/* Snake tracker — own light theme, dark toggle. Phone first. */
:root {
  --bg: #f5f7f2; --card: #ffffff; --ink: #1d2a21; --muted: #5f6d63; --line: #dfe6dc;
  --acc: #3f7d4e; --acc-ink: #ffffff; --acc-soft: #e5f1e5; --warn: #b85c00; --warn-soft: #fff1e0;
  --bad: #b3261e; --bad-soft: #fde8e6; --blue: #2f5fa8; --blue-soft: #e5edfa; --ok: #2e7d32;
  --r: 14px; --shadow: 0 1px 2px rgba(0,0,0,.06), 0 2px 10px rgba(0,0,0,.04);
  color-scheme: light;
}
[data-theme="dark"] {
  --bg: #111613; --card: #1a211c; --ink: #e5ece6; --muted: #9aa89e; --line: #2c372f;
  --acc: #6fbf7f; --acc-ink: #0d1a10; --acc-soft: #1f3324; --warn: #f0a050; --warn-soft: #3a2a14;
  --bad: #ff8a80; --bad-soft: #3d1c1a; --blue: #8fb4ff; --blue-soft: #1c2840; --ok: #7fd18a;
  --shadow: none; color-scheme: dark;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background-image: radial-gradient(circle at 10px 10px, var(--acc-soft) 1.5px, transparent 2px);
  background-size: 22px 22px; }
a { color: var(--acc); }
h1 { font-size: 1.45rem; margin: .2rem 0 .6rem; }
h2 { font-size: 1.1rem; margin: 1rem 0 .5rem; }
.card h2 { margin-top: 0; }
.top { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; gap: .6rem;
  padding: .55rem .8rem; padding-top: max(.55rem, env(safe-area-inset-top));
  background: var(--card); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: .45rem; font-weight: 700; text-decoration: none; color: var(--ink); }
.brand img { border-radius: 7px; }
.nav { display: flex; gap: .2rem; margin-left: auto; }
.nav a { text-decoration: none; color: var(--muted); padding: .35rem .55rem; border-radius: 999px; font-size: .95rem; }
.nav a[aria-current] { background: var(--acc-soft); color: var(--acc); font-weight: 600; }
.theme-btn { border: 1px solid var(--line); background: transparent; color: var(--ink); border-radius: 999px;
  width: 2.2rem; height: 2.2rem; font-size: 1.05rem; cursor: pointer; }
.main { max-width: 980px; margin: 0 auto; padding: .8rem .8rem 2rem; }
.foot { text-align: center; color: var(--muted); font-size: .85rem; padding: 1rem 1rem calc(1.5rem + env(safe-area-inset-bottom)); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: .9rem; box-shadow: var(--shadow); margin-bottom: .8rem; }
.narrow { max-width: 560px; margin-left: auto; margin-right: auto; }
.cards { display: grid; gap: .8rem; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
.cards .card { margin: 0; }
.cards.two { margin-bottom: .8rem; }
.center { text-align: center; }
.muted { color: var(--muted); }
.tiny { font-size: .8rem; }
.empty { text-align: center; padding: 2rem 1rem; }
.banner { display: block; background: var(--acc-soft); color: var(--acc); padding: .7rem .9rem; border-radius: var(--r);
  text-decoration: none; margin-bottom: .8rem; font-weight: 600; }
.flashes { max-width: 980px; margin: .6rem auto 0; padding: 0 .8rem; }
.flash { padding: .6rem .8rem; border-radius: 10px; margin: 0 0 .4rem; background: var(--acc-soft); }
.flash.err { background: var(--bad-soft); color: var(--bad); }

.snk-head { display: flex; align-items: center; gap: .7rem; text-decoration: none; color: inherit; }
.snk-head > span { display: flex; flex-direction: column; gap: .1rem; }
.ph { width: 64px; height: 64px; border-radius: 50%; object-fit: cover; flex: none; background: var(--acc-soft);
  display: inline-flex; align-items: center; justify-content: center; font-size: 2rem; border: 2px solid var(--acc-soft); }
.snk-head.big .ph { width: 92px; height: 92px; }
.nm { font-weight: 700; font-size: 1.15rem; }
.pill { display: inline-block; font-size: .75rem; padding: .1rem .5rem; border-radius: 999px; background: var(--line); margin-right: .25rem; width: fit-content; }
.pill.blue { background: var(--blue-soft); color: var(--blue); font-weight: 600; }
.pill.warn { background: var(--warn-soft); color: var(--warn); font-weight: 600; }
.card.snake.st-overdue { border-left: 5px solid var(--bad); }
.card.snake.st-due { border-left: 5px solid var(--warn); }
.card.snake.st-ok { border-left: 5px solid var(--acc); }

.facts { display: grid; grid-template-columns: 1fr 1fr; gap: .4rem .8rem; margin: .7rem 0; }
.facts div { min-width: 0; }
.facts dt { font-size: .75rem; color: var(--muted); text-transform: uppercase; letter-spacing: .03em; }
.facts dd { margin: 0; font-weight: 600; }
.due-overdue dd, li.due-overdue .tiny { color: var(--bad); }
.due-due dd, li.due-due .tiny, li.due-never .tiny { color: var(--warn); }
.up { color: var(--ok); } .down { color: var(--bad); } .flat { color: var(--muted); }

.quick { display: grid; grid-template-columns: repeat(3, 1fr); gap: .4rem; margin-top: .4rem; }
.qb { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: .1rem; min-height: 62px;
  text-decoration: none; color: var(--ink); background: var(--acc-soft); border-radius: 12px; font-size: 1.35rem; }
.qb span { font-size: .78rem; font-weight: 600; }
.qb:active { transform: scale(.96); }

.btn { display: inline-block; border: 1px solid var(--line); background: var(--card); color: var(--ink); text-decoration: none;
  padding: .55rem .9rem; border-radius: 10px; font: inherit; font-weight: 600; cursor: pointer; }
.btn.primary { background: var(--acc); border-color: var(--acc); color: var(--acc-ink); }
.btn.big { width: 100%; padding: .9rem; font-size: 1.1rem; text-align: center; }
.btn.sm { padding: .3rem .6rem; font-size: .85rem; }
.btn.danger { color: var(--bad); border-color: var(--bad); }

.stack { display: flex; flex-direction: column; gap: .7rem; }
label { display: flex; flex-direction: column; gap: .25rem; font-size: .9rem; color: var(--muted); }
label.check { flex-direction: row; align-items: center; gap: .5rem; color: var(--ink); }
input, select, textarea { font: inherit; font-size: 16px; color: var(--ink); background: var(--bg); border: 1px solid var(--line);
  border-radius: 10px; padding: .6rem .7rem; width: 100%; }
input[type=checkbox], input[type=radio] { width: auto; }
.bignum { font-size: 2rem; text-align: center; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: .6rem; }
fieldset { border: 1px solid var(--line); border-radius: 10px; padding: .6rem; }
legend { color: var(--muted); font-size: .85rem; }
.seg { display: flex; flex-wrap: wrap; gap: .35rem; }
.seg label { flex-direction: row; }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg span { display: inline-block; padding: .5rem .75rem; border: 1px solid var(--line); border-radius: 999px; color: var(--ink); background: var(--bg); }
.seg input:checked + span { background: var(--acc); color: var(--acc-ink); border-color: var(--acc); font-weight: 600; }
.seg input:focus-visible + span { outline: 2px solid var(--acc); outline-offset: 2px; }
.sticky-save { position: sticky; bottom: 0; padding: .5rem 0 calc(.5rem + env(safe-area-inset-bottom)); background: var(--card); }

.chips { display: flex; flex-wrap: wrap; gap: .35rem; margin: .4rem 0 .8rem; }
.chips form { margin: 0; }
.chip { text-decoration: none; padding: .3rem .65rem; border-radius: 999px; border: 1px solid var(--line); color: var(--ink); font-size: .85rem; white-space: nowrap; }
.chip.on { background: var(--acc); color: var(--acc-ink); border-color: var(--acc); }
.filter { flex-wrap: nowrap; overflow-x: auto; padding-bottom: .3rem; }

.timeline { list-style: none; margin: 0; padding: 0; }
.ev { display: flex; gap: .6rem; align-items: flex-start; padding: .6rem 0; border-top: 1px solid var(--line); }
.ev .ic { font-size: 1.3rem; width: 1.8rem; text-align: center; }
.evb { flex: 1; min-width: 0; }
.evx { display: flex; gap: .3rem; }
.evx form { margin: 0; }
.note { white-space: pre-wrap; font-size: .9rem; margin: .2rem 0; }
.helper { background: var(--acc-soft); padding: .5rem .7rem; border-radius: 10px; font-size: .9rem; }

.cleanlist { list-style: none; padding: 0; margin: .5rem 0; }
.cleanlist li { display: grid; grid-template-columns: 1fr auto auto; gap: .5rem; align-items: center; padding: .3rem 0; border-top: 1px dashed var(--line); }
.viv .nm { text-decoration: none; }
.wchart { width: 100%; height: auto; }
.wchart polyline { fill: none; stroke: var(--acc); stroke-width: 2.5; stroke-linejoin: round; }
.wchart circle { fill: var(--acc); }
.wchart text { fill: var(--muted); font-size: 10px; }
.danger-zone { margin-top: 1.2rem; color: var(--bad); }
@media (max-width: 420px) { .nav a { padding: .3rem .4rem; font-size: .9rem; } .brand { font-size: .95rem; } }
@media (min-width: 700px) { .card:not(.snake) > .quick, .snk-head.big + .quick { grid-template-columns: repeat(6, 1fr); } }