/* Voltiq Habit — dark, square, tile-first. No frameworks. */

:root{
  --bg:#0b0d10;
  --bg2:#111419;
  --panel:#151920;
  --panel2:#1b2028;
  --line:#262d37;
  --line2:#333b47;
  --ink:#e8edf4;
  --ink2:#9aa5b4;
  --ink3:#6b7684;
  --accent:#5ef0a8;
  --accent-ink:#04140c;
  --danger:#ff6b81;
  --warn:#ffd166;
  --r:6px;
  --cell-empty:#1a1f27;
  --gap:3px;
  --tap:44px;
}

*{box-sizing:border-box}
/* author-level `display` on an element would otherwise beat the UA stylesheet's
   [hidden]{display:none} — this keeps the hidden attribute authoritative */
[hidden]{display:none !important}
html,body{margin:0;padding:0}
body{
  background:var(--bg);
  color:var(--ink);
  font:15px/1.5 ui-monospace,SFMono-Regular,Menlo,Consolas,"Cascadia Mono",monospace;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
  padding-bottom:64px;
}
button{font:inherit;color:inherit;cursor:pointer}
h1,h2,h3,p{margin:0}

/* ---------- top bar ---------- */
.topbar{
  position:sticky;top:0;z-index:30;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px 20px;
  background:color-mix(in srgb,var(--bg) 88%,transparent);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  flex-wrap:wrap;
}
.brand{display:flex;align-items:center;gap:10px}
.mark{
  display:grid;grid-template-columns:repeat(3,6px);grid-auto-rows:6px;gap:2px;
}
.mark i{background:var(--line2);border-radius:1px}
.mark i.on{background:var(--accent)}
.brand-name{font-weight:700;letter-spacing:-.02em;font-size:16px}
.brand-sub{color:var(--ink3);font-size:12px;text-transform:uppercase;letter-spacing:.14em}

.controls{display:flex;align-items:center;gap:10px;flex-wrap:wrap}

.segmented{display:flex;background:var(--panel);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.segmented button{
  background:none;border:0;padding:8px 11px;color:var(--ink3);font-size:15px;line-height:1;
  border-right:1px solid var(--line);
}
.segmented button:last-child{border-right:0}
.segmented button:hover{color:var(--ink);background:var(--panel2)}
.segmented button[aria-pressed="true"]{background:var(--accent);color:var(--accent-ink)}

.yearpick{display:flex;align-items:center;background:var(--panel);border:1px solid var(--line);border-radius:var(--r)}
.yearpick button{background:none;border:0;padding:8px 10px;color:var(--ink2);font-size:16px;line-height:1}
.yearpick button:hover:not(:disabled){color:var(--accent)}
.yearpick button:disabled{opacity:.3;cursor:not-allowed}
.yearpick span{min-width:52px;text-align:center;font-size:13px;color:var(--ink2)}

.btn-primary{
  background:var(--accent);color:var(--accent-ink);border:0;border-radius:var(--r);
  padding:9px 15px;font-weight:700;letter-spacing:-.01em;
}
.btn-primary:hover{filter:brightness(1.08)}
.icon-btn{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:8px 11px;color:var(--ink2)}
.icon-btn:hover{color:var(--ink);border-color:var(--line2)}

/* ---------- board ---------- */
.board{
  max-width:1180px;margin:0 auto;padding:22px 20px;
  display:grid;gap:16px;
  grid-template-columns:repeat(auto-fill,minmax(330px,1fr));
  align-content:start;
}
.board.empty{display:block}

.card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:10px;
  padding:14px;
  display:flex;flex-direction:column;gap:11px;
  transition:border-color .15s;
}
.card:hover{border-color:var(--line2)}

/* --- card header --- */
.card-hd{display:flex;align-items:center;gap:11px}
.tap-today{
  width:var(--tap);height:var(--tap);min-width:var(--tap);
  border-radius:8px;border:2px solid var(--line2);
  background:var(--cell-empty);
  display:grid;place-items:center;font-size:18px;line-height:1;
  color:var(--ink3);
  transition:transform .08s,border-color .12s,background .12s;
}
.tap-today:hover{border-color:var(--c,var(--accent))}
.tap-today:active{transform:scale(.93)}
.tap-today.on{
  background:var(--c);border-color:var(--c);color:#0b0d10;
  box-shadow:0 0 0 3px color-mix(in srgb,var(--c) 22%,transparent);
}
.hd-main{flex:1;min-width:0}
.hd-name{
  font-size:15px;font-weight:700;letter-spacing:-.01em;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.chips{display:flex;gap:6px;flex-wrap:wrap;margin-top:5px}
.chip{
  font-size:11px;padding:2px 7px;border-radius:99px;
  background:var(--panel2);color:var(--ink2);border:1px solid var(--line);
  white-space:nowrap;
}
.chip.hot{color:var(--warn);border-color:color-mix(in srgb,var(--warn) 35%,transparent)}
.chip.done{color:var(--accent);border-color:color-mix(in srgb,var(--accent) 35%,transparent)}
.chip.avoid{color:var(--ink2)}

.more-btn{
  background:none;border:1px solid transparent;border-radius:6px;
  color:var(--ink3);padding:5px 8px;font-size:15px;line-height:1;
}
.more-btn:hover{color:var(--ink);border-color:var(--line)}

/* --- year heatmap --- */
.hm{display:flex;gap:5px;align-items:stretch}
.gutter{
  display:grid;grid-template-rows:repeat(7,1fr);
  font-size:9px;color:var(--ink3);width:11px;text-align:center;
  line-height:1;user-select:none;
}
.gutter span{display:grid;place-items:center}
.hm-grid{
  flex:1;min-width:0;
  display:grid;grid-auto-flow:column;
  grid-template-rows:repeat(7,auto);
  gap:2px;
}
.hm-grid .cell{
  aspect-ratio:1;border-radius:2px;background:var(--cell-empty);
  min-width:0;cursor:pointer;position:relative;
}
.hm-grid .cell.on{background:var(--c)}
.hm-grid .cell.dim{background:#12161c;cursor:default}
.hm-grid .cell.today{outline:1.5px solid var(--ink2);outline-offset:1px}
.hm-grid .cell:hover:not(.dim){outline:1.5px solid var(--line2);outline-offset:1px}
.hm-months{
  display:flex;font-size:9px;color:var(--ink3);
  margin-left:16px;height:13px;align-items:end;user-select:none;
}
.hm-months span{overflow:hidden;white-space:nowrap}

/* --- today strip (checklist / compact) --- */
.strip{display:flex;gap:3px;align-items:center}
.strip .cell{
  width:15px;height:15px;border-radius:3px;background:var(--cell-empty);cursor:pointer;
  border:1px solid transparent;
}
.strip .cell.on{background:var(--c)}
.strip .cell.today{border-color:var(--ink3)}
.strip .cell.dim{background:#12161c;cursor:default}
.strip .lbl{font-size:10px;color:var(--ink3);margin-right:5px;letter-spacing:.06em}

.big-tap{
  width:100%;min-height:56px;border-radius:8px;
  border:2px dashed var(--line2);background:transparent;
  display:flex;align-items:center;justify-content:center;gap:9px;
  color:var(--ink2);font-size:14px;transition:.12s;
}
.big-tap:hover{border-color:var(--c);color:var(--ink)}
.big-tap.on{
  background:color-mix(in srgb,var(--c) 16%,transparent);
  border:2px solid var(--c);color:var(--ink);border-style:solid;
}

.row{display:flex;gap:12px;align-items:center}
.row .hd-main{flex:1}

/* --- compact --- */
.board.compact{grid-template-columns:1fr;gap:8px}
.card.compact{
  flex-direction:row;align-items:center;gap:12px;padding:10px 14px;min-height:52px;
}
.card.compact .tap-today{width:32px;height:32px;min-width:32px;font-size:14px;border-radius:6px}
.card.compact .strip .cell{width:13px;height:13px}

/* --- checklist variant --- */
.card.check .hd-main{flex:1}
.card.check .strip-wrap{display:flex;align-items:center;gap:8px}

/* --- detail view --- */
.detail-head{display:flex;align-items:center;gap:14px;margin-bottom:4px}
.detail-icon{
  width:52px;height:52px;border-radius:10px;display:grid;place-items:center;
  font-size:24px;background:var(--panel2);border:2px solid var(--c);
}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:16px 0}
.stat{background:var(--panel2);border:1px solid var(--line);border-radius:8px;padding:10px}
.stat .k{font-size:10px;color:var(--ink3);text-transform:uppercase;letter-spacing:.08em}
.stat .v{font-size:19px;font-weight:700;margin-top:3px}
.bars{display:flex;gap:4px;align-items:flex-end;height:64px;margin-top:6px}
.bars .b{flex:1;background:var(--c);border-radius:2px 2px 0 0;min-height:2px;opacity:.85}
.bars .b.zero{background:var(--line);min-height:2px}
.bar-lbls{display:flex;gap:4px;font-size:9px;color:var(--ink3);margin-top:4px}
.bar-lbls span{flex:1;text-align:center}
.actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}
.btn{
  background:var(--panel2);border:1px solid var(--line2);border-radius:var(--r);
  padding:8px 13px;color:var(--ink);font-size:13px;
}
.btn:hover{border-color:var(--accent);color:var(--accent)}
.btn.ghost{background:transparent;border-color:var(--line);color:var(--ink3)}
.btn.ghost:hover{border-color:var(--ink3);color:var(--ink2)}
.btn.danger{border-color:color-mix(in srgb,var(--danger) 45%,transparent);color:var(--danger)}
.btn.danger:hover{background:color-mix(in srgb,var(--danger) 14%,transparent)}
.btn.solid{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);font-weight:700}

/* ---------- empty state / onboarding ---------- */
.empty{
  max-width:660px;margin:6vh auto 0;padding:0 20px;text-align:center;
}
.empty .glyph{
  display:inline-grid;grid-template-columns:repeat(7,17px);gap:4px;margin-bottom:26px;
}
.empty .glyph i{width:17px;height:17px;border-radius:3px;background:var(--cell-empty)}
.empty .glyph i.f{background:var(--accent)}
.empty h1{font-size:30px;letter-spacing:-.03em;line-height:1.2}
.empty h1 em{font-style:normal;color:var(--accent)}
.empty p{color:var(--ink2);margin-top:14px;font-size:15px;line-height:1.7}
.empty .steps{
  display:flex;gap:10px;justify-content:center;margin:26px 0;flex-wrap:wrap;
}
.empty .step{
  background:var(--panel);border:1px solid var(--line);border-radius:8px;
  padding:11px 15px;font-size:13px;color:var(--ink2);text-align:left;
}
.empty .step b{display:block;color:var(--ink);font-size:14px;margin-bottom:2px}
.empty .cta{margin-top:8px}
.empty .hint{font-size:12px;color:var(--ink3);margin-top:16px}

/* ---------- modal ---------- */
.modal-root{
  position:fixed;inset:0;z-index:100;
  background:rgba(4,6,9,.74);backdrop-filter:blur(3px);
  display:grid;place-items:center;padding:18px;
  animation:fade .12s ease-out;
}
@keyframes fade{from{opacity:0}to{opacity:1}}
.modal{
  background:var(--bg2);border:1px solid var(--line2);border-radius:14px;
  width:100%;max-width:520px;max-height:88vh;overflow:auto;
  padding:22px;animation:pop .14s cubic-bezier(.2,.9,.3,1.3);
}
.modal.wide{max-width:700px}
@keyframes pop{from{opacity:0;transform:translateY(10px) scale(.98)}to{opacity:1;transform:none}}
.modal h2{font-size:19px;letter-spacing:-.02em;margin-bottom:4px}
.modal .sub{color:var(--ink3);font-size:13px;margin-bottom:18px}

.field{margin-bottom:16px}
.field > label,.lbl{
  display:block;font-size:11px;text-transform:uppercase;letter-spacing:.1em;
  color:var(--ink3);margin-bottom:7px;
}
input[type=text],input[type=number],input[type=date],input[type=time],select,textarea{
  width:100%;background:var(--panel);border:1px solid var(--line2);border-radius:var(--r);
  color:var(--ink);padding:10px 12px;font:inherit;font-size:15px;
}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent)}
input::placeholder{color:var(--ink3)}

.swatches{display:flex;gap:8px;flex-wrap:wrap}
.swatch{
  width:32px;height:32px;border-radius:7px;border:2px solid transparent;
  background:var(--sw);position:relative;padding:0;
}
.swatch[aria-pressed=true]{border-color:var(--ink);box-shadow:0 0 0 2px var(--bg2),0 0 0 4px var(--sw)}
.icons{display:flex;gap:6px;flex-wrap:wrap;max-height:120px;overflow:auto;padding:2px}
.icons button{
  width:36px;height:36px;border-radius:7px;background:var(--panel);
  border:1px solid var(--line);font-size:17px;line-height:1;padding:0;
}
.icons button[aria-pressed=true]{border-color:var(--accent);background:var(--panel2)}

.seg2{display:flex;background:var(--panel);border:1px solid var(--line2);border-radius:var(--r);overflow:hidden}
.seg2 button{flex:1;background:none;border:0;padding:9px;color:var(--ink3);font-size:14px}
.seg2 button[aria-pressed=true]{background:var(--accent);color:var(--accent-ink);font-weight:700}

.two{display:grid;grid-template-columns:1fr 1fr;gap:10px}

.modal-foot{display:flex;gap:9px;justify-content:flex-end;margin-top:22px}

/* paywall */
.plans{display:grid;gap:10px}
.plan{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  background:var(--panel);border:1px solid var(--line2);border-radius:10px;
  padding:14px 16px;text-align:left;
}
.plan:hover{border-color:var(--accent)}
.plan .nm{font-weight:700;font-size:15px}
.plan .ds{color:var(--ink3);font-size:12px;margin-top:2px}
.plan .pr{font-size:18px;font-weight:700;color:var(--accent);white-space:nowrap}
.plan.best{border-color:color-mix(in srgb,var(--accent) 55%,transparent);position:relative}
.plan .badge{
  position:absolute;top:-9px;right:12px;background:var(--accent);color:var(--accent-ink);
  font-size:10px;font-weight:700;padding:2px 8px;border-radius:99px;letter-spacing:.05em;
}
.locked{
  display:flex;gap:9px;align-items:flex-start;background:var(--panel);
  border:1px solid var(--line);border-radius:8px;padding:12px 14px;
  font-size:13px;color:var(--ink2);margin-bottom:16px;
}

/* ---------- toast ---------- */
.toast{
  position:fixed;left:50%;bottom:26px;transform:translateX(-50%);
  background:var(--panel2);border:1px solid var(--line2);border-radius:99px;
  padding:10px 20px;font-size:14px;z-index:200;
  box-shadow:0 8px 30px rgba(0,0,0,.5);animation:pop .16s;
}
.toast b{color:var(--accent)}

/* ---------- footer ---------- */
.foot{
  position:fixed;bottom:0;left:0;right:0;z-index:20;
  background:color-mix(in srgb,var(--bg) 92%,transparent);
  backdrop-filter:blur(8px);border-top:1px solid var(--line);
  padding:11px 20px;font-size:12px;color:var(--ink3);
  display:flex;gap:9px;justify-content:center;align-items:center;flex-wrap:wrap;
}
.foot .sep{opacity:.5}
.linkish{background:none;border:0;padding:0;color:var(--ink2);text-decoration:underline;font-size:12px}
.linkish:hover{color:var(--accent)}
.foot #footStat b{color:var(--accent)}

/* ---------- misc ---------- */
.banner{
  grid-column:1/-1;background:var(--panel);border:1px solid var(--line2);
  border-radius:10px;padding:12px 15px;font-size:13px;color:var(--ink2);
  display:flex;gap:12px;align-items:center;justify-content:space-between;flex-wrap:wrap;
}
.banner .btn{padding:6px 11px;font-size:12px}

@media (max-width:640px){
  .board{grid-template-columns:1fr;padding:16px 14px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .topbar{padding:12px 14px;gap:10px}
  .brand-sub{display:none}
  .empty h1{font-size:24px}
  .two{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
}