/* QR Quick Pick — tool page styles */
:root{
  --ink:#14161a; --paper:#f2f4f8; --card:#ffffff; --accent:#2447ff;
  --accent-ink:#ffffff; --line:#d7dce6; --ok:#0a8a3e; --warn:#b45309;
  --err:#c62828; --radius:14px;
  --mono:'Space Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  font-family:'Space Grotesk',system-ui,-apple-system,'Segoe UI',sans-serif;
  background:var(--paper);color:var(--ink);min-height:100vh;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size:36px 36px;background-position:center;
}
.wrap{max-width:980px;margin:0 auto;padding:20px 16px 56px}
header{display:flex;align-items:center;gap:14px;padding:18px 0 14px}
header a{color:inherit;text-decoration:none;display:flex;align-items:center;gap:14px}
.mark{width:46px;height:46px;flex:0 0 46px;display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);gap:3px}
.mark span{background:var(--ink);border-radius:2px}
.mark span.a{background:var(--accent)}
.mark span.o{background:transparent}
h1{font-size:clamp(1.5rem,4vw,2rem);font-weight:700;letter-spacing:-.02em;line-height:1.1}
h1 em{font-style:normal;color:var(--accent)}
.tag{font-size:.9rem;color:#4a5160;margin-top:2px}

/* tool switcher */
.tools{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 20px}
.tools a{
  text-decoration:none;color:var(--ink);font-weight:700;font-size:.85rem;
  border:2px solid var(--ink);border-radius:999px;padding:8px 14px;background:#fff;
}
.tools a:hover{background:var(--paper)}
.tools a.on{background:var(--ink);color:#fff}
.tools a:focus-visible{outline:3px solid var(--accent);outline-offset:2px}

main{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:760px){main{grid-template-columns:1fr 1fr;align-items:start}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 2px 10px rgba(20,22,26,.05)}
h2{font-size:1.05rem;font-weight:700;margin-bottom:14px;letter-spacing:-.01em}
.pagetitle{font-size:1.35rem;margin-bottom:6px}
.intro{font-size:.92rem;line-height:1.6;color:#2a2f3a;margin-bottom:16px}

label{display:block;font-size:.85rem;font-weight:600;margin-bottom:6px}
.field{margin-bottom:16px}
input[type=text],input[type=url],input[type=tel],input[type=email],input[type=password],textarea{
  width:100%;padding:13px 14px;font-size:1rem;font-family:var(--mono);
  border:2px solid var(--ink);border-radius:10px;background:#fff;color:var(--ink);
}
textarea{resize:vertical;min-height:70px}
input:focus-visible,select:focus-visible,button:focus-visible,textarea:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.hint{font-size:.8rem;color:#4a5160;margin-top:6px;line-height:1.5}
.msg{font-size:.9rem;font-weight:600;margin-top:8px;display:none}
.msg.err{display:block;color:var(--err)}
.msg.warn{display:block;color:var(--warn)}
.msg.ok{display:block;color:var(--ok)}
.row{display:flex;gap:14px;flex-wrap:wrap}
.row .field{flex:1 1 130px}
select{width:100%;padding:12px;font-size:1rem;border:2px solid var(--ink);border-radius:10px;background:#fff;color:var(--ink);font-family:inherit}
.colorbox{display:flex;align-items:center;gap:10px;border:2px solid var(--ink);border-radius:10px;padding:8px 12px;background:#fff}
input[type=color]{width:38px;height:38px;border:none;padding:0;background:none;cursor:pointer;border-radius:8px}
.colorbox code{font-family:var(--mono);font-size:.85rem}
.check{display:flex;align-items:center;gap:10px;font-size:.9rem;font-weight:600}
.check input{width:20px;height:20px;accent-color:var(--accent)}

button{font-family:inherit;font-size:1.05rem;font-weight:700;cursor:pointer;border-radius:10px;border:2px solid var(--ink);padding:14px 18px;transition:transform .06s ease,box-shadow .12s ease}
button:active{transform:translateY(1px)}
.btn-primary{width:100%;background:var(--accent);color:var(--accent-ink);border-color:var(--accent);box-shadow:0 4px 0 #17308f}
.btn-primary:hover{box-shadow:0 5px 0 #17308f}
.btn-secondary{background:var(--ink);color:#fff;width:100%;box-shadow:0 4px 0 #000}
.btn-secondary[disabled]{opacity:.4;cursor:not-allowed;box-shadow:none}
.dl-row{display:flex;gap:10px}
.dl-row .btn-secondary{flex:1}

.viewfinder{position:relative;display:flex;align-items:center;justify-content:center;aspect-ratio:1/1;max-width:340px;margin:0 auto 18px;padding:22px}
.viewfinder::before,.viewfinder::after,.viewfinder .c3,.viewfinder .c4{content:"";position:absolute;width:34px;height:34px;border:4px solid var(--ink)}
.viewfinder::before{top:0;left:0;border-right:none;border-bottom:none;border-top-left-radius:8px}
.viewfinder::after{top:0;right:0;border-left:none;border-bottom:none;border-top-right-radius:8px}
.viewfinder .c3{bottom:0;left:0;border-right:none;border-top:none;border-bottom-left-radius:8px}
.viewfinder .c4{bottom:0;right:0;border-left:none;border-top:none;border-bottom-right-radius:8px}
#qrCanvas{width:100%;height:100%;max-width:280px;max-height:280px;image-rendering:pixelated;border-radius:6px;display:none}
.placeholder{text-align:center;color:#6a7180;font-size:.92rem;line-height:1.5;padding:10px}
.placeholder .big{font-size:2rem;display:block;margin-bottom:6px}
.scanline{position:absolute;left:10%;right:10%;height:3px;background:var(--accent);border-radius:3px;opacity:0;top:12%;pointer-events:none}
.scanning .scanline{animation:scan .5s ease-in-out 1;opacity:1}
@keyframes scan{0%{top:12%}50%{top:86%}100%{top:12%;opacity:0}}
@media(prefers-reduced-motion:reduce){.scanning .scanline{animation:none;opacity:0}button{transition:none}}
.meta{font-family:var(--mono);font-size:.78rem;color:#4a5160;text-align:center;margin-bottom:16px;word-break:break-all;min-height:1.2em}

/* content / faq */
.content{grid-column:1 / -1}
.content h3{font-size:1rem;margin:18px 0 8px}
.content p,.content li{font-size:.92rem;line-height:1.65;color:#2a2f3a;margin-bottom:10px}
.content ul,.content ol{padding-left:22px;margin-bottom:10px}
.content a{color:var(--accent);font-weight:600}
.faq details{border-bottom:1px dashed var(--line);padding:10px 0}
.faq details:last-of-type{border-bottom:none}
.faq summary{font-weight:700;font-size:.95rem;cursor:pointer;padding:6px 0;list-style-position:inside}
.faq summary:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.faq p{font-size:.9rem;line-height:1.6;color:#2a2f3a;padding:6px 0 4px 18px}

footer{margin-top:34px;text-align:center;font-size:.8rem;color:#6a7180}
footer p{max-width:620px;margin:0 auto;line-height:1.6}
footer nav{margin-top:12px;display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
footer nav a{color:#4a5160;text-decoration:none;font-weight:600}
footer nav a:hover{color:var(--accent)}
footer nav a:focus-visible{outline:3px solid var(--accent);outline-offset:2px}