:root {
  --bg: #f6f7f4;
  --card: #ffffff;
  --ink: #1b1f1a;
  --muted: #5f665c;
  --line: #e2e6de;
  --green: #1f7a4d;
  --green-soft: #dff2e6;
  --amber: #c77d10;
  --amber-soft: #fbeedb;
  --red: #b23a3a;
  --accent: #244b8f;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(0,0,0,.05), 0 6px 20px rgba(20,40,20,.06);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #131613; --card: #1c201c; --ink: #eef1ea; --muted: #a2aa9d; --line: #2c322b;
    --green: #4fc383; --green-soft: #1d3327; --amber: #f0b350; --amber-soft: #3a2d14; --red: #e07a7a; --accent: #8fb1f0;
    --shadow: 0 1px 2px rgba(0,0,0,.4);
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.45 -apple-system, "Segoe UI", Inter, Roboto, system-ui, sans-serif; }
a { color: var(--accent); }
.wrap { max-width: 720px; margin: 0 auto; padding: 16px 16px 48px; }
.wrap.wide { max-width: 1080px; }
header.top { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin: 8px 0 18px; }
header.top h1 { font-size: 1.25rem; margin: 0; letter-spacing: -.01em; }
header.top .sub { color: var(--muted); font-size: .9rem; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 16px; margin-bottom: 14px; }
.card h2 { font-size: 1rem; margin: 0 0 10px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .04em; }
.big { font-size: 2.4rem; font-weight: 700; line-height: 1; letter-spacing: -.02em; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.stat { background: var(--bg); border-radius: 10px; padding: 12px; }
.stat .n { font-size: 1.6rem; font-weight: 700; line-height: 1.1; }
.stat .l { color: var(--muted); font-size: .8rem; margin-top: 2px; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
button, .btn { font: inherit; border: 1px solid var(--line); background: var(--card); color: var(--ink); border-radius: 10px; padding: 10px 14px; cursor: pointer; }
button.primary { background: var(--green); border-color: var(--green); color: #fff; font-weight: 600; }
button.ghost { background: transparent; }
button.danger { color: var(--red); }
button:disabled { opacity: .5; cursor: default; }
input, select, textarea { font: inherit; border: 1px solid var(--line); background: var(--card); color: var(--ink); border-radius: 10px; padding: 10px 12px; width: 100%; }
label { display: block; font-size: .85rem; color: var(--muted); margin-bottom: 4px; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.row > * { flex: 1 1 auto; }
.row > .fixed { flex: 0 0 auto; }

/* block tapper */
.tapper { display: flex; align-items: center; justify-content: center; gap: 18px; padding: 8px 0 4px; }
.tapper button { width: 64px; height: 64px; border-radius: 50%; font-size: 2rem; line-height: 1; font-weight: 600; }
.tapper .count { min-width: 90px; text-align: center; }
.tapper .count .big { font-size: 3.2rem; }
.blocks-visual { display: flex; gap: 6px; justify-content: center; flex-wrap: wrap; margin-top: 10px; min-height: 18px; }
.blocks-visual span { width: 26px; height: 14px; border-radius: 4px; background: var(--green); }
.blocks-visual span.empty { background: var(--line); }

/* calendar */
.cal { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; }
.cal .dow { text-align: center; font-size: .7rem; color: var(--muted); padding-bottom: 2px; }
.cal .d { aspect-ratio: 1; border-radius: 8px; background: var(--bg); display: flex; flex-direction: column; align-items: center; justify-content: center; font-size: .8rem; cursor: pointer; border: 1px solid transparent; position: relative; }
.cal .d.off { opacity: .3; cursor: default; }
.cal .d.future { opacity: .4; cursor: default; }
.cal .d.today { border-color: var(--accent); }
.cal .d.b1 { background: var(--green-soft); }
.cal .d.b2 { background: color-mix(in srgb, var(--green) 35%, var(--card)); }
.cal .d.b3 { background: color-mix(in srgb, var(--green) 60%, var(--card)); color: #fff; }
.cal .d .n { font-size: .65rem; opacity: .8; }
.cal-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.cal-head button { padding: 4px 10px; }

/* charts */
svg.chart { width: 100%; height: auto; display: block; }
svg.chart text { fill: var(--muted); font-size: 11px; }
svg.chart .axis { stroke: var(--line); }
svg.chart .line { fill: none; stroke: var(--green); stroke-width: 2; }
svg.chart .line.alt { stroke: var(--accent); }
svg.chart .dot { fill: var(--green); }
svg.chart .bar { fill: var(--green); }
svg.chart .bar.dim { fill: var(--line); }

/* tables */
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { color: var(--muted); font-weight: 600; font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.spark { display: inline-flex; gap: 2px; align-items: flex-end; height: 18px; }
.spark i { display: block; width: 5px; background: var(--green); border-radius: 1px; min-height: 2px; }
.spark i.z { background: var(--line); }
.pill { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: .75rem; background: var(--green-soft); color: var(--green); font-weight: 600; }
.pill.warn { background: var(--amber-soft); color: var(--amber); }
.pill.off { background: var(--line); color: var(--muted); }
.tabs { display: flex; gap: 6px; margin-bottom: 14px; flex-wrap: wrap; }
.tabs button { border-radius: 999px; padding: 8px 14px; }
.tabs button.on { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.hidden { display: none !important; }
.toast { position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%); background: var(--ink); color: var(--bg); padding: 10px 16px; border-radius: 999px; font-size: .9rem; opacity: 0; transition: opacity .2s; pointer-events: none; }
.toast.show { opacity: 1; }
code.link { user-select: all; background: var(--bg); padding: 2px 6px; border-radius: 6px; font-size: .85rem; word-break: break-all; }
.center { text-align: center; }
.skill-routine { white-space: pre-line; }
.skill-video { margin: 10px 0; }
.skill-video iframe { display: block; width: 100%; aspect-ratio: 16 / 9; border: 0; border-radius: 8px; }
@media (max-width: 480px) {
  .stats { grid-template-columns: repeat(3, 1fr); gap: 6px; }
  .stat { padding: 10px 8px; }
  .stat .n { font-size: 1.3rem; }
}