:root{
  --ink-900:#12161d;
  --ink-800:#1b212b;
  --ink-700:#252d3a;
  --paper:#f6f1e2;
  --paper-shadow: 24 18 8;
  --rule-red:#a8433c;
  --rule-blue:#8ea6c9;
  --cream-line: rgba(18,22,29,0.08);
  --accent: #c9a24a;
  --text-on-paper:#242018;
  --muted: #9aa3b2;
  --muted-light: #cfd5e0;
}

*{ box-sizing:border-box; }
html,body{ margin:0; padding:0; }

body{
  background:
    radial-gradient(1200px 600px at 15% -10%, #232b38 0%, transparent 60%),
    radial-gradient(900px 500px at 110% 10%, #1e2632 0%, transparent 55%),
    linear-gradient(180deg, var(--ink-900), var(--ink-800) 40%, var(--ink-900));
  min-height:100vh;
  font-family:'JetBrains Mono', monospace;
  color:var(--muted-light);
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.001ms !important; transition-duration:0.001ms !important; }
}

/* ---------- Header ---------- */
header{
  max-width:1180px;
  margin:0 auto;
  padding:56px 28px 28px;
}
.eyebrow{
  font-size:11px;
  letter-spacing:0.28em;
  text-transform:uppercase;
  color:var(--accent);
  margin:0 0 10px;
  font-weight:500;
}
h1{
  font-family:'Fraunces', serif;
  font-style:italic;
  font-weight:600;
  font-size:clamp(38px, 6vw, 64px);
  color:#f3ede0;
  margin:0 0 6px;
  letter-spacing:-0.01em;
  line-height:1;
}
h1 .dot{ color:var(--accent); font-style:normal; }
.tagline{
  font-size:14px;
  color:var(--muted);
  max-width:480px;
  line-height:1.5;
  margin:0;
}

/* ---------- Capture bar ---------- */
.capture{
  max-width:1180px;
  margin:8px auto 0;
  padding:0 28px 8px;
}
.capture-card{
  background:var(--ink-700);
  border:1px solid rgba(255,255,255,0.06);
  border-radius:14px;
  padding:18px;
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  align-items:center;
  box-shadow: 0 20px 40px -24px rgba(0,0,0,0.6);
}
.capture-card input[type=text], .capture-card input[list], .capture-card input[type=email], .capture-card input[type=password]{
  background:var(--ink-800);
  border:1px solid rgba(255,255,255,0.08);
  color:#f0ece0;
  font-family:'JetBrains Mono', monospace;
  font-size:14px;
  padding:12px 14px;
  border-radius:9px;
  outline:none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.capture-card input::placeholder{ color:#6b7383; }
.capture-card input:focus{
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(201,162,74,0.18);
}
#titleInput{ flex:1 1 280px; min-width:200px; }
#topicInput{ flex:0 1 180px; }
.add-btn{
  background:var(--accent);
  color:#241d0a;
  border:none;
  font-family:'JetBrains Mono', monospace;
  font-weight:600;
  font-size:13px;
  letter-spacing:0.03em;
  padding:12px 20px;
  border-radius:9px;
  cursor:pointer;
  transition: transform 0.12s ease, background 0.15s ease;
}
.add-btn:hover{ background:#d9b35e; transform:translateY(-1px); }
.add-btn:focus-visible{ outline:2px solid #f0ece0; outline-offset:2px; }
.add-btn:active{ transform:translateY(0); }

/* ---------- Toolbar: search + filters ---------- */
.toolbar{
  max-width:1180px;
  margin:22px auto 0;
  padding:0 28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}
.search-wrap{
  position:relative;
  flex:0 1 280px;
}
#searchInput{
  width:100%;
  background:transparent;
  border:none;
  border-bottom:1px solid rgba(255,255,255,0.15);
  color:#f0ece0;
  font-family:'JetBrains Mono', monospace;
  font-size:13px;
  padding:8px 4px 8px 22px;
  outline:none;
}
#searchInput:focus{ border-bottom-color:var(--accent); }
#searchInput::placeholder{ color:#6b7383; }
.search-wrap::before{
  content:"⌕";
  position:absolute;
  left:0; top:6px;
  color:#6b7383;
  font-size:15px;
}
.chips{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
}
.chip{
  font-family:'JetBrains Mono', monospace;
  font-size:11px;
  letter-spacing:0.03em;
  text-transform:uppercase;
  padding:7px 12px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,0.12);
  background:transparent;
  color:var(--muted-light);
  cursor:pointer;
  transition: all 0.15s ease;
}
.chip:hover{ border-color:rgba(255,255,255,0.3); }
.chip.active{
  background:var(--accent);
  border-color:var(--accent);
  color:#241d0a;
}
.count{
  font-size:11px;
  color:var(--muted);
  letter-spacing:0.03em;
  white-space:nowrap;
}

/* ---------- Grid ---------- */
main{
  max-width:1180px;
  margin:0 auto;
  padding:30px 28px 100px;
}
.grid{
  column-width:270px;
  column-gap:22px;
}
.card-wrap{
  break-inside: avoid;
  margin-bottom:22px;
  display:inline-block;
  width:100%;
}

.card{
  position:relative;
  background: var(--paper);
  border-radius:3px 3px 6px 6px;
  padding:22px 18px 18px 30px;
  box-shadow:
    0 1px 0 rgba(255,255,255,0.5) inset,
    0 14px 26px -14px rgba(0,0,0,0.55),
    0 2px 6px rgba(0,0,0,0.25);
  transform: rotate(var(--rot));
  transition: transform 0.18s ease, box-shadow 0.18s ease;
  cursor:pointer;
}
.card:hover, .card:focus-within{
  transform: rotate(0deg) translateY(-3px);
  box-shadow:
    0 1px 0 rgba(255,255,255,0.5) inset,
    0 22px 34px -16px rgba(0,0,0,0.6),
    0 3px 8px rgba(0,0,0,0.3);
}

/* left red margin rule, classic index card */
.card::before{
  content:"";
  position:absolute;
  top:0; bottom:0; left:20px;
  width:1px;
  background: var(--rule-red);
  opacity:0.55;
}
/* ruled blue lines across body */
.card .rules{
  position:absolute;
  left:30px; right:16px; top:64px; bottom:16px;
  background-image: repeating-linear-gradient(
    to bottom,
    transparent 0,
    transparent 23px,
    var(--rule-blue) 24px
  );
  opacity:0.28;
  pointer-events:none;
}

.tab{
  position:absolute;
  top:-10px; right:14px;
  font-size:9.5px;
  letter-spacing:0.08em;
  text-transform:uppercase;
  font-weight:600;
  padding:5px 10px 4px;
  border-radius:3px 3px 0 0;
  box-shadow: 0 -1px 3px rgba(0,0,0,0.15);
  max-width:70%;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}

.card-title{
  font-family:'Fraunces', serif;
  font-weight:600;
  font-size:18px;
  color:var(--text-on-paper);
  margin:0 0 10px;
  line-height:1.25;
  position:relative;
  padding-right:20px;
}
.card-body{
  font-family:'JetBrains Mono', monospace;
  font-size:12.5px;
  line-height:24px;
  color:#3b3527;
  position:relative;
  min-height:24px;
  white-space:pre-wrap;
}
.card-body.empty{
  color:#8c8264;
  font-style:italic;
}
.card-date{
  position:relative;
  margin-top:12px;
  font-size:10px;
  letter-spacing:0.04em;
  color:#8c8264;
  text-transform:uppercase;
}
.del-btn{
  position:absolute;
  top:14px; right:10px;
  z-index:2;
  background:none;
  border:none;
  color:#8c8264;
  font-size:15px;
  line-height:1;
  cursor:pointer;
  opacity:0;
  transition: opacity 0.15s ease, color 0.15s ease;
  padding:2px 4px;
}
.card:hover .del-btn, .card:focus-within .del-btn{ opacity:1; }
.del-btn:hover{ color:var(--rule-red); }
.del-btn:focus-visible{ opacity:1; outline:1px solid var(--rule-red); }

/* expanded editing state */
.card.editing .card-body-view{ display:none; }
.edit-area{
  display:none;
  position:relative;
  width:100%;
  resize:vertical;
  min-height:90px;
  background:transparent;
  border:none;
  font-family:'JetBrains Mono', monospace;
  font-size:12.5px;
  line-height:24px;
  color:#3b3527;
  outline:none;
  padding:0;
}
.card.editing .edit-area{ display:block; }
.edit-title{
  display:none;
  width:100%;
  background:transparent;
  border:none;
  border-bottom:1px dashed rgba(0,0,0,0.2);
  font-family:'Fraunces', serif;
  font-weight:600;
  font-size:18px;
  color:var(--text-on-paper);
  outline:none;
  padding:0 0 4px;
  margin:0 0 10px;
}
.card.editing .edit-title{ display:block; }
.card.editing .title-view{ display:none; }

.edit-hint{
  display:none;
  font-size:10px;
  color:#8c8264;
  margin-top:8px;
  letter-spacing:0.03em;
}
.card.editing .edit-hint{ display:block; }

/* ---------- Empty state ---------- */
.empty-state{
  max-width:1180px;
  margin:60px auto;
  padding:0 28px;
  text-align:center;
  color:var(--muted);
}
.empty-state .glyph{
  font-family:'Fraunces', serif;
  font-style:italic;
  font-size:40px;
  color:#3a4252;
  margin-bottom:10px;
}
.empty-state p{ font-size:13px; max-width:360px; margin:0 auto; line-height:1.6; }

footer{
  text-align:center;
  padding:20px 28px 40px;
  font-size:10.5px;
  color:#4a5162;
  letter-spacing:0.04em;
}

@media (max-width:520px){
  .grid{ column-width:100%; }
  header{ padding:40px 18px 20px; }
  .toolbar, .capture, main{ padding-left:18px; padding-right:18px; }
}

/* ---------- Account bar ---------- */
.account-bar{
  max-width:1180px;
  margin:0 auto;
  padding:0 28px;
  display:flex;
  justify-content:flex-end;
}
.account-status{
  font-size:11px;
  color:var(--muted);
  letter-spacing:0.03em;
  display:flex;
  align-items:center;
  gap:10px;
}
.account-link{
  background:none;
  border:none;
  color:var(--accent);
  font-family:'JetBrains Mono', monospace;
  font-size:11px;
  letter-spacing:0.03em;
  cursor:pointer;
  padding:0;
}
.account-link:hover{ text-decoration:underline; }

.auth-card{
  max-width:280px;
  margin-top:8px;
  flex-direction:column;
  align-items:stretch;
}
.auth-card #authForm{
  display:flex;
  flex-direction:column;
  align-items:stretch;
  gap:10px;
  width:100%;
}
.auth-card #authForm input{ width:100%; }
.auth-card .add-btn{ width:100%; }
.auth-tabs{
  display:flex;
  gap:6px;
  margin-bottom:4px;
}
.auth-tab{
  flex:1;
  background:transparent;
  border:1px solid rgba(255,255,255,0.12);
  color:var(--muted-light);
  font-family:'JetBrains Mono', monospace;
  font-size:11px;
  letter-spacing:0.03em;
  text-transform:uppercase;
  padding:6px 8px;
  border-radius:7px;
  cursor:pointer;
}
.auth-tab.active{
  background:var(--accent);
  border-color:var(--accent);
  color:#241d0a;
}
.auth-links{
  display:flex;
  justify-content:space-between;
  align-items:center;
}
.auth-error{
  color:var(--rule-red);
  font-size:11px;
  margin:0;
}
.auth-status-msg{
  color:var(--rule-blue);
  font-size:11px;
  margin:0;
}