:root {
  --night: #141826;
  --night-2: #1b2033;
  --night-3: #262c44;
  --line: #2f3652;
  --moon: #e9e4d8;
  --mist: #a9b0c2;
  --mist-2: #878da3;
  --rec: #ffb340;
  --rec-deep: #e8902a;
  --paper: #f3eee3;
  --paper-2: #e7e0d0;
  --ink: #23222b;
  --ink-2: #5b5866;
  --teal: #7cc6b4;
  --iris: #9aa8ff;
  --plum: #c49bea;
  --ember: #ff7a68;
  --sans: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --serif: "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", "STSong", serif;
  --dock-h: 128px;
  --safe-b: env(safe-area-inset-bottom, 0px);
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  background: var(--night);
  color: var(--moon);
  font: 16px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}
[x-cloak] { display: none !important; }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; border: 0; background: none; padding: 0; }
:focus-visible { outline: 2px solid var(--rec); outline-offset: 2px; border-radius: 6px; }
a { color: inherit; }

/* ---------- 通用 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 0 18px; border-radius: 12px;
  background: var(--night-3); color: var(--moon); font-weight: 500;
  transition: background .15s, transform .1s;
}
.btn:hover { background: #2f3654; }
.btn:active { transform: scale(.98); }
.btn[disabled] { opacity: .45; pointer-events: none; }
.btn.primary { background: var(--rec); color: #1c1407; font-weight: 600; }
.btn.primary:hover { background: #ffc164; }
.btn.ghost { background: transparent; color: var(--mist); }
.btn.ghost:hover { color: var(--moon); background: var(--night-2); }
.btn.danger { background: transparent; color: var(--ember); box-shadow: inset 0 0 0 1px #5a3434; }
.btn.small { min-height: 34px; padding: 0 12px; font-size: 14px; border-radius: 9px; }

.field { display: grid; gap: 6px; margin-bottom: 16px; }
.field label { font-size: 14px; color: var(--mist); }
.input, textarea.input, select.input {
  width: 100%; min-height: 46px; padding: 11px 14px; border-radius: 12px;
  background: var(--night-2); border: 1px solid var(--line); color: var(--moon); outline: none;
}
.input:focus { border-color: var(--mist-2); }
textarea.input { resize: vertical; line-height: 1.6; }
.hint { font-size: 13px; color: var(--mist-2); line-height: 1.5; }
.err { color: var(--ember); font-size: 14px; min-height: 20px; }

.badge {
  display: inline-flex; align-items: center; gap: 6px; flex-shrink: 0;
  font-size: 12px; padding: 2px 9px; border-radius: 99px;
  background: var(--night-3); color: var(--mist);
}
.badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.s-discussing { color: var(--rec); }
.s-finalized { color: var(--teal); }
.s-developing { color: var(--iris); }
.s-reviewing { color: var(--plum); }
.s-accepting { color: var(--rec); background: #3b2e17; }
.s-done { color: var(--teal); background: #1d3530; }
.s-archived { color: var(--mist-2); }
.s-stuck { color: var(--ember); background: #3a2224; }

.dot-me { width: 9px; height: 9px; border-radius: 50%; background: var(--rec); box-shadow: 0 0 0 4px #ffb34026; flex-shrink: 0; }

/* ---------- 登录 ---------- */
.auth {
  min-height: 100%; display: grid; place-items: center; padding: 32px 22px;
  background: radial-gradient(120% 70% at 50% 0%, #20264000, #0e111b 90%), var(--night);
}
.auth-box { width: 100%; max-width: 380px; }
.auth h1 {
  font: 600 36px/1.2 var(--serif); letter-spacing: .02em; margin: 0 0 10px;
}
.auth .lede { color: var(--mist); margin: 0 0 36px; font-size: 16px; }
.auth .switch { margin-top: 18px; text-align: center; color: var(--mist); font-size: 14px; }
.auth .switch button { color: var(--rec); }
.rec-mark { display: inline-block; width: 12px; height: 12px; border-radius: 50%; background: var(--rec); margin-right: 12px; vertical-align: 5px; box-shadow: 0 0 10px #ffb34099; }

/* ---------- 顶栏 ---------- */
.top {
  position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 10px;
  padding: 12px 16px; padding-top: max(12px, env(safe-area-inset-top));
  background: #141826e8; backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid #262c4480;
}
.top .title { flex: 1; min-width: 0; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.top .title input { width: 100%; background: transparent; border: 0; outline: none; font-weight: 600; padding: 4px 0; }
.icon-btn { width: 40px; height: 40px; border-radius: 11px; display: grid; place-items: center; color: var(--mist); flex-shrink: 0; }
.icon-btn:hover { background: var(--night-2); color: var(--moon); }
.icon-btn svg { width: 22px; height: 22px; }

/* ---------- 首页 ---------- */
.home { max-width: 760px; margin: 0 auto; padding: 0 0 140px; }
.brand { font: 600 22px/1 var(--serif); letter-spacing: .03em; flex: 1; }
.projects { display: flex; gap: 8px; overflow-x: auto; padding: 16px 16px 6px; scrollbar-width: none; }
.projects::-webkit-scrollbar { display: none; }
.chip {
  flex-shrink: 0; min-height: 36px; padding: 0 14px; border-radius: 99px;
  background: var(--night-2); color: var(--mist); font-size: 14px; border: 1px solid transparent;
}
.chip.on { color: var(--moon); border-color: var(--mist-2); background: var(--night-3); }
.chip.add { color: var(--mist-2); border: 1px dashed var(--line); background: transparent; }
.project-note { padding: 4px 18px 0; font-size: 13px; color: var(--mist-2); }
.project-note button { color: var(--rec); font-size: 13px; }

.group { padding: 18px 16px 0; }
.group h3 { margin: 0 0 8px 4px; font-size: 13px; font-weight: 500; color: var(--mist-2); }
.plan-row {
  display: flex; align-items: center; gap: 12px; width: 100%; text-align: left;
  padding: 15px 14px; border-radius: 14px; background: transparent;
}
.plan-row + .plan-row { border-top: 1px solid #262c4466; }
.plan-row:hover { background: var(--night-2); }
.plan-row .t { flex: 1; min-width: 0; }
.plan-row .t b { display: block; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.plan-row .t small { color: var(--mist-2); font-size: 13px; }
.empty {
  margin: 56px 24px 0; text-align: center; color: var(--mist);
}
.empty p { font: 22px/1.6 var(--serif); color: var(--moon); margin: 0 0 8px; }

.fab {
  position: fixed; left: 50%; transform: translateX(-50%); bottom: calc(26px + var(--safe-b)); z-index: 30;
  display: flex; align-items: center; gap: 12px; height: 60px; padding: 0 26px 0 20px; border-radius: 99px;
  background: var(--rec); color: #1c1407; font-weight: 600; font-size: 17px;
  box-shadow: 0 8px 24px -10px #ffb34099;
}
.fab .ring { width: 18px; height: 18px; border-radius: 50%; border: 5px solid #1c1407; }

/* ---------- 需求页 ---------- */
.plan-wrap { display: flex; flex-direction: column; height: 100dvh; }
.tabs { display: flex; gap: 4px; padding: 8px 16px 0; }
.tab { flex: 1; min-height: 38px; border-radius: 10px; color: var(--mist); font-size: 15px; position: relative; }
.tab.on { color: var(--moon); background: var(--night-2); }
.tab .n { position: absolute; top: 6px; margin-left: 4px; width: 7px; height: 7px; border-radius: 50%; background: var(--rec); }
.panes { flex: 1; min-height: 0; display: flex; }
.pane { flex: 1; min-width: 0; overflow-y: auto; -webkit-overflow-scrolling: touch; }
.pane.talk { padding: 18px 16px calc(var(--dock-h) + var(--safe-b) + 24px); }

/* 对话流 */
.msg { margin: 0 0 18px; max-width: 640px; }
.msg .who { font-size: 12px; color: var(--mist-2); margin-bottom: 4px; display: flex; gap: 8px; align-items: center; }
.msg.user .body { font-size: 16.5px; line-height: 1.75; white-space: pre-wrap; word-break: break-word; }
.msg.user .body.pending { color: var(--mist); }
.msg.user .body.failed { color: var(--ember); }
.msg.user .edit { color: var(--mist-2); font-size: 12px; }
.msg.user .edit:hover { color: var(--moon); }
.msg.ai .body {
  padding: 16px; border-radius: 12px; background: var(--night-2);
  border-left: 3px solid var(--rec); white-space: pre-wrap; line-height: 1.7; font-size: 15.5px;
}
.msg.dev .body, .msg.review .body {
  padding: 16px; border-radius: 12px; background: #1e2440; box-shadow: inset 0 0 0 1px #3a4479;
  white-space: pre-wrap; line-height: 1.7;
}
.msg.system { color: var(--mist-2); font-size: 13px; text-align: center; max-width: none; padding: 0 20px; }
.thinking { display: flex; align-items: center; gap: 10px; color: var(--mist); font-size: 14px; margin: 4px 0 18px; }
.thinking i { width: 6px; height: 6px; border-radius: 50%; background: var(--rec); animation: blink 1.2s infinite; }
.thinking i:nth-child(2) { animation-delay: .2s; } .thinking i:nth-child(3) { animation-delay: .4s; }
@keyframes blink { 0%, 80%, 100% { opacity: .2; } 40% { opacity: 1; } }
.talk-empty { color: var(--mist); padding: 40px 6px; }
.talk-empty p { font: 24px/1.6 var(--serif); color: var(--moon); margin: 0 0 10px; }

/* 录音坞 */
.dock {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 25;
  padding: 10px 16px calc(14px + var(--safe-b));
  background: linear-gradient(to top, var(--night) 70%, #14182600);
}
.dock-inner { max-width: 640px; margin: 0 auto; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 12px; }
.dock .side { display: flex; }
.dock .side.r { justify-content: flex-end; }
.rec-btn {
  position: relative; width: 76px; height: 76px; border-radius: 50%;
  background: var(--night-3); display: grid; place-items: center;
  box-shadow: inset 0 0 0 2px #3d4566;
  transition: background .2s, box-shadow .2s;
}
.rec-btn .core { width: 30px; height: 30px; border-radius: 50%; background: var(--rec); transition: all .25s cubic-bezier(.3,.7,.3,1); }
.rec-btn:hover .core { transform: scale(1.08); }
.rec-btn.on { background: #2b2214; box-shadow: inset 0 0 0 2px var(--rec); }
.rec-btn.on .core { width: 26px; height: 26px; border-radius: 7px; }
.rec-btn.on::after {
  content: ""; position: absolute; inset: -10px; border-radius: 50%;
  box-shadow: 0 0 0 0 #ffb34066; animation: breathe 1.8s ease-out infinite;
}
@keyframes breathe { 0% { box-shadow: 0 0 0 0 #ffb34044; } 100% { box-shadow: 0 0 0 16px #ffb34000; } }
.rec-btn.busy .core { animation: pulse 1s infinite; }
@keyframes pulse { 50% { opacity: .35; } }
.wave-row { max-width: 640px; margin: 0 auto 10px; display: flex; align-items: center; gap: 12px; height: 44px; }
.wave-row canvas { flex: 1; height: 44px; width: 100%; }
.wave-row .time { font-variant-numeric: tabular-nums; color: var(--rec); font-size: 15px; min-width: 48px; text-align: right; }
.wave-row .cancel { color: var(--mist); font-size: 14px; }
.turn-btn {
  min-height: 44px; padding: 0 18px; border-radius: 12px; background: #2b2214; color: var(--rec);
  box-shadow: inset 0 0 0 1.5px var(--rec); font-weight: 600; white-space: nowrap;
}
.turn-btn:hover { background: #3a2d18; }
.turn-btn[disabled] { background: transparent; color: var(--mist-2); box-shadow: inset 0 0 0 1px var(--line); font-weight: 500; }
.textbar { max-width: 640px; margin: 0 auto 10px; display: flex; gap: 8px; align-items: flex-end; }
.textbar textarea { flex: 1; min-height: 46px; max-height: 160px; }
.dock-note { max-width: 640px; margin: 0 auto; text-align: center; color: var(--mist); font-size: 14px; padding: 8px 0 4px; }

/* 文档：纸面 */
.pane.doc { background: var(--paper); color: var(--ink); }
.paper { max-width: 700px; margin: 0 auto; padding: 28px 20px 150px; }
.paper .meta { font: 13px var(--sans); color: var(--ink-2); display: flex; gap: 14px; align-items: center; margin-bottom: 18px; flex-wrap: wrap; }
.paper .meta button { color: var(--ink-2); text-decoration: underline; text-underline-offset: 3px; }
.md { font: 16px/1.8 var(--serif); }
@media (min-width: 760px) { .md { font-size: 17px; line-height: 1.9; } .paper { padding: 36px 32px 150px; } }
.md h1 { font-size: 28px; line-height: 1.3; margin: 0 0 22px; font-weight: 700; letter-spacing: .01em; }
.md h2 { font-size: 18px; margin: 30px 0 10px; font-weight: 700; padding-bottom: 6px; border-bottom: 1px solid #d8cfbd; }
.md h3 { font-size: 17px; margin: 22px 0 6px; }
.md p { margin: 0 0 12px; }
.md ul, .md ol { padding-left: 1.4em; margin: 0 0 12px; }
.md li { margin: 3px 0; }
.md li input[type=checkbox] { margin-right: 8px; accent-color: var(--ink); }
.md code { font-size: .88em; background: var(--paper-2); padding: 1px 5px; border-radius: 4px; }
.md pre { background: var(--paper-2); padding: 12px; border-radius: 8px; overflow-x: auto; font-size: 14px; }
.md blockquote { margin: 0 0 12px; padding-left: 14px; border-left: 3px solid #cfc5b1; color: var(--ink-2); }
.doc-empty { text-align: center; padding: 80px 10px; color: var(--ink-2); font: 19px/1.8 var(--serif); }
.doc-bar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 25;
  padding: 14px 16px calc(14px + var(--safe-b));
  display: flex; gap: 10px; justify-content: center; flex-wrap: wrap;
  background: linear-gradient(to top, var(--paper) 72%, #f3eee300);
}
.doc-bar .btn { background: var(--ink); color: var(--paper); }
.doc-bar .btn:hover { background: #3a3946; }
.doc-bar .btn.primary { background: var(--rec-deep); color: #1c1407; }
.doc-bar .btn.ghost { background: transparent; color: var(--ink-2); }
.doc-bar .btn.danger { background: transparent; color: #b4412f; box-shadow: inset 0 0 0 1px #d9a59a; }
.doc-bar .note { width: 100%; text-align: center; font-size: 14px; color: var(--ink-2); }

/* 验收 */
.pane.check { padding: 20px 16px 140px; }
.check-inner { max-width: 760px; margin: 0 auto; }
.ac {
  padding: 16px 0; border-bottom: 1px solid var(--line);
}
.ac .head { display: flex; gap: 12px; align-items: baseline; }
.ac .id { color: var(--rec); font-weight: 600; font-variant-numeric: tabular-nums; flex-shrink: 0; }
.ac .text { flex: 1; }
.ac .cols { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 10px; padding-left: 40px; }
.ac .col { font-size: 14px; color: var(--mist); min-width: 0; }
.ac .col b { display: block; font-size: 12px; font-weight: 500; color: var(--mist-2); margin-bottom: 2px; }
.ac .col .v { word-break: break-word; white-space: pre-wrap; }
.v-done, .v-pass { color: var(--teal); }
.v-partial, .v-cannot_verify { color: var(--rec); }
.v-not_done, .v-fail { color: var(--ember); }
.summary-box { background: var(--night-2); border-radius: 14px; padding: 14px 16px; margin-bottom: 14px; font-size: 15px; white-space: pre-wrap; }
.summary-box b { display: block; font-size: 12px; color: var(--mist-2); font-weight: 500; margin-bottom: 4px; }
.check-empty { color: var(--mist); text-align: center; padding: 60px 10px; }

/* 桌面：对话 | 右侧（纸面或验收）并排 */
@media (min-width: 1000px) {
  .panes { display: grid; grid-template-columns: 40% 60%; }
  .pane.talk { border-right: 1px solid var(--line); }
  .dock { right: auto; width: 40%; }
  .doc-bar { left: auto; width: 60%; }
}
.desk-switch { display: flex; gap: 4px; padding: 14px 20px 0; }
.desk-switch button { font-size: 14px; color: var(--ink-2); padding: 6px 12px; border-radius: 8px; }
.desk-switch button.on { background: var(--paper-2); color: var(--ink); }
.pane.check .desk-switch button { color: var(--mist); }
.pane.check .desk-switch button.on { background: var(--night-2); color: var(--moon); }
.pane.check .desk-switch { padding: 0 0 14px; max-width: 760px; margin: 0 auto; }

/* ---------- 设置 ---------- */
.settings { max-width: 640px; margin: 0 auto; padding: 8px 18px 80px; }
.settings section { padding: 26px 0; border-bottom: 1px solid var(--line); }
.settings h2 { font: 600 20px/1.3 var(--serif); margin: 0 0 6px; }
.settings .desc { color: var(--mist); font-size: 14px; margin: 0 0 18px; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.kv { display: flex; justify-content: space-between; gap: 10px; padding: 10px 0; font-size: 15px; border-top: 1px solid #262c4466; }
.kv:first-child { border-top: 0; }
.kv span { color: var(--mist); }
.code {
  font: 13px/1.6 ui-monospace, "SF Mono", Menlo, monospace; background: #0f1220; color: #d7d2c4;
  padding: 12px 14px; border-radius: 10px; word-break: break-all; white-space: pre-wrap; position: relative;
}
.proj-card { padding: 16px 0; border-top: 1px solid #262c4466; }
.proj-card:first-of-type { border-top: 0; }
.dir-list { max-height: 280px; overflow-y: auto; border: 1px solid var(--line); border-radius: 12px; margin: 8px 0; }
.dir-list button { display: flex; width: 100%; gap: 8px; padding: 10px 14px; text-align: left; font-size: 14px; border-top: 1px solid #262c4466; }
.dir-list button:first-child { border-top: 0; }
.dir-list button:hover { background: var(--night-2); }
.dir-list .git { margin-left: auto; color: var(--teal); font-size: 12px; }

/* ---------- 弹层 ---------- */
.sheet-bg { position: fixed; inset: 0; z-index: 50; background: #07080dcc; display: flex; align-items: flex-end; justify-content: center; }
.sheet {
  width: 100%; max-width: 720px; max-height: 92dvh; overflow-y: auto;
  background: var(--night-2); border-radius: 22px 22px 0 0; padding: 22px 18px calc(18px + var(--safe-b));
  animation: up .25s cubic-bezier(.3,.7,.3,1);
}
@media (min-width: 760px) { .sheet-bg { align-items: center; } .sheet { border-radius: 22px; } }
@keyframes up { from { transform: translateY(30px); opacity: 0; } }
.sheet h2 { font: 600 21px/1.3 var(--serif); margin: 0 0 6px; }
.sheet .desc { color: var(--mist); font-size: 14px; margin: 0 0 16px; }
.sheet .actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 16px; flex-wrap: wrap; }
.sheet.paperish { background: var(--paper); color: var(--ink); }
.sheet.paperish .desc { color: var(--ink-2); }
.sheet.paperish textarea.input { background: #fffaf0; color: var(--ink); border-color: #d8cfbd; font: 15px/1.8 var(--serif); }
.sheet.paperish .btn { background: var(--paper-2); color: var(--ink); }
.sheet.paperish .btn.primary { background: var(--rec-deep); color: #1c1407; }
.loading-paper { padding: 40px 10px; text-align: center; color: var(--ink-2); font: 17px/1.8 var(--serif); }

.toast {
  position: fixed; left: 50%; top: calc(16px + env(safe-area-inset-top)); transform: translateX(-50%); z-index: 60;
  background: var(--moon); color: var(--night); padding: 10px 18px; border-radius: 12px; font-size: 15px;
  box-shadow: 0 10px 30px #0008; max-width: calc(100% - 32px);
}
.toast.bad { background: var(--ember); color: #250805; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}
.md li:has(> input[type=checkbox]) { list-style: none; margin-left: -1.3em; }
.target { width: 100%; text-align: center; font: 13px var(--sans); color: var(--ink-2); }
.pane.check ~ .doc-bar .target, .doc-bar.dark .target { color: var(--mist); }