/* ORBIT — Todo — Pure CSS — Neutral version */
:root {
  --bg: #08080c;
  --bg-soft: #0f0f17;
  --surface: rgba(255,255,255,0.06);
  --surface-2: rgba(255,255,255,0.09);
  --surface-3: rgba(255,255,255,0.12);
  --border: rgba(255,255,255,0.10);
  --border-2: rgba(255,255,255,0.16);
  --text: #f5f5f7;
  --text-muted: #9a9ab0;
  --text-faint: #5c5c72;
  --accent: #a78bfa;
  --accent-2: #34d399;
  --accent-3: #f472b6;
  --danger: #fb7185;
  --warn: #fbbf24;
  --shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.04) inset;
  --radius-xl: 24px;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-pill: 999px;
  --font-sans: "Geist", system-ui, -apple-system, sans-serif;
  --font-mono: "Geist Mono", ui-monospace, monospace;
  --font-serif: "Instrument Serif", Georgia, serif;
}
[data-theme="light"] {
  --bg: #fbf8f3;
  --bg-soft: #ffffff;
  --surface: rgba(17,17,17,0.04);
  --surface-2: rgba(17,17,17,0.07);
  --surface-3: rgba(17,17,17,0.10);
  --border: rgba(17,17,17,0.08);
  --border-2: rgba(17,17,17,0.14);
  --text: #111118;
  --text-muted: #6b6b82;
  --text-faint: #9a9ab0;
  --accent: #6d28d9;
  --accent-2: #059669;
  --accent-3: #db2777;
  --shadow: 0 20px 50px rgba(17,17,17,0.08), 0 0 0 1px rgba(17,17,17,0.04) inset;
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  line-height: 1.5;
}
.bg { position: fixed; inset: 0; z-index: -1; pointer-events: none; overflow: hidden; }
.bg-orb { position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.55; }
.orb-1 { width: 700px; height: 700px; background: radial-gradient(circle at 30% 30%, #a78bfa, transparent 60%), radial-gradient(circle at 70% 70%, #34d399, transparent 50%); top: -200px; left: -150px; }
.orb-2 { width: 600px; height: 600px; background: radial-gradient(circle, #f472b6 0%, transparent 65%); bottom: -100px; right: -120px; opacity: 0.35; }
.orb-3 { width: 900px; height: 900px; background: radial-gradient(circle, rgba(167,139,250,0.12), transparent 60%); top: 40%; left: 30%; opacity: 0.5; }
.bg-grain {
  position: absolute; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.05'/%3E%3C/svg%3E");
  mix-blend-mode: soft-light; opacity: 0.35;
}
.bg-grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(var(--border) 1px, transparent 1px), linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 32px 32px; opacity: 0.15; mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
}
.app { width: min(1220px, 100%); margin: 0 auto; padding: 24px 20px 48px; }
.topbar { display: flex; justify-content: space-between; align-items: center; padding: 10px 6px 22px; }
.brand { display: flex; gap: 12px; align-items: center; }
.brand-mark {
  width: 36px; height: 36px; border-radius: 12px;
  background: linear-gradient(135deg, var(--text) 0%, #888 100%);
  color: var(--bg); display: grid; place-items: center;
  font-size: 18px; font-weight: 700; letter-spacing: -0.02em;
  box-shadow: 0 8px 20px rgba(0,0,0,0.25);
}
.brand-name { font-weight: 700; letter-spacing: -0.03em; font-size: 15px; display: block; line-height: 1; }
.brand-sub { font-family: var(--font-mono); font-size: 10.5px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.08em; }
.topbar-actions { display: flex; gap: 10px; align-items: center; }
.date-pill {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.04em;
  padding: 8px 12px; border-radius: var(--radius-pill);
  background: var(--surface); border: 1px solid var(--border); color: var(--text-muted);
}
.icon-btn {
  width: 36px; height: 36px; border-radius: 999px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text); cursor: pointer; display: grid; place-items: center;
  transition: 0.2s; font-size: 14px;
}
.icon-btn:hover { background: var(--surface-2); transform: translateY(-1px); }
.layout { display: grid; grid-template-columns: 380px 1fr; gap: 18px; align-items: start; }
.stack { display: flex; flex-direction: column; gap: 18px; position: sticky; top: 20px; }
.card {
  background: linear-gradient(180deg, rgba(255,255,255,0.07) 0%, rgba(255,255,255,0.03) 100%);
  backdrop-filter: blur(18px) saturate(1.2);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
}
[data-theme="light"] .card { background: linear-gradient(180deg, #fff 0%, #fdfcfa 100%); }
.card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.18), transparent);
  pointer-events: none;
}
.card-input { padding: 22px; }
.card-head { margin-bottom: 18px; }
.h1 {
  font-family: var(--font-serif);
  font-size: clamp(28px, 3.2vw, 36px);
  line-height: 0.95; letter-spacing: -0.03em; font-weight: 400; margin: 0 0 8px;
}
.h1 em { font-style: italic; color: var(--accent); }
.muted { color: var(--text-muted); font-size: 13px; margin: 0; font-weight: 400; }
.input-group { display: flex; flex-direction: column; gap: 12px; }
.input-main {
  display: flex; gap: 8px; align-items: center;
  background: var(--bg-soft); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 6px; transition: 0.2s;
}
.input-main:focus-within { border-color: var(--border-2); background: var(--surface); box-shadow: 0 0 0 4px rgba(167,139,250,0.12); }
.input-main input {
  flex: 1; background: transparent; border: 0; outline: 0;
  font-family: inherit; font-size: 15px; font-weight: 500; color: var(--text);
  padding: 10px 12px; min-width: 0;
}
.input-main input::placeholder { color: var(--text-faint); font-weight: 400; }
.add-btn {
  display: flex; align-items: center; gap: 8px;
  background: var(--text); color: var(--bg); border: 0; border-radius: var(--radius-pill);
  padding: 11px 16px; font-weight: 600; font-size: 13px; letter-spacing: -0.01em; cursor: pointer;
  transition: 0.2s cubic-bezier(0.16,1,0.3,1); white-space: nowrap;
}
.add-btn:hover { transform: translateY(-1px) scale(1.02); filter: brightness(1.05); }
.add-btn:active { transform: translateY(0) scale(0.98); }
.add-kbd {
  font-family: var(--font-mono); font-size: 10px; background: rgba(255,255,255,0.16); color: var(--bg);
  width: 20px; height: 20px; border-radius: 6px; display: grid; place-items: center;
}
[data-theme="light"] .add-kbd { background: rgba(0,0,0,0.12); }
.input-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.meta-field { display: flex; flex-direction: column; gap: 6px; }
.meta-field label { font-family: var(--font-mono); font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-faint); }
.meta-field input[type="date"], .meta-field select {
  width: 100%; background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
  padding: 10px 10px; font-family: var(--font-mono); font-size: 12.5px; color: var(--text); outline: 0;
}
.prio-switch { display: grid; grid-template-columns: 1fr 1fr 1fr; background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 3px; gap: 3px; }
.prio-opt {
  border: 0; background: transparent; border-radius: 7px; padding: 7px 0; font-size: 11.5px; font-weight: 600; letter-spacing: 0.02em;
  color: var(--text-muted); cursor: pointer; transition: 0.18s;
}
.prio-opt.active { background: var(--text); color: var(--bg); }
.prio-opt[data-prio="high"].active { background: var(--danger); color: white; }
.prio-opt[data-prio="med"].active { background: var(--warn); color: #111; }
.prio-opt[data-prio="low"].active { background: var(--surface-3); color: var(--text); }
.progress-wrap { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--border); }
.progress-head { display: flex; justify-content: space-between; font-family: var(--font-mono); font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-muted); margin-bottom: 8px; }
.progress-track { height: 6px; background: var(--surface); border-radius: 99px; overflow: hidden; }
.progress-bar { height: 100%; width: 0%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); border-radius: 99px; transition: width 0.6s cubic-bezier(0.16,1,0.3,1); }
.card-stats { padding: 18px; }
.stat-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 8px; margin-bottom: 16px; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 10px 12px; text-align: left; }
.stat-num { font-weight: 700; font-size: 18px; line-height: 1; letter-spacing: -0.03em; }
.stat-label { font-family: var(--font-mono); font-size: 9.5px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-muted); margin-top: 4px; }
.search-wrap {
  position: relative; display: flex; align-items: center;
  background: var(--bg-soft); border: 1px solid var(--border); border-radius: 12px; padding: 0 10px;
}
.search-icon { color: var(--text-faint); font-size: 14px; }
.search-wrap input { flex: 1; background: transparent; border: 0; outline: 0; padding: 11px 8px; font-size: 13.5px; color: var(--text); }
.search-wrap input::placeholder { color: var(--text-faint); }
.clear-search { border: 0; background: transparent; color: var(--text-faint); cursor: pointer; padding: 4px; display: none; }
.search-wrap.has-value .clear-search { display: block; }
.filters { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 12px; }
.filter-pill {
  border: 1px solid var(--border); background: var(--surface); color: var(--text-muted);
  border-radius: var(--radius-pill); padding: 7px 12px; font-size: 12px; font-weight: 500; cursor: pointer; transition: 0.18s;
  font-family: var(--font-mono);
}
.filter-pill.active { background: var(--text); color: var(--bg); border-color: var(--text); }
.filter-pill:hover { border-color: var(--border-2); }
.actions-row { display: flex; align-items: center; gap: 10px; margin-top: 14px; font-size: 11.5px; }
.text-btn { border: 0; background: transparent; color: var(--text-muted); font-family: var(--font-mono); font-size: 11px; cursor: pointer; text-decoration: underline; text-underline-offset: 3px; }
.text-btn:hover { color: var(--text); }
.dot-sep { color: var(--text-faint); }
.hint { font-family: var(--font-mono); color: var(--text-faint); font-size: 10.5px; }
.card-list { padding: 0; display: flex; flex-direction: column; min-height: 560px; }
.list-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 20px 22px 16px; border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 2;
  background: inherit; backdrop-filter: blur(18px);
}
.h2 { font-family: var(--font-serif); font-size: 22px; font-weight: 400; margin: 0; letter-spacing: -0.02em; }
.list-title-row { display: flex; align-items: center; gap: 10px; }
.count-badge {
  font-family: var(--font-mono); font-size: 11px; background: var(--surface); border: 1px solid var(--border);
  padding: 4px 9px; border-radius: var(--radius-pill); color: var(--text-muted); min-width: 28px; text-align: center;
}
.sort-wrap select {
  background: var(--surface); border: 1px solid var(--border); border-radius: 10px; color: var(--text);
  font-family: var(--font-mono); font-size: 11px; padding: 8px 10px; outline: 0;
}
.todo-list { padding: 12px; display: flex; flex-direction: column; gap: 8px; }
.todo-item {
  display: grid; grid-template-columns: 36px 1fr auto; gap: 12px; align-items: center;
  background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 14px 14px;
  transition: 0.2s cubic-bezier(0.16,1,0.3,1); animation: popIn 0.42s cubic-bezier(0.16,1,0.3,1) both;
  position: relative; overflow: hidden;
}
@keyframes popIn { from { opacity: 0; transform: translateY(8px) scale(0.98); } to { opacity: 1; transform: translateY(0) scale(1); } }
.todo-item:hover { background: var(--surface-2); border-color: var(--border-2); transform: translateY(-1px); }
.todo-item.completed { opacity: 0.58; }
.todo-item.completed .todo-name { text-decoration: line-through; text-decoration-thickness: 1.5px; }
.todo-item.deleting { animation: shrinkOut 0.28s cubic-bezier(0.6,0,1,1) forwards; }
@keyframes shrinkOut { to { opacity: 0; transform: scale(0.96) translateX(12px); height: 0; margin: 0; padding-top: 0; padding-bottom: 0; } }
.check {
  width: 32px; height: 32px; border-radius: 999px; border: 1.5px solid var(--border-2);
  display: grid; place-items: center; cursor: pointer; transition: 0.2s; background: var(--bg-soft); flex-shrink: 0;
  font-size: 14px; color: transparent;
}
.check:hover { border-color: var(--accent); }
.todo-item.completed .check { background: var(--text); color: var(--bg); border-color: var(--text); }
.check-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--text-faint); transition: 0.2s; }
.todo-item.completed .check-dot { opacity: 0; }
.todo-main { min-width: 0; display: flex; flex-direction: column; gap: 6px; }
.todo-name { font-size: 14.5px; font-weight: 500; letter-spacing: -0.01em; word-break: break-word; line-height: 1.35; }
.todo-meta { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.meta-chip {
  display: inline-flex; align-items: center; gap: 5px; font-family: var(--font-mono); font-size: 10.5px;
  padding: 4px 8px; border-radius: 999px; border: 1px solid var(--border); background: var(--bg-soft); color: var(--text-muted);
  line-height: 1;
}
.meta-chip.overdue { background: rgba(251,113,133,0.12); border-color: rgba(251,113,133,0.25); color: var(--danger); }
.meta-chip.today { background: rgba(251,191,36,0.12); border-color: rgba(251,191,36,0.25); color: var(--warn); }
.meta-chip.high { background: rgba(251,113,133,0.14); border-color: rgba(251,113,133,0.28); color: var(--danger); }
.meta-chip.med { background: rgba(251,191,36,0.12); border-color: rgba(251,191,36,0.24); color: var(--warn); }
.meta-chip.low { opacity: 0.8; }
.todo-actions { display: flex; gap: 4px; align-items: center; }
.icon-mini {
  width: 30px; height: 30px; border-radius: 10px; border: 1px solid transparent; background: transparent;
  display: grid; place-items: center; cursor: pointer; color: var(--text-faint); transition: 0.18s; font-size: 13px;
}
.icon-mini:hover { background: var(--surface-2); border-color: var(--border); color: var(--text); }
.icon-mini.danger:hover { background: rgba(251,113,133,0.12); color: var(--danger); border-color: rgba(251,113,133,0.22); }
.empty {
  padding: 60px 24px; text-align: center; display: none; flex-direction: column; align-items: center; gap: 12px;
  color: var(--text-muted);
}
.empty.show { display: flex; }
.empty-art { font-family: var(--font-mono); font-size: 14px; letter-spacing: 0.2em; opacity: 0.5; }
.empty h3 { font-family: var(--font-serif); font-size: 20px; font-weight: 400; margin: 0; color: var(--text); }
.empty p { margin: 0; font-size: 13px; max-width: 240px; line-height: 1.5; }
.edit-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.5); backdrop-filter: blur(12px);
  display: none; place-items: center; z-index: 50; padding: 20px;
}
.edit-overlay.open { display: grid; }
.edit-card {
  width: min(440px, 100%); background: var(--bg-soft); border: 1px solid var(--border-2); border-radius: var(--radius-xl);
  padding: 20px; box-shadow: 0 30px 80px rgba(0,0,0,0.5); animation: popIn 0.3s cubic-bezier(0.16,1,0.3,1);
}
.edit-card h3 { font-family: var(--font-serif); font-size: 18px; margin: 0 0 14px; font-weight: 400; }
.edit-card input, .edit-card select {
  width: 100%; background: var(--surface); border: 1px solid var(--border); border-radius: 12px;
  padding: 12px 12px; font-family: inherit; font-size: 14px; color: var(--text); outline: 0; margin-bottom: 10px;
}
.edit-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.edit-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 6px; }
.btn-ghost { border: 1px solid var(--border); background: var(--surface); color: var(--text); border-radius: 999px; padding: 10px 16px; font-weight: 600; font-size: 13px; cursor: pointer; }
.btn-solid { border: 0; background: var(--text); color: var(--bg); border-radius: 999px; padding: 10px 18px; font-weight: 600; font-size: 13px; cursor: pointer; }
.footer {
  display: flex; gap: 10px; justify-content: center; align-items: center;
  padding: 28px 0 0; font-family: var(--font-mono); font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-faint);
}
.footer kbd {
  display: inline-grid; place-items: center; min-width: 18px; height: 18px; padding: 0 5px; border-radius: 5px;
  background: var(--surface); border: 1px solid var(--border); border-bottom-width: 2px; font-size: 10px; color: var(--text-muted);
}
.footer-dot { opacity: 0.5; }
@media (max-width: 1024px) {
  .layout { grid-template-columns: 1fr; }
  .stack { position: static; }
  .card-list { min-height: 400px; }
}
@media (max-width: 640px) {
  .app { padding: 16px 12px 32px; }
  .topbar { padding-bottom: 16px; }
  .card { border-radius: 20px; }
  .card-input { padding: 18px 16px; }
  .h1 { font-size: 30px; }
  .input-main { flex-direction: column; align-items: stretch; gap: 8px; padding: 8px; }
  .input-main input { padding: 10px 8px; font-size: 16px; }
  .add-btn { width: 100%; justify-content: center; padding: 13px; }
  .input-meta { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: repeat(4,1fr); gap: 6px; }
  .stat { padding: 8px 8px; }
  .stat-num { font-size: 16px; }
  .list-head { padding: 16px; flex-wrap: wrap; gap: 10px; }
  .todo-item { grid-template-columns: 32px 1fr; padding: 12px; }
  .todo-actions { grid-column: 1 / -1; justify-content: flex-end; margin-top: 2px; }
  .edit-meta { grid-template-columns: 1fr; }
  .footer { flex-direction: column; gap: 6px; text-align: center; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}