/* ════════════════════════════════════════════
   WORKSPACE — stylesheet
   Old-school refined: typewriter + ledger feel
   ════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Special+Elite&family=Courier+Prime:ital,wght@0,400;0,700;1,400&family=IM+Fell+English:ital@0;1&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --paper:      #f5f0e8;
  --paper2:     #ede8dc;
  --paper3:     #e4ddd0;
  --ink:        #1a1510;
  --ink-mid:    #4a4035;
  --ink-faint:  #8a7d6a;
  --rule:       #c8bfaa;
  --rule-dark:  #a09080;
  --red:        #8b1a1a;
  --green-bg:   #1a3a1a;
  --green-fg:   #4a8a4a;
  --modal-bg:   rgba(10,8,5,.55);
  --radius:     3px;
  --sw:         222px;
  --font-mono:    'Courier Prime', monospace;
  --font-display: 'Special Elite', monospace;
  --font-serif:   'IM Fell English', serif;
}

body.dark {
  --paper:      #110f0c;
  --paper2:     #181410;
  --paper3:     #201c17;
  --ink:        #d4cfc5;
  --ink-mid:    #8a8070;
  --ink-faint:  #504840;
  --rule:       #2a2520;
  --rule-dark:  #3a342c;
  --red:        #c04040;
  --green-bg:   #0a1a0a;
  --green-fg:   #40a040;
  --modal-bg:   rgba(0,0,0,.72);
}

body {
  font-family: var(--font-mono);
  background: var(--paper);
  color: var(--ink);
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: background .25s, color .25s;
  background-image: repeating-linear-gradient(
    0deg, transparent, transparent 23px,
    rgba(150,130,100,.055) 23px, rgba(150,130,100,.055) 24px
  );
}

/* ── Scrollbar ─────────────────────────── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--rule-dark); border-radius: 2px; }

/* ═══════════════════════════════════════
   AUTH SCREEN
   ═══════════════════════════════════════ */
#auth-screen {
  position: fixed; inset: 0;
  background: var(--paper);
  background-image: repeating-linear-gradient(
    0deg, transparent, transparent 23px,
    rgba(150,130,100,.07) 23px, rgba(150,130,100,.07) 24px
  );
  display: flex; align-items: center; justify-content: center;
  z-index: 1000;
  transition: background .25s;
}

.auth-card {
  background: var(--paper2);
  border: 1px solid var(--rule-dark);
  border-bottom: 3px solid var(--rule-dark);
  border-right: 2px solid var(--rule-dark);
  border-radius: var(--radius);
  padding: 36px 32px 28px;
  width: 385px;
  display: flex; flex-direction: column; gap: 16px;
  box-shadow: 4px 4px 0 rgba(0,0,0,.13);
}

.auth-logo {
  font-family: var(--font-display);
  font-size: 26px;
  color: var(--ink);
  text-align: center;
  letter-spacing: 3px;
  border-bottom: 2px solid var(--rule-dark);
  padding-bottom: 12px;
}

.auth-logo .logo-sub {
  display: block;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-top: 4px;
}

.auth-tab-row {
  display: flex;
  border: 1px solid var(--rule-dark);
  border-radius: var(--radius);
  overflow: hidden;
}

.auth-tab {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 1px; text-transform: uppercase;
  padding: 8px;
  border: none; background: transparent; color: var(--ink-faint);
  cursor: pointer; transition: all .15s;
}

.auth-tab.active { background: var(--ink); color: var(--paper); }
.auth-tab:hover:not(.active) { background: var(--paper3); color: var(--ink-mid); }

.auth-pane { display: flex; flex-direction: column; gap: 12px; }

.auth-field { display: flex; flex-direction: column; gap: 5px; }

.auth-label {
  font-size: 9px; letter-spacing: 2px; text-transform: uppercase;
  color: var(--ink-faint);
}

.auth-input {
  font-family: var(--font-mono); font-size: 13px;
  padding: 9px 11px;
  border: 1px solid var(--rule-dark);
  border-radius: var(--radius);
  background: var(--paper); color: var(--ink);
  outline: none; transition: border-color .15s;
}

.auth-input:focus { border-color: var(--ink-mid); }

.auth-btn {
  font-family: var(--font-display);
  font-size: 13px; letter-spacing: 1px;
  padding: 11px;
  border: 2px solid var(--ink);
  background: var(--ink); color: var(--paper);
  cursor: pointer; border-radius: var(--radius);
  transition: all .15s;
  display: flex; align-items: center; justify-content: center; gap: 8px;
}

.auth-btn:hover { background: var(--ink-mid); border-color: var(--ink-mid); }
.auth-btn:disabled { opacity: .5; cursor: not-allowed; }

.auth-error {
  font-size: 11px; color: var(--red);
  min-height: 15px; font-style: italic;
}

.spinner {
  width: 13px; height: 13px;
  border: 2px solid rgba(255,255,255,.3);
  border-top-color: #fff; border-radius: 50%;
  animation: spin .6s linear infinite; flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ═══════════════════════════════════════
   TOP BAR
   ═══════════════════════════════════════ */
.topbar {
  display: flex; align-items: center; gap: 0;
  border-bottom: 2px solid var(--rule-dark);
  background: var(--paper2); flex-shrink: 0;
  height: 43px; padding: 0 14px;
}

.app-title {
  font-family: var(--font-display);
  font-size: 16px; letter-spacing: 3px; color: var(--ink);
  margin-right: 0; white-space: nowrap;
  border-right: 1px solid var(--rule);
  padding-right: 14px; margin-right: 0;
}

.mode-btn {
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: 1px; text-transform: uppercase;
  padding: 0 14px;
  border: none;
  border-right: 1px solid var(--rule);
  background: transparent; color: var(--ink-faint);
  cursor: pointer; height: 100%; transition: all .13s;
}

.mode-btn:hover:not(.active) { background: var(--paper3); color: var(--ink-mid); }
.mode-btn.active { background: var(--ink); color: var(--paper); font-weight: 700; }

.tb-sp { flex: 1; }

.ss {
  font-size: 9px; letter-spacing: .5px;
  color: var(--ink-faint); margin-right: 10px;
  white-space: nowrap;
}

.tb-user {
  font-size: 10px; letter-spacing: 1px; text-transform: uppercase;
  color: var(--ink-faint);
  padding: 0 12px;
  border-left: 1px solid var(--rule);
  border-right: 1px solid var(--rule);
  height: 100%; display: flex; align-items: center;
}

.th-tog {
  display: flex; align-items: center; gap: 6px;
  cursor: pointer; user-select: none;
  padding: 0 10px;
  height: 100%;
  border-right: 1px solid var(--rule);
}

.th-lbl {
  font-size: 9px; letter-spacing: 1px; text-transform: uppercase;
  color: var(--ink-faint); white-space: nowrap;
}

.tog-tr {
  width: 28px; height: 15px;
  background: var(--paper3);
  border: 1px solid var(--rule-dark);
  border-radius: 9px; position: relative;
  transition: background .2s;
}

.tog-tr.on { background: var(--ink-mid); }

.tog-th {
  position: absolute; top: 2px; left: 2px;
  width: 9px; height: 9px;
  background: var(--ink-faint); border-radius: 50%;
  transition: left .18s;
}

.tog-tr.on .tog-th { left: 15px; background: var(--paper); }

.tb-btn {
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: 1px; text-transform: uppercase;
  padding: 5px 10px;
  border: 1px solid var(--rule-dark);
  background: transparent; color: var(--ink-mid);
  cursor: pointer; border-radius: var(--radius);
  margin-left: 7px; transition: all .13s; white-space: nowrap;
}

.tb-btn:hover { background: var(--paper3); border-color: var(--ink-mid); color: var(--ink); }
.tb-btn.danger { border-color: var(--red); color: var(--red); }
.tb-btn.danger:hover { background: var(--red); color: var(--paper); }

/* ═══════════════════════════════════════
   MAIN LAYOUT
   ═══════════════════════════════════════ */
.main { display: flex; flex: 1; overflow: hidden; }

/* ═══════════════════════════════════════
   NOTEBOOK
   ═══════════════════════════════════════ */
#notebook-view { display: flex; flex: 1; overflow: hidden; }

.nb-sidebar {
  width: var(--sw);
  border-right: 2px solid var(--rule-dark);
  background: var(--paper2);
  display: flex; flex-direction: column; flex-shrink: 0;
}

.nb-sh {
  padding: 10px 12px 8px;
  border-bottom: 1px solid var(--rule);
  display: flex; align-items: center; justify-content: space-between;
}

.nb-st {
  font-size: 9px; letter-spacing: 2px; text-transform: uppercase;
  color: var(--ink-faint);
}

.ic-btn {
  width: 22px; height: 22px;
  border: 1px solid var(--rule-dark); border-radius: var(--radius);
  background: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  color: var(--ink-mid); font-size: 17px; line-height: 1;
  transition: all .12s;
}

.ic-btn:hover { background: var(--paper3); border-color: var(--ink-mid); color: var(--ink); }

.nb-tl { flex: 1; overflow-y: auto; padding: 4px 0; }

.nb-tab {
  display: flex; align-items: center;
  padding: 7px 12px; cursor: pointer;
  font-size: 11px; color: var(--ink-mid); gap: 7px;
  transition: background .1s; user-select: none;
  border-bottom: 1px solid var(--rule);
}

.nb-tab:hover { background: var(--paper3); color: var(--ink); }
.nb-tab.active { background: var(--paper3); color: var(--ink); border-left: 3px solid var(--ink); }
.nb-tab .tn { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.nb-tab .td { opacity: 0; font-size: 14px; color: var(--ink-faint); background: none; border: none; cursor: pointer; padding: 0 2px; }
.nb-tab:hover .td { opacity: 1; }
.nb-tab .td:hover { color: var(--red); }

.nb-ed { flex: 1; display: flex; flex-direction: column; overflow: hidden; }

.nb-eh {
  padding: 12px 20px 10px;
  border-bottom: 1px solid var(--rule);
  background: var(--paper2);
}

.nb-ti {
  font-family: var(--font-serif); font-size: 20px;
  border: none; outline: none;
  background: transparent; color: var(--ink); width: 100%;
}

.nb-ti::placeholder { color: var(--ink-faint); font-style: italic; }

.nb-tb {
  padding: 5px 18px;
  border-bottom: 1px solid var(--rule);
  display: flex; align-items: center; gap: 1px; flex-wrap: wrap;
  background: var(--paper2);
}

.tb-b {
  font-family: var(--font-mono); font-size: 10px;
  padding: 3px 8px;
  border: 1px solid transparent; border-radius: var(--radius);
  background: none; cursor: pointer; color: var(--ink-mid);
  transition: all .12s;
}

.tb-b:hover { background: var(--paper3); color: var(--ink); border-color: var(--rule-dark); }

.tb-s { width: 1px; height: 14px; background: var(--rule-dark); margin: 0 3px; }

.nb-hint {
  padding: 3px 20px; border-bottom: 1px solid var(--rule);
  background: var(--paper2); font-size: 9px; color: var(--ink-faint); letter-spacing: .4px;
}

.nb-cnt {
  flex: 1; overflow-y: auto; padding: 20px 28px;
  background: var(--paper);
  background-image: repeating-linear-gradient(
    0deg, transparent, transparent 27px,
    rgba(150,130,100,.055) 27px, rgba(150,130,100,.055) 28px
  );
}

.nb-ca {
  min-height: 100%;
  font-family: var(--font-serif); font-size: 15px; line-height: 1.9;
  color: var(--ink); outline: none; border: none;
  background: transparent; width: 100%;
}

.nb-ca h2 { font-family: var(--font-display); letter-spacing: 1px; margin: 1em 0 .4em; }
.nb-ca blockquote { border-left: 3px solid var(--rule-dark); padding-left: 12px; color: var(--ink-mid); font-style: italic; }
.nb-ca pre { font-family: var(--font-mono); font-size: 12px; background: var(--paper2); padding: 10px; border: 1px solid var(--rule); border-radius: var(--radius); overflow-x: auto; }
.nb-ca hr { border: none; border-top: 1px solid var(--rule-dark); margin: 16px 0; }

.nb-empty {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  height: 100%; color: var(--ink-faint); font-size: 12px; gap: 8px;
  background: var(--paper); font-style: italic;
}

/* Images */
.iw { display: inline-block; position: relative; margin: 6px 4px; cursor: default; line-height: 0; vertical-align: top; }
.iw img { display: block; border-radius: 2px; max-width: 100%; border: 1px solid var(--rule); }
.iw.sel { outline: 2px solid var(--ink); outline-offset: 2px; }
.iw .rh { position: absolute; width: 9px; height: 9px; background: var(--ink); display: none; z-index: 10; }
.iw.sel .rh { display: block; }
.rh.se { bottom: -4px; right: -4px; cursor: se-resize; }
.rh.sw { bottom: -4px; left: -4px; cursor: sw-resize; }
.rh.ne { top: -4px; right: -4px; cursor: ne-resize; }
.rh.nw { top: -4px; left: -4px; cursor: nw-resize; }
.itb { position: absolute; top: -28px; left: 50%; transform: translateX(-50%); background: var(--ink); color: var(--paper); border-radius: var(--radius); padding: 2px 5px; display: none; gap: 3px; white-space: nowrap; z-index: 20; }
.iw.sel .itb { display: flex; }
.itb-b { font-family: var(--font-mono); font-size: 9px; padding: 2px 6px; border-radius: 2px; border: none; background: rgba(255,255,255,.15); color: inherit; cursor: pointer; }
.itb-b:hover { background: rgba(255,255,255,.3); }

/* ═══════════════════════════════════════
   TASKS
   ═══════════════════════════════════════ */
#task-view { display: none; flex: 1; flex-direction: column; overflow: hidden; }

.tl { display: flex; flex: 1; overflow: hidden; }

.tm {
  flex: 1; overflow-y: auto; padding: 24px 32px;
  max-width: 600px; margin: 0 auto; width: 100%;
}

.ta-box {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 12px;
  border: 1px solid var(--rule-dark);
  border-bottom: 2px solid var(--rule-dark);
  background: var(--paper2); margin-bottom: 24px;
  border-radius: var(--radius);
}

.ta-inp { flex: 1; border: none; outline: none; font-family: var(--font-mono); font-size: 12px; background: transparent; color: var(--ink); }
.ta-inp::placeholder { color: var(--ink-faint); }

.ta-sel {
  font-family: var(--font-mono); font-size: 10px;
  border: 1px solid var(--rule-dark); border-radius: var(--radius);
  padding: 4px 6px; background: var(--paper); color: var(--ink-mid); outline: none; cursor: pointer;
}

.ta-btn {
  font-family: var(--font-display); font-size: 11px; letter-spacing: 1px;
  padding: 5px 14px;
  border: 2px solid var(--ink); background: var(--ink); color: var(--paper);
  cursor: pointer; border-radius: var(--radius); transition: opacity .12s;
}

.ta-btn:hover { opacity: .8; }

.ts-lbl {
  font-size: 9px; letter-spacing: 2.5px; text-transform: uppercase;
  color: var(--ink-faint); margin-bottom: 8px;
  border-bottom: 1px solid var(--rule); padding-bottom: 4px;
}

.t-list { display: flex; flex-direction: column; gap: 4px; margin-bottom: 24px; }

.t-item {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 9px 11px;
  border: 1px solid var(--rule);
  border-bottom: 2px solid var(--rule);
  background: var(--paper2); border-radius: var(--radius);
  transition: border-color .12s;
}

.t-item:hover { border-color: var(--rule-dark); }
.t-item.done { opacity: .5; }

.t-chk {
  width: 15px; height: 15px;
  border: 1.5px solid var(--rule-dark); border-radius: 2px;
  background: none; cursor: pointer; flex-shrink: 0; margin-top: 1px;
  transition: all .12s; display: flex; align-items: center; justify-content: center;
  font-size: 9px; color: transparent;
}

.t-chk:hover { border-color: var(--ink-mid); }
.t-item.done .t-chk { background: var(--ink); border-color: var(--ink); color: var(--paper); }

.t-body { flex: 1; }
.t-txt { font-size: 12px; line-height: 1.5; color: var(--ink); }
.t-item.done .t-txt { text-decoration: line-through; color: var(--ink-faint); }
.t-meta { display: flex; align-items: center; gap: 7px; margin-top: 3px; }

.t-tag {
  font-size: 9px; letter-spacing: 1px; text-transform: uppercase;
  padding: 1px 6px; border-radius: 2px;
}

.t-tag.hi { border: 1px solid var(--red); color: var(--red); }
.t-tag.md { border: 1px solid var(--ink-mid); color: var(--ink-mid); }
.t-tag.lo { border: 1px solid var(--rule-dark); color: var(--ink-faint); }

.t-date { font-size: 9px; color: var(--ink-faint); }

.t-del { background: none; border: none; cursor: pointer; color: var(--ink-faint); font-size: 14px; padding: 1px 3px; opacity: 0; transition: opacity .1s; align-self: center; }
.t-item:hover .t-del { opacity: 1; }
.t-del:hover { color: var(--red); }

/* ═══════════════════════════════════════
   MODALS
   ═══════════════════════════════════════ */
.mo {
  position: fixed; inset: 0; background: var(--modal-bg);
  display: flex; align-items: center; justify-content: center;
  z-index: 500; opacity: 0; pointer-events: none; transition: opacity .16s;
}

.mo.open { opacity: 1; pointer-events: auto; }

.mb {
  background: var(--paper2);
  border: 1px solid var(--rule-dark);
  border-bottom: 3px solid var(--rule-dark);
  border-right: 2px solid var(--rule-dark);
  border-radius: var(--radius);
  padding: 26px 26px 20px; width: 310px;
  display: flex; flex-direction: column; gap: 12px;
  box-shadow: 4px 4px 0 rgba(0,0,0,.15);
}

.mt {
  font-family: var(--font-display); font-size: 16px; letter-spacing: 1px;
  color: var(--ink); border-bottom: 1px solid var(--rule); padding-bottom: 8px;
}

.ms { font-size: 11px; color: var(--ink-faint); margin-top: -4px; line-height: 1.5; font-style: italic; }
.mf { display: flex; flex-direction: column; gap: 4px; }
.ml { font-size: 9px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--ink-faint); }

.mi {
  font-family: var(--font-mono); font-size: 12px;
  padding: 8px 10px;
  border: 1px solid var(--rule-dark); border-radius: var(--radius);
  background: var(--paper); color: var(--ink); outline: none; transition: border-color .15s;
}

.mi:focus { border-color: var(--ink-mid); }

.ma { display: flex; gap: 7px; justify-content: flex-end; }

.m-btn {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 1px; text-transform: uppercase;
  padding: 7px 14px;
  border: 1px solid var(--rule-dark); background: transparent; color: var(--ink-mid);
  cursor: pointer; border-radius: var(--radius); transition: all .12s;
}

.m-btn:hover { background: var(--paper3); color: var(--ink); }
.m-btn.pr { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.m-btn.pr:hover { background: var(--ink-mid); border-color: var(--ink-mid); }
.m-btn.dr { border-color: var(--red); color: var(--red); }
.m-btn.dr:hover { background: var(--red); color: var(--paper); }
.m-err { font-size: 11px; color: var(--red); min-height: 14px; font-style: italic; }

/* ═══════════════════════════════════════
   TOAST
   ═══════════════════════════════════════ */
.toast {
  position: fixed; bottom: 20px; right: 20px;
  background: var(--ink); color: var(--paper);
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .5px;
  padding: 8px 16px; border-radius: var(--radius);
  z-index: 2000; opacity: 0; transform: translateY(8px);
  transition: all .2s; pointer-events: none;
}

.toast.show { opacity: 1; transform: translateY(0); }

#img-input { display: none; }