:root{
  --bg:#f2f2f2;
  --text:#0c0c0c;
  --muted:#848484;
  --brand:#4e3ad8;
  --accent:#e6216a;
  --card:#ffffff;
  --border: rgba(0,0,0,.08);
  --progress: linear-gradient(90deg, #4e3ad8, #e6216a);
  --shadow: 0 8px 24px rgba(0,0,0,.08);
}
:root.dark{
  --bg:#0c0c0c;
  --text:#f2f2f2;
  --muted:#9a9a9a;
  --brand:#7a6bff;
  --accent:#ff4786;
  --card:#141414;
  --border: rgba(255,255,255,.08);
  --shadow: 0 8px 24px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:Inter, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, 'Helvetica Neue', Arial, 'Apple Color Emoji','Segoe UI Emoji','Segoe UI Symbol';
  line-height:1.55;
}
.container{max-width:980px;margin-inline:auto;padding:0 20px}
.site-header{
  position:sticky;top:0;z-index:50;background:var(--bg);border-bottom:1px solid var(--border);
  backdrop-filter:saturate(1.1) blur(6px);
}
.site-header .container{ padding-left:16px; padding-right:16px; }
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:12px}
.brand{display:flex;align-items:center;gap:12px}
.logo{display:block;border-radius:12px;box-shadow:var(--shadow)}
.brand h1{font:700 20px Sora, Inter, sans-serif; margin:0;letter-spacing:.2px}
.subtitle{font:500 12px Inter, sans-serif;color:var(--muted);margin:0}
.header-actions{display:flex;align-items:center;gap:12px}
.btn{
  border:1px solid var(--border);background:var(--card);color:var(--text);
  padding:8px 12px;border-radius:12px;cursor:pointer;transition:.2s ease;box-shadow:var(--shadow)
}
.btn:hover{transform:translateY(-1px)}
.btn.ghost{background:transparent}
.btn.danger{border-color:transparent;background:color-mix(in srgb, var(--accent) 18%, var(--card));}
.progress-wrap{ background:transparent; }
.progress-track{
  height:10px;background:color-mix(in srgb, var(--brand) 8%, var(--bg));
  border-radius:9999px;overflow:hidden;width:100%;box-shadow:var(--shadow)
}
.progress-bar{ height:100%;background:var(--progress);transition:width .25s ease;border-radius:9999px }
.progress-meta{
  display:flex;justify-content:space-between;align-items:center;
  font:600 12px Sora, Inter, sans-serif;color:var(--muted);
  padding:8px 0 12px 0;
}
.intro{margin:24px 0}
.checklist{display:grid;gap:16px}
.group{background:var(--card);border:1px solid var(--border);border-radius:18px;padding:16px 14px;box-shadow:var(--shadow)}
.group h2{font:700 16px Sora, Inter, sans-serif;margin:0 0 6px 0;display:flex;align-items:center;gap:8px}
.item{display:flex;align-items:flex-start;gap:12px;padding:10px;border-radius:12px;transition:.2s;background:transparent}
.item:hover{background:color-mix(in srgb, var(--brand) 6%, transparent)}
.item label{cursor:pointer;flex:1}
.item .hint{display:block;color:var(--muted);font-size:.9rem;margin-top:4px}
.checkbox{appearance:none;width:20px;height:20px;border:2px solid var(--muted);border-radius:6px;display:grid;place-content:center;transition:.2s;outline:none}
.checkbox:checked{border-color:transparent;background:var(--brand)}
.checkbox:checked::after{content:'✓';color:white;font-weight:700;font-size:14px;transform:translateY(-1px)}
.taglist{display:flex;gap:8px;flex-wrap:wrap;margin:8px 0 4px 28px}
.tag{font:600 11px Sora, Inter, sans-serif;color:var(--text);background:color-mix(in srgb, var(--brand) 10%, var(--card));border:1px solid var(--border);padding:4px 8px;border-radius:999px}
.notes{margin:24px 0}
.footer{
  margin:36px 0 0;
  padding:16px 0 20px;
  color:var(--muted);text-align:center;font-size:.92rem;background:var(--bg);
}
@supports (padding: max(0px)) {.footer{padding-bottom:max(20px, env(safe-area-inset-bottom));}}
@media (prefers-color-scheme: dark) {:root:not(.light){ color-scheme:dark }}
@media (prefers-color-scheme: light) {:root:not(.dark){ color-scheme:light }}
@media (max-width:480px){
  .site-header .container{ padding-left:18px; padding-right:18px; }
  .progress-meta.container{ padding-left:18px; padding-right:18px; }
}