/* Dear Santa Reply — cheerful, parent-friendly Christmas look.
   Light + dark mode (respects the OS, plus a manual toggle setting
   data-theme on <html>). Print rules for coloring are scoped under
   body.coloring-printing so normal page printing is unaffected. */

:root{
  --bg:#fff8ee; --card:#ffffff; --ink:#33241a; --muted:#7a6552;
  --red:#c0272d; --red-dark:#941b21; --green:#1e7d46; --gold:#e9a13b;
  --cream:#fdf0d5; --line:#ecd9bd; --tab-bg:#c0272d; --tab-ink:#fff;
  --shadow:0 4px 18px rgba(90,40,10,.12);
}
@media (prefers-color-scheme: dark){
  :root{ --bg:#1d1712; --card:#2a211a; --ink:#f5e9da; --muted:#c4ab90;
    --line:#4a3826; --cream:#332619; --shadow:0 4px 18px rgba(0,0,0,.45); }
}
html[data-theme="dark"]{
  --bg:#1d1712; --card:#2a211a; --ink:#f5e9da; --muted:#c4ab90;
  --line:#4a3826; --cream:#332619; --shadow:0 4px 18px rgba(0,0,0,.45);
}
html[data-theme="light"]{
  --bg:#fff8ee; --card:#ffffff; --ink:#33241a; --muted:#7a6552;
  --line:#ecd9bd; --cream:#fdf0d5; --shadow:0 4px 18px rgba(90,40,10,.12);
}

*{box-sizing:border-box}
body{margin:0;font-family:"Segoe UI",system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--ink);line-height:1.55}
main{max-width:860px;margin:0 auto;padding:0 16px 48px}
h1,h2,h3{font-family:Georgia,"Times New Roman",serif}

/* Sticky tab bar at the very top (above the hero) */
.tabbar{position:sticky;top:0;z-index:50;display:flex;flex-wrap:wrap;gap:4px;justify-content:center;background:var(--tab-bg);padding:8px 6px;box-shadow:0 2px 8px rgba(0,0,0,.25)}
.tab{border:2px solid transparent;background:transparent;color:var(--tab-ink);font:inherit;font-weight:600;padding:8px 14px;border-radius:999px;cursor:pointer}
.tab:hover{background:rgba(255,255,255,.18)}
.tab.is-active{background:#fff;color:var(--red-dark);border-color:var(--gold)}

.hero{text-align:center;padding:28px 16px 8px;background:linear-gradient(180deg,var(--cream),transparent)}
.hero-emoji{font-size:2rem}
.hero h1{font-size:2.6rem;margin:.1em 0;color:var(--red)}
.hero h1 span{color:var(--green)}
.tagline{font-size:1.15rem;max-width:560px;margin:0 auto}
.hero-badges{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin:16px 0 8px}
.badge{background:var(--card);border:1px solid var(--line);border-radius:999px;padding:6px 14px;box-shadow:var(--shadow)}
.hero-links a{color:var(--red);font-weight:600}
#theme-toggle{margin-left:12px;background:none;border:1px solid var(--line);border-radius:999px;padding:4px 12px;color:var(--ink);cursor:pointer;font:inherit}

.page{display:none}
.page.is-active{display:block;animation:fade .25s ease}
@keyframes fade{from{opacity:0}to{opacity:1}}
.lede{color:var(--muted)}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px;margin:18px 0;box-shadow:var(--shadow)}

.steps{display:grid;gap:14px}
@media(min-width:700px){.steps{grid-template-columns:repeat(3,1fr)}}
.step{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px;box-shadow:var(--shadow)}
.step-num{width:40px;height:40px;border-radius:50%;background:var(--red);color:#fff;font-weight:800;display:grid;place-items:center;font-size:1.2rem}
.linklike{background:none;border:none;color:var(--red);font:inherit;font-weight:700;cursor:pointer;text-decoration:underline;padding:0}

form label{display:block;font-weight:600;margin:12px 0}
form input,form textarea,form select{width:100%;margin-top:4px;padding:10px;border:1.5px solid var(--line);border-radius:10px;font:inherit;background:var(--bg);color:var(--ink)}
.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.optional{font-weight:400;color:var(--muted);font-size:.85em}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.consent{display:flex;gap:10px;align-items:flex-start;font-weight:500}
.consent input{width:auto;margin-top:5px}
.form-error{color:var(--red);font-weight:700}
.fineprint{color:var(--muted);font-size:.9em}

.btn{display:inline-block;background:var(--red);color:#fff;border:none;font:inherit;font-weight:700;padding:10px 20px;border-radius:999px;cursor:pointer;text-decoration:none;text-align:center}
.btn:hover{background:var(--red-dark)}
.btn.big{font-size:1.1rem;padding:14px 28px;width:100%}
.btn.small{padding:6px 14px;font-size:.9rem}
.btn.ghost{background:transparent;color:var(--red);border:2px solid var(--red)}

.confirm .conf-address{white-space:pre-line;background:var(--cream);border-radius:10px;padding:12px;font-weight:600}
.certificate{margin:18px 0;border:3px dashed var(--gold);border-radius:14px;padding:6px;background:var(--cream)}
.cert-inner{border:2px solid var(--gold);border-radius:10px;padding:18px;text-align:center}
.cert-head{font-weight:800;color:var(--green);letter-spacing:.03em}
.cert-name{font-family:Georgia,serif;font-size:1.7rem;color:var(--red);margin:.2em 0}
.cert-sign{color:var(--muted)}

.game canvas{width:100%;max-width:640px;background:#20304d;border-radius:12px;display:block;margin:0 auto;touch-action:none}
.game-hud{text-align:center}

.donate-btns{display:grid;gap:10px}
@media(min-width:640px){.donate-btns{grid-template-columns:1fr 1fr}}
.donate-btn span{display:block;font-weight:400;font-size:.85em;opacity:.9}

.nice-result{font-size:1.2rem;font-weight:700;text-align:center;padding:14px;border-radius:12px;background:var(--cream)}
.starters{list-style:none;padding:0}
.starter{background:var(--cream);border:1px solid var(--line);border-radius:10px;padding:10px 14px;font:inherit;cursor:pointer;width:100%;text-align:left;margin:4px 0;color:var(--ink)}
.starter:hover{border-color:var(--gold)}

.group-label{margin-top:22px}
.pic-picker{display:flex;flex-wrap:wrap;gap:8px}
.pic-btn{border:2px solid var(--line);background:var(--card);color:var(--ink);border-radius:999px;padding:8px 14px;font:inherit;font-weight:600;cursor:pointer}
.pic-btn small{color:var(--muted);font-weight:400}
.pic-btn.is-active{border-color:var(--red);background:var(--cream)}
.palette{display:flex;flex-wrap:wrap;gap:6px;margin:10px 0}
.swatch{width:42px;height:42px;border-radius:10px;border:2px solid var(--line);cursor:pointer;position:relative;font-weight:800;color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.5)}
.swatch.is-active{border-color:var(--ink);transform:scale(1.08)}
.swatch.eraser{background:repeating-linear-gradient(45deg,#fff 0 6px,#f3c6c6 6px 12px);color:var(--red);text-shadow:none}
.color-tools{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:8px 0}
.cbn-toggle{font-weight:600}
.coloring-stage{background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px}
.coloring-stage svg{width:100%;height:auto;display:block}
.coloring-stage .region{fill:#ffffff;stroke:#222;stroke-width:2;cursor:pointer}
.coloring-stage .region:hover{stroke:var(--red);stroke-width:3}
.coloring-stage .num{font-size:15px;font-weight:700;fill:#666;pointer-events:none;text-anchor:middle}
.coloring-stage:not(.cbn-on) .num{display:none}

.faq details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin:10px 0;box-shadow:var(--shadow)}
.faq summary{font-weight:700;cursor:pointer}

footer{text-align:center;color:var(--muted);padding:24px 16px 40px}
footer a{color:var(--red)}

.modal{position:fixed;inset:0;background:rgba(20,10,5,.55);display:grid;place-items:start center;overflow:auto;padding:20px 10px;z-index:100}
.modal[hidden]{display:none}
.modal-box{background:var(--card);color:var(--ink);border-radius:16px;max-width:680px;width:100%;padding:22px;box-shadow:var(--shadow)}
.mailbag-filters{display:flex;gap:8px;margin:10px 0}
.letter-card{border:1px solid var(--line);border-radius:12px;padding:14px;margin:12px 0;background:var(--bg)}
.letter-card h4{margin:.2em 0}
.badge-state{font-size:.8rem;font-weight:800;padding:2px 10px;border-radius:999px}
.badge-state.waiting{background:#fbe3a1;color:#6b4e00}
.badge-state.done{background:#bfe8cc;color:#14532d}
.letter-card pre{white-space:pre-wrap;font:inherit;background:var(--card);border:1px solid var(--line);border-radius:8px;padding:10px}
.letter-card .actions{display:flex;flex-wrap:wrap;gap:8px}

/* Coloring print: scoped so normal page printing is unaffected.
   app.js adds .coloring-printing to <body> (and a print sheet node) only
   while a coloring print is in progress, then removes both on afterprint. */
@media print{
  body.coloring-printing > *:not(#print-sheet){display:none !important}
  body.coloring-printing #print-sheet{display:block !important}
}
#print-sheet{display:none}