:root {
  --paper:   #f4efe6;
  --paper-2: #eee7da;
  --paper-3: #e7dfce;
  --ink:     #2b2724;
  --ink-soft:#776d5f;
  --ink-faint:#a79c89;
  --accent:  #b4502b;
  --accent-soft: #b4502b22;
  --line:    #ded4c2;
  --line-soft:#e8e0d1;
  --shadow:  0 1px 2px rgba(60,45,30,.06), 0 8px 30px rgba(60,45,30,.07);
  --code-bg: #ebe3d4;
  --mark:    #f6d9803a;
  --display: "Fraunces", Georgia, serif;
  --read:    "Newsreader", Georgia, serif;
  --mono:    "IBM Plex Mono", ui-monospace, monospace;
}
[data-theme="dark"] {
  --paper:   #1b1916;
  --paper-2: #211e19;
  --paper-3: #2a261f;
  --ink:     #ece4d6;
  --ink-soft:#a99e8c;
  --ink-faint:#6f6757;
  --accent:  #db7440;
  --accent-soft: #db744022;
  --line:    #322e27;
  --line-soft:#2a261f;
  --shadow:  0 1px 2px rgba(0,0,0,.3), 0 10px 34px rgba(0,0,0,.35);
  --code-bg: #2a261f;
  --mark:    #c69a3a44;
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  font-family: var(--read);
  background: var(--paper);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}
/* faint paper grain */
body::before {
  content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 9999;
  opacity: .035; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
[data-theme="dark"] body::before { mix-blend-mode: screen; opacity: .05; }

button { font-family: var(--mono); cursor: pointer; color: inherit; }
::selection { background: var(--accent-soft); }

.app { display: grid; grid-template-columns: 300px 1fr; height: 100vh; height: 100dvh; }

/* ---------- Sidebar ---------- */
.sidebar {
  background: var(--paper-2);
  border-right: 1px solid var(--line);
  display: flex; flex-direction: column; min-height: 0;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  padding: 20px 20px 14px;
}
.brand .glyph {
  width: 30px; height: 30px; border-radius: 8px; flex: none;
  background: var(--accent); color: #fff; display: grid; place-items: center;
  font-family: var(--display); font-weight: 600; font-size: 18px;
  box-shadow: var(--shadow); transform: rotate(-4deg);
}
.brand h1 {
  font-family: var(--display); font-weight: 500; font-size: 23px; margin: 0;
  letter-spacing: -.01em; line-height: 1;
}
.brand h1 small { display:block; font-family: var(--mono); font-size: 9.5px; letter-spacing:.22em; text-transform:uppercase; color: var(--ink-faint); margin-top: 4px; }

.side-actions { padding: 0 14px 10px; display:flex; gap:8px; flex-wrap:wrap; }
.btn {
  border: 1px solid var(--line); background: var(--paper);
  border-radius: 9px; padding: 9px 12px; font-size: 12px; letter-spacing:.02em;
  display:inline-flex; align-items:center; gap:7px; transition: .15s; white-space: nowrap;
}
.btn:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-1px); }
.btn.primary { background: var(--accent); color:#fff; border-color: var(--accent); flex:1; justify-content:center; }
.btn.primary:hover { filter: brightness(1.06); color:#fff; }
.btn.icon { padding: 9px; }

.search {
  margin: 0 14px 10px; position: relative;
}
.search input {
  width: 100%; border: 1px solid var(--line); background: var(--paper);
  border-radius: 9px; padding: 9px 12px 9px 32px; font-family: var(--mono);
  font-size: 12px; color: var(--ink); outline: none; transition:.15s;
}
.search input:focus { border-color: var(--accent); }
.search svg { position:absolute; left:11px; top:50%; transform:translateY(-50%); width:14px; height:14px; color:var(--ink-faint); }

.tags-row { padding: 0 14px 8px; display:flex; flex-wrap:wrap; gap:6px; max-height: 88px; overflow:auto; }
.chip {
  font-family: var(--mono); font-size: 10.5px; border:1px solid var(--line);
  border-radius: 20px; padding: 3px 9px; color: var(--ink-soft); background:var(--paper);
  transition:.12s;
}
.chip:hover { border-color: var(--accent); color: var(--accent); }
.chip.active { background: var(--accent); color:#fff; border-color: var(--accent); }

.list { flex:1; overflow-y:auto; padding: 4px 10px 16px; min-height:0; }
.list-label { font-family: var(--mono); font-size: 9.5px; letter-spacing:.2em; text-transform:uppercase; color: var(--ink-faint); padding: 8px 8px 6px; }
.note-item {
  padding: 10px 12px; border-radius: 9px; cursor: pointer; margin-bottom: 2px;
  border: 1px solid transparent; transition: .12s;
}
.note-item:hover { background: var(--paper-3); }
.note-item.active { background: var(--paper); border-color: var(--line); box-shadow: var(--shadow); }
.note-item .t { font-family: var(--display); font-weight: 500; font-size: 15px; line-height:1.25; display:flex; align-items:center; gap:6px; }
.note-item .t .dot { width:5px; height:5px; border-radius:50%; background:var(--accent); flex:none; opacity:0; }
.note-item.active .t .dot { opacity:1; }
.note-item .x { font-size: 11.5px; color: var(--ink-soft); font-family: var(--mono); margin-top: 4px;
  overflow:hidden; text-overflow:ellipsis; white-space:nowrap; opacity:.85; }
.empty-list { color: var(--ink-faint); font-size: 12.5px; padding: 18px 12px; font-family: var(--mono); line-height:1.7; }

/* ---------- Main ---------- */
.main { display:flex; flex-direction:column; min-width:0; min-height:0; background: var(--paper); }
.topbar {
  display:flex; align-items:center; gap: 10px; padding: 12px 22px;
  border-bottom: 1px solid var(--line-soft);
}
.hamburger { display:none; }
.title-input {
  flex:1; min-width:0; border:none; background:transparent; outline:none;
  font-family: var(--display); font-weight: 500; font-size: 22px; color: var(--ink);
  letter-spacing:-.01em; padding: 4px 0;
}
.title-input::placeholder { color: var(--ink-faint); }
.toolbar { display:flex; gap:7px; align-items:center; flex:none; }
.seg { display:flex; border:1px solid var(--line); border-radius:9px; overflow:hidden; }
.seg button { border:none; background:var(--paper-2); padding:7px 13px; font-size:11.5px; color:var(--ink-soft); }
.seg button.active { background: var(--accent); color:#fff; }

.canvas { flex:1; overflow-y:auto; min-height:0; }
.sheet { max-width: 760px; margin: 0 auto; padding: 40px 32px 120px; }

.md-toolbar {
  display: flex; flex-wrap: wrap; gap: 4px;
  margin-bottom: 18px; padding-bottom: 12px;
  border-bottom: 1px solid var(--line-soft);
  position: sticky; top: 0; z-index: 5; background: var(--paper);
}
.md-toolbar button {
  border: 1px solid var(--line); background: var(--paper-2);
  border-radius: 7px; min-width: 32px; height: 30px; padding: 0 9px;
  font-family: var(--mono); font-size: 13px; line-height: 1; color: var(--ink-soft);
  display: inline-flex; align-items: center; justify-content: center; transition: .12s;
}
.md-toolbar button:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-1px); }

textarea.editor {
  width:100%; min-height: 60vh; border:none; outline:none; resize:none; background:transparent;
  font-family: var(--mono); font-size: 14px; line-height: 1.85; color: var(--ink);
  padding: 0; tab-size: 2;
}

/* rendered markdown */
.reader { font-family: var(--read); font-size: 19px; line-height: 1.72; color: var(--ink); }
.reader h1,.reader h2,.reader h3,.reader h4 { font-family: var(--display); font-weight:600; line-height:1.18; letter-spacing:-.012em; margin: 1.7em 0 .5em; }
.reader h1 { font-size: 1.9em; margin-top: .2em; }
.reader h2 { font-size: 1.5em; }
.reader h3 { font-size: 1.22em; }
.reader h4 { font-size: 1.05em; }
.reader p { margin: .85em 0; }
.reader a.ext { color: var(--accent); text-underline-offset: 3px; }
.reader a.wiki {
  color: var(--accent); cursor:pointer; text-decoration:none; font-weight:500;
  border-bottom: 1px solid var(--accent-soft); padding-bottom:1px;
}
.reader a.wiki:hover { background: var(--accent-soft); border-radius:3px; }
.reader a.wiki.missing { color: var(--ink-faint); border-bottom-style: dashed; border-color: var(--ink-faint); }
.reader .tag {
  font-family: var(--mono); font-size: .72em; background: var(--accent-soft); color: var(--accent);
  padding: 2px 8px; border-radius: 20px; cursor:pointer; white-space:nowrap;
}
.reader blockquote { border-left: 3px solid var(--accent); margin: 1em 0; padding: .2em 1.1em; color: var(--ink-soft); font-style: italic; }
.reader code { font-family: var(--mono); font-size: .82em; background: var(--code-bg); padding: .12em .4em; border-radius: 5px; }
.reader pre { background: var(--code-bg); padding: 16px 18px; border-radius: 11px; overflow:auto; border:1px solid var(--line); }
.reader pre code { background:none; padding:0; font-size:13px; line-height:1.6; }
.reader ul,.reader ol { padding-left: 1.4em; margin:.7em 0; }
.reader li { margin: .3em 0; }
.reader hr { border:none; border-top:1px solid var(--line); margin: 2em 0; }
.reader img { max-width:100%; border-radius: 10px; }
.reader .task { list-style:none; margin-left:-1.4em; }
.reader .task input { margin-right: 8px; accent-color: var(--accent); }
.reader mark { background: var(--mark); border-radius:3px; padding: 0 2px; }
.reader table { border-collapse: collapse; width:100%; margin: 1em 0; font-size:.92em; }
.reader th,.reader td { border:1px solid var(--line); padding: 7px 11px; text-align:left; }
.reader th { background: var(--paper-2); font-family: var(--mono); font-size:.85em; }

/* backlinks */
.backlinks { margin-top: 56px; border-top: 1px solid var(--line); padding-top: 22px; }
.backlinks .h { font-family: var(--mono); font-size: 10.5px; letter-spacing:.18em; text-transform:uppercase; color: var(--ink-faint); margin-bottom: 12px; display:flex; align-items:center; gap:8px; }
.backlink { background: var(--paper-2); border:1px solid var(--line); border-radius: 11px; padding: 13px 16px; margin-bottom: 10px; cursor:pointer; transition:.14s; }
.backlink:hover { border-color: var(--accent); transform: translateX(3px); }
.backlink .bt { font-family: var(--display); font-weight:500; font-size: 15px; }
.backlink .bc { font-size: 13px; color: var(--ink-soft); margin-top: 5px; line-height:1.5; }
.backlink .bc b { color: var(--accent); font-weight:500; }
.no-backlinks { color: var(--ink-faint); font-size: 13px; font-family: var(--mono); }

.meta { font-family: var(--mono); font-size: 10.5px; color: var(--ink-faint); margin-top: 30px; letter-spacing:.04em; }

/* welcome / empty main */
.blank { height:100%; display:grid; place-items:center; text-align:center; color: var(--ink-faint); padding: 30px; }
.blank .big { font-family: var(--display); font-size: 30px; color: var(--ink-soft); font-style:italic; margin-bottom:10px; }
.blank p { font-family: var(--mono); font-size: 12.5px; line-height: 1.9; }
.kbd { font-family: var(--mono); font-size: 11px; border:1px solid var(--line); border-bottom-width:2px; border-radius:6px; padding: 1px 6px; color: var(--ink-soft); background: var(--paper-2); }

/* ---------- Modal / graph ---------- */
.overlay { position: fixed; inset:0; background: rgba(20,16,10,.5); backdrop-filter: blur(3px); z-index: 500; display:none; place-items:center; }
.overlay.show { display:grid; }
.modal { background: var(--paper); border:1px solid var(--line); border-radius: 16px; box-shadow: var(--shadow); width: min(880px, 92vw); height: min(620px, 86vh); display:flex; flex-direction:column; overflow:hidden; }
.modal-head { display:flex; align-items:center; justify-content:space-between; padding: 16px 20px; border-bottom:1px solid var(--line-soft); }
.modal-head h3 { font-family: var(--display); font-weight:500; font-size: 19px; margin:0; }
.modal-body { flex:1; min-height:0; position:relative; }
#graph { width:100%; height:100%; display:block; cursor: grab; }
.graph-node { cursor:pointer; }
.graph-node text { font-family: var(--mono); font-size: 11px; fill: var(--ink-soft); pointer-events:none; }
.graph-edge { stroke: var(--line); stroke-width: 1.2; }

.toast { position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%) translateY(40px); background: var(--ink); color: var(--paper); font-family: var(--mono); font-size: 12px; padding: 10px 16px; border-radius: 10px; z-index: 800; opacity:0; transition: .25s; pointer-events:none; box-shadow: var(--shadow); }
.toast.show { opacity:1; transform: translateX(-50%) translateY(0); }

.scrim { display:none; }

/* ---------- Mobile ---------- */
@media (max-width: 820px) {
  .app { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed; z-index: 300; top:0; bottom:0; left:0; width: 86%; max-width: 340px;
    transform: translateX(-103%); transition: transform .26s cubic-bezier(.4,0,.2,1);
    box-shadow: var(--shadow);
  }
  .app.nav-open .sidebar { transform: translateX(0); }
  .scrim { display:block; position:fixed; inset:0; background:rgba(20,16,10,.4); z-index:250; opacity:0; pointer-events:none; transition:.26s; }
  .app.nav-open .scrim { opacity:1; pointer-events:auto; }
  .hamburger { display:inline-flex; }
  .title-input { font-size: 19px; }
  .sheet { padding: 26px 20px 120px; }
  .reader { font-size: 18px; }
  .topbar { padding: 11px 14px; }
}

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--line); border-radius: 10px; border: 3px solid var(--paper); }
.sidebar ::-webkit-scrollbar-thumb { border-color: var(--paper-2); }

/* ---------- Login view (added for Raft auth) ---------- */
.login-view {
  position: fixed; inset: 0; z-index: 1000; background: var(--paper);
  display: none; place-items: center; padding: 24px;
}
.login-view.show { display: grid; }
.login-card { width: min(380px, 92vw); }
.login-card .brand { padding: 0 0 22px; justify-content: center; }
.login-card h2 {
  font-family: var(--display); font-weight: 500; font-size: 24px;
  margin: 0 0 4px; text-align: center; letter-spacing: -.01em;
}
.login-card .sub {
  font-family: var(--mono); font-size: 11px; letter-spacing: .04em;
  color: var(--ink-faint); text-align: center; margin-bottom: 22px;
}
.login-form { display: flex; flex-direction: column; gap: 12px; }
.login-form label {
  font-family: var(--mono); font-size: 10.5px; letter-spacing: .12em;
  text-transform: uppercase; color: var(--ink-faint); margin-bottom: -6px;
}
.login-form input {
  border: 1px solid var(--line); background: var(--paper-2); border-radius: 10px;
  padding: 11px 13px; font-family: var(--read); font-size: 15px; color: var(--ink);
  outline: none; transition: .15s;
}
.login-form input:focus { border-color: var(--accent); }
.login-form button {
  margin-top: 6px; border: 1px solid var(--accent); background: var(--accent);
  color: #fff; border-radius: 10px; padding: 12px; font-size: 13px;
  font-family: var(--mono); letter-spacing: .04em; transition: .15s;
}
.login-form button:hover { filter: brightness(1.06); }
.login-form button:disabled { opacity: .6; cursor: default; }
.login-error {
  color: var(--accent); font-family: var(--mono); font-size: 11.5px;
  min-height: 16px; text-align: center; margin-top: 4px;
}

/* ---------- Settings modal ---------- */
.settings-modal { height: auto; max-height: 86vh; width: min(520px, 92vw); }
.settings-body { overflow-y: auto; padding: 22px 24px 26px; }
.settings-section { margin-bottom: 26px; }
.settings-section:last-child { margin-bottom: 0; }
.settings-label {
  font-family: var(--mono); font-size: 10.5px; letter-spacing: .18em;
  text-transform: uppercase; color: var(--ink-faint); margin-bottom: 14px;
  padding-bottom: 8px; border-bottom: 1px solid var(--line-soft);
}
.settings-body .field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.settings-body .field label {
  font-family: var(--mono); font-size: 10.5px; letter-spacing: .1em;
  text-transform: uppercase; color: var(--ink-faint);
}
.settings-body .field input {
  border: 1px solid var(--line); background: var(--paper-2); border-radius: 10px;
  padding: 11px 13px; font-family: var(--read); font-size: 15px; color: var(--ink);
  outline: none; transition: .15s;
}
.settings-body .field input:focus { border-color: var(--accent); }
.settings-body .readonly {
  font-family: var(--mono); font-size: 13px; color: var(--ink-soft);
  padding: 4px 0;
}
.btn.primary.wide { flex: none; width: 100%; padding: 11px; }
.settings-msg { font-family: var(--mono); font-size: 11.5px; min-height: 16px; margin-top: 8px; }
.settings-msg.ok { color: var(--ink-soft); }
.settings-msg.err { color: var(--accent); }

/* ---------- Camera modal ---------- */
.camera-modal { width: min(560px, 94vw); height: auto; max-height: 92vh; }
.camera-body {
  padding: 0; background: #000; display: flex; align-items: center;
  justify-content: center; min-height: 280px; max-height: 64vh; overflow: hidden;
}
.camera-body video, .camera-body img {
  width: 100%; height: auto; max-height: 64vh; display: block; object-fit: contain;
}
.camera-error {
  color: var(--accent); font-family: var(--mono); font-size: 12px;
  text-align: center; padding: 0 18px;
}
.camera-error:not(:empty) { padding: 12px 18px; }
.camera-actions { display: flex; gap: 10px; padding: 14px 18px; justify-content: center; }

/* ---------- PWA / mobile polish ---------- */
html { -webkit-text-size-adjust: 100%; }
body { overscroll-behavior: none; }
button, .btn, .note-item, .chip, .backlink, a.wiki { -webkit-tap-highlight-color: transparent; }

/* Respect notches / rounded corners in standalone (installed) mode */
@supports (padding: max(0px)) {
  .topbar { padding-top: max(12px, env(safe-area-inset-top)); }
  .sidebar { padding-top: env(safe-area-inset-top); }
  .login-view {
    padding-top: max(24px, env(safe-area-inset-top));
    padding-bottom: max(24px, env(safe-area-inset-bottom));
  }
  @media (max-width: 820px) {
    .topbar {
      padding-left: max(14px, env(safe-area-inset-left));
      padding-right: max(14px, env(safe-area-inset-right));
    }
  }
}