/* NovelForge / 文匠台 — manuscript-desk design system.
   Palette: ink base, warm paper editing surface, vermilion 朱批 accent
   reserved exclusively for findings & evidence marks. Offline CJK font stacks. */
:root {
  --ink-900: #14171f;     /* deepest desk shadow            */
  --ink-800: #1a1e28;     /* app background                 */
  --ink-700: #222735;     /* rail / panels                  */
  --ink-600: #2c3242;     /* raised cards                   */
  --ink-500: #3a4150;     /* borders                        */
  --line:    #333a49;     /* hairlines                      */
  --paper:   #f3ead6;     /* manuscript surface             */
  --paper-2: #ece1c8;     /* manuscript grid line           */
  --paper-ink: #2a2418;   /* text on paper                  */
  --fg:      #e8e3d6;     /* primary text on ink            */
  --fg-dim:  #a59f8e;     /* secondary text                 */
  --fg-mute: #6f6b5e;     /* tertiary / captions            */
  --zhu:     #c0392b;     /* 朱批 vermilion — findings only  */
  --zhu-soft:#e07a55;     /* lighter vermilion              */
  --jade:    #5a8f7b;     /* confirmed / success            */
  --gold:    #c9a24b;     /* highlight / lamp glow          */
  --amber-glow: rgba(201,162,75,0.10);
  --radius: 10px;
  --radius-sm: 6px;
  --sans: "Noto Sans CJK SC","Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,
          "Segoe UI",sans-serif;
  --serif: "Noto Serif CJK SC","Noto Serif SC","Songti SC","STSong","SimSun",serif;
  --mono: "SF Mono","JetBrains Mono","DejaVu Sans Mono",ui-monospace,monospace;
  --shadow: 0 12px 40px rgba(0,0,0,0.38);
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  font-family: var(--sans);
  background:
    radial-gradient(1200px 600px at 78% -8%, var(--amber-glow), transparent 60%),
    var(--ink-800);
  color: var(--fg);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font-family: inherit; font-size: inherit; color: inherit; }
::selection { background: rgba(192,57,43,0.28); }
.hidden { display: none !important; }

/* scrollbars */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--ink-500); border-radius: 8px; }
::-webkit-scrollbar-track { background: transparent; }

/* ---------- buttons & inputs ------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 8px 14px; border: 1px solid var(--ink-500); border-radius: var(--radius-sm);
  background: var(--ink-600); color: var(--fg); cursor: pointer;
  transition: all .15s ease; white-space: nowrap;
}
.btn:hover { border-color: var(--gold); background: var(--ink-500); }
.btn:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }
.btn.primary { background: var(--gold); border-color: var(--gold); color: #1c1810; font-weight: 600; }
.btn.primary:hover { background: #d8b257; }
.btn.zhu { background: var(--zhu); border-color: var(--zhu); color: #fff; }
.btn.zhu:hover { background: #d04434; }
.btn.ghost { background: transparent; }
.btn.sm { padding: 5px 10px; font-size: 12.5px; }
.btn:disabled { opacity: .45; cursor: not-allowed; }

.field { display: flex; flex-direction: column; gap: 5px; margin-bottom: 14px; }
.field label { font-size: 12px; color: var(--fg-dim); letter-spacing: .02em; }
.input, textarea.input, select.input {
  padding: 9px 11px; background: var(--ink-800); border: 1px solid var(--ink-500);
  border-radius: var(--radius-sm); color: var(--fg); width: 100%;
}
.input:focus { outline: none; border-color: var(--gold); }
textarea.input { resize: vertical; line-height: 1.7; }

.chip {
  display: inline-flex; align-items: center; gap: 5px; padding: 2px 9px;
  border-radius: 999px; font-size: 11.5px; border: 1px solid var(--ink-500);
  color: var(--fg-dim); background: var(--ink-700);
}
.tag-mono { font-family: var(--mono); font-size: 11px; color: var(--fg-mute); }

/* ---------- app shell -------------------------------------------------- */
#app { min-height: 100%; }
.shell { display: grid; grid-template-columns: 232px 1fr; min-height: 100vh; }
.rail {
  background: linear-gradient(180deg, var(--ink-700), var(--ink-800));
  border-right: 1px solid var(--line); padding: 18px 14px;
  display: flex; flex-direction: column; gap: 4px; position: sticky; top: 0; height: 100vh;
}
.brand { display: flex; align-items: baseline; gap: 9px; padding: 4px 8px 16px; }
.brand .mark {
  font-family: var(--serif); font-size: 26px; color: var(--gold); line-height: 1;
  text-shadow: 0 0 18px rgba(201,162,75,.35);
}
.brand .name { font-family: var(--serif); font-size: 16px; letter-spacing: .04em; }
.brand .sub { font-size: 10.5px; color: var(--fg-mute); margin-left: auto; letter-spacing: .14em; }
.nav-item {
  display: flex; align-items: center; gap: 11px; padding: 9px 11px;
  border-radius: var(--radius-sm); color: var(--fg-dim); cursor: pointer; position: relative;
}
.nav-item:hover { background: var(--ink-600); color: var(--fg); }
.nav-item.active { background: var(--ink-600); color: var(--fg); }
.nav-item.active::before {
  content: ""; position: absolute; left: -14px; top: 50%; transform: translateY(-50%);
  width: 3px; height: 20px; background: var(--gold); border-radius: 0 3px 3px 0;
}
.nav-item .ico { width: 17px; text-align: center; opacity: .9; }
.rail .spacer { flex: 1; }
.rail .foot { font-size: 11px; color: var(--fg-mute); padding: 8px; border-top: 1px solid var(--line); }
.rail .foot b { color: var(--fg-dim); font-weight: 600; }

.main { min-width: 0; display: flex; flex-direction: column; }
.topbar {
  display: flex; align-items: center; gap: 14px; padding: 14px 26px;
  border-bottom: 1px solid var(--line); background: rgba(26,30,40,.7); backdrop-filter: blur(6px);
  position: sticky; top: 0; z-index: 5;
}
.topbar h1 { font-family: var(--serif); font-size: 18px; margin: 0; font-weight: 600; }
.topbar .crumb { color: var(--fg-mute); font-size: 12.5px; }
.topbar .grow { flex: 1; }
.view { padding: 24px 26px; }

/* ---------- generic cards / grids -------------------------------------- */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(258px, 1fr)); gap: 16px; }
.card {
  background: var(--ink-700); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px; cursor: pointer; transition: transform .12s ease, border-color .12s ease;
}
.card:hover { transform: translateY(-2px); border-color: var(--ink-500); }
.card h3 { font-family: var(--serif); margin: 0 0 8px; font-size: 17px; }
.card .meta { color: var(--fg-mute); font-size: 12px; display: flex; gap: 12px; flex-wrap: wrap; }
.card .genre { color: var(--gold); }
.section-head { display: flex; align-items: center; gap: 12px; margin: 4px 0 18px; }
.section-head h2 { font-family: var(--serif); font-size: 20px; margin: 0; }
.section-head .grow { flex: 1; }
.muted { color: var(--fg-dim); }
.empty {
  border: 1px dashed var(--ink-500); border-radius: var(--radius); padding: 38px;
  text-align: center; color: var(--fg-dim);
}
.empty .big { font-family: var(--serif); font-size: 17px; color: var(--fg); margin-bottom: 6px; }

/* ---------- writing workbench ------------------------------------------ */
.work { display: grid; grid-template-columns: 252px 1fr 320px; height: calc(100vh - 56px); }
.work .col { overflow-y: auto; }
.tree { border-right: 1px solid var(--line); padding: 14px; background: var(--ink-800); }
.tree .head { display: flex; align-items: center; margin-bottom: 10px; }
.tree .head h4 { margin: 0; font-size: 13px; color: var(--fg-dim); letter-spacing: .08em; flex: 1; }
.chap {
  padding: 9px 11px; border-radius: var(--radius-sm); cursor: pointer; color: var(--fg-dim);
  display: flex; align-items: baseline; gap: 9px; border: 1px solid transparent;
}
.chap:hover { background: var(--ink-700); color: var(--fg); }
.chap.active { background: var(--ink-700); color: var(--fg); border-color: var(--ink-500); }
.chap .ord { font-family: var(--mono); font-size: 11px; color: var(--gold); }
.chap .wc { margin-left: auto; font-size: 11px; color: var(--fg-mute); }

/* editor — manuscript surface */
.editor-wrap { display: flex; flex-direction: column; background: var(--ink-900); }
.editor-bar {
  display: flex; align-items: center; gap: 10px; padding: 11px 18px;
  border-bottom: 1px solid var(--line); background: var(--ink-800);
}
.editor-bar input.title {
  background: transparent; border: none; font-family: var(--serif); font-size: 17px;
  color: var(--fg); flex: 1; padding: 4px 2px;
}
.editor-bar input.title:focus { outline: none; border-bottom: 1px solid var(--gold); }
.editor-bar .save-state { font-size: 12px; color: var(--fg-mute); }
.editor-bar .save-state.dirty { color: var(--zhu-soft); }
.paper-scroll { flex: 1; overflow-y: auto; padding: 30px; display: flex; justify-content: center; }
.paper {
  width: min(760px, 100%); background: var(--paper); color: var(--paper-ink);
  border-radius: 4px; padding: 46px 52px; box-shadow: var(--shadow);
  background-image: linear-gradient(var(--paper-2) 1px, transparent 1px);
  background-size: 100% 2.05em; line-height: 2.05em;
}
.paper textarea {
  width: 100%; min-height: 60vh; background: transparent; border: none; resize: none;
  color: var(--paper-ink); font-family: var(--serif); font-size: 16.5px; line-height: 2.05em;
}
.paper textarea:focus { outline: none; }
.paper .pview p { margin: 0; font-family: var(--serif); font-size: 16.5px; }
.paper .pview p.evi {
  background: linear-gradient(90deg, rgba(192,57,43,.16), transparent);
  box-shadow: inset 3px 0 0 var(--zhu); padding-left: 12px; margin-left: -15px;
  border-radius: 2px; animation: flash 1.4s ease;
}
@keyframes flash { 0%{ background: rgba(192,57,43,.42);} 100%{ background: rgba(192,57,43,.16);} }

/* AI / context panel */
.aside { border-left: 1px solid var(--line); padding: 16px; background: var(--ink-700); }
.aside h4 { margin: 0 0 10px; font-size: 12px; letter-spacing: .1em; color: var(--fg-dim); }
.seg { display: flex; gap: 6px; margin-bottom: 12px; }
.seg button {
  flex: 1; padding: 7px; border: 1px solid var(--ink-500); background: var(--ink-800);
  border-radius: var(--radius-sm); cursor: pointer; color: var(--fg-dim); font-size: 12.5px;
}
.seg button.on { background: var(--gold); color: #1c1810; border-color: var(--gold); font-weight: 600; }
.ai-out {
  margin-top: 12px; background: var(--ink-800); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 13px; min-height: 120px; max-height: 42vh;
  overflow-y: auto; font-family: var(--serif); font-size: 14.5px; line-height: 1.85;
  white-space: pre-wrap; color: var(--fg);
}
.ai-out .cursor { color: var(--gold); animation: blink 1s step-end infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* ---------- findings / analysis (朱批) --------------------------------- */
.finding {
  border: 1px solid var(--line); border-left: 3px solid var(--zhu); border-radius: var(--radius);
  background: var(--ink-700); padding: 15px 17px; margin-bottom: 13px;
}
.finding.possible { border-left-color: var(--gold); }
.finding.done { opacity: .5; }
.finding .top { display: flex; align-items: center; gap: 9px; margin-bottom: 7px; }
.finding .cat { font-family: var(--serif); font-weight: 600; }
.finding .claim { color: var(--fg); margin: 4px 0 10px; }
.sev { font-size: 11px; padding: 1px 8px; border-radius: 999px; font-weight: 600; }
.sev.high { background: rgba(192,57,43,.18); color: var(--zhu-soft); border: 1px solid rgba(192,57,43,.4); }
.sev.medium { background: rgba(201,162,75,.16); color: var(--gold); border: 1px solid rgba(201,162,75,.38); }
.sev.low { background: rgba(90,143,123,.16); color: var(--jade); border: 1px solid rgba(90,143,123,.36); }
.verdict { font-size: 11px; color: var(--fg-mute); }
.evi-row { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 10px; }
.evi-chip {
  font-family: var(--mono); font-size: 11px; padding: 3px 9px; border-radius: var(--radius-sm);
  background: var(--ink-800); border: 1px solid var(--zhu); color: var(--zhu-soft); cursor: pointer;
}
.evi-chip:hover { background: var(--zhu); color: #fff; }
.evi-chip::before { content: "朱"; font-family: var(--serif); margin-right: 5px; opacity: .8; }
.suggest { font-size: 12.5px; color: var(--fg-dim); }
.suggest b { color: var(--gold); font-weight: 600; }
.finding .actions { display: flex; gap: 8px; margin-top: 11px; }

/* ---------- tables / lists --------------------------------------------- */
.list-row {
  display: flex; align-items: center; gap: 14px; padding: 13px 15px;
  border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 9px;
  background: var(--ink-700);
}
.list-row .title { font-family: var(--serif); font-size: 15px; }
.list-row .grow { flex: 1; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--fg-mute); }
.status-dot.planted { background: var(--gold); }
.status-dot.paid_off { background: var(--jade); }
.status-dot.overdue { background: var(--zhu); }

/* ---------- modal & toast ---------------------------------------------- */
.modal-bg {
  position: fixed; inset: 0; background: rgba(10,12,16,.66); display: flex;
  align-items: center; justify-content: center; z-index: 40; backdrop-filter: blur(3px);
}
.modal {
  background: var(--ink-700); border: 1px solid var(--ink-500); border-radius: var(--radius);
  padding: 24px; width: min(520px, 92vw); box-shadow: var(--shadow); max-height: 86vh; overflow-y: auto;
}
.modal h3 { font-family: var(--serif); margin: 0 0 16px; font-size: 19px; }
.modal .row { display: flex; gap: 10px; justify-content: flex-end; margin-top: 8px; }
.toast-wrap { position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%); z-index: 60;
  display: flex; flex-direction: column; gap: 8px; align-items: center; }
.toast {
  background: var(--ink-600); border: 1px solid var(--ink-500); color: var(--fg);
  padding: 10px 18px; border-radius: 999px; box-shadow: var(--shadow); font-size: 13px;
  animation: rise .25s ease;
}
.toast.err { border-color: var(--zhu); color: var(--zhu-soft); }
.toast.ok { border-color: var(--jade); }
@keyframes rise { from { opacity: 0; transform: translateY(8px);} }

/* ---------- login ------------------------------------------------------ */
.login { min-height: 100vh; display: grid; place-items: center; }
.login .panel {
  width: min(380px, 92vw); background: var(--ink-700); border: 1px solid var(--ink-500);
  border-radius: 14px; padding: 38px 32px; box-shadow: var(--shadow);
}
.login .mark { font-family: var(--serif); font-size: 46px; color: var(--gold); text-align: center;
  text-shadow: 0 0 28px rgba(201,162,75,.4); }
.login h1 { font-family: var(--serif); text-align: center; font-size: 21px; margin: 6px 0 2px; }
.login .tag { text-align: center; color: var(--fg-mute); font-size: 12px; margin-bottom: 26px; letter-spacing: .1em; }

.spin { width: 15px; height: 15px; border: 2px solid var(--ink-500); border-top-color: var(--gold);
  border-radius: 50%; display: inline-block; animation: sp .7s linear infinite; }
@keyframes sp { to { transform: rotate(360deg); } }

.kv { display: grid; grid-template-columns: 92px 1fr; gap: 6px 14px; font-size: 13px; margin: 10px 0; }
.kv .k { color: var(--fg-mute); }

@media (max-width: 1100px) {
  .work { grid-template-columns: 220px 1fr; }
  .work .aside { display: none; }
}
@media (max-width: 720px) {
  .shell { grid-template-columns: 1fr; }
  .rail { position: static; height: auto; flex-direction: row; flex-wrap: wrap; }
  .work { grid-template-columns: 1fr; }
  .tree { display: none; }
}

/* chapter row inline actions (rename / delete) */
.chap .chap-act {
  opacity: 0; border: none; background: transparent; color: var(--fg-mute);
  cursor: pointer; font-size: 12px; padding: 2px 4px; border-radius: 4px; line-height: 1;
  transition: opacity .12s, background .12s, color .12s;
}
.chap:hover .chap-act { opacity: .7; }
.chap .chap-act:hover { opacity: 1; background: var(--ink-600); color: var(--fg); }
.chap .wc { margin-left: auto; }

/* scene context multi-select chips (Story Bible picker) */
.pick-chip {
  border: 1px solid var(--line); background: var(--ink-700); color: var(--fg-dim);
  border-radius: 999px; padding: 4px 11px; font-size: 12px; cursor: pointer;
  transition: all .12s; line-height: 1.4;
}
.pick-chip:hover { border-color: var(--ink-400); color: var(--fg); }
.pick-chip.on {
  background: var(--gold); border-color: var(--gold); color: var(--ink-900);
  font-weight: 600;
}

/* Sudowrite-style AI tool cards */
.tool-card {
  border: 1px solid var(--line); background: var(--ink-700); color: var(--fg);
  border-radius: 8px; padding: 9px 6px; font-size: 12.5px; cursor: pointer;
  transition: all .12s; text-align: center; font-weight: 500;
}
.tool-card:hover { border-color: var(--gold); color: var(--gold); background: var(--ink-600); }
.tool-card:active { transform: translateY(1px); }