px var(--hair); }
.mm-controls .icon-btn { font-size: 16px; font-weight: 600; }
.mm-hint { margin: 10px 2px 0; color: var(--muted); font-size: 13px; }

@media (max-width: 820px) {
  .seg button span { display: none; }
  .seg button { padding: 0 9px; }
  .rm-row { grid-template-columns: 1fr; }
  .mm-wrap { height: calc(100dvh - 200px); }
}