/* FreeQrly v1.1 — "Dopamine" theme: warm cream, soft bright accents, elegant serif */
:root{
  --bg:#FAF5EA; --card:#FFFFFF; --ink:#2C3644; --soft:#7C8494;
  --line:#EADFC9; --deep:#2F4A62; --deep2:#243B52; --gold:#D9A441;
  --field:#F6F0E1;
  --honey:#F5B942; --coral:#EF7D6B; --mint:#5FC39A; --sky:#6FA8E8;
  --blush:#F0A3B8; --lilac:#B79CED;
  --peach:#FCEBD8; --mintbg:#DFF2E5; --skybg:#DEEAFB; --blushbg:#FADFE6; --honeybg:#FBEECB;
  --shadow:0 20px 55px rgba(190,145,60,.10), 0 3px 12px rgba(190,145,60,.07);
  --preview-bg:linear-gradient(160deg,#FFFBF2,#FBEFD9);
}
[data-theme="dark"]{
  --bg:#16140F; --card:#201C14; --ink:#EDE4D2; --soft:#9C9280;
  --line:#322B1E; --deep:#8FB4DC; --deep2:#A9C8E8; --gold:#D9A441;
  --field:#16140F;
  --honey:#D9A441; --coral:#E08070; --mint:#6FC7A0; --sky:#7FB0E8;
  --blush:#E09AB4; --lilac:#B79CED;
  --peach:#33271A; --mintbg:#1C2E25; --skybg:#1D2940; --blushbg:#332229; --honeybg:#38300F;
  --shadow:0 20px 55px rgba(0,0,0,.45), 0 3px 12px rgba(0,0,0,.3);
  --preview-bg:linear-gradient(160deg,#26200F,#1A160C);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{overflow-x:clip}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,"PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased;transition:background .25s,color .25s}
.wrap{max-width:1120px;margin:0 auto;padding:0 30px}
/* header */
header.top{padding:26px 0 10px;display:flex;justify-content:space-between;align-items:center;gap:16px}
.brand{font-family:Georgia,"Times New Roman",serif;font-size:24px;letter-spacing:.02em}
.brand em{font-style:italic;color:var(--coral)}
.tnav{font-size:12px;letter-spacing:.24em;text-transform:uppercase;color:var(--soft);display:flex;gap:26px}
.tnav a{color:inherit;text-decoration:none}
.tnav a:hover{color:var(--coral)}
.topbtns{display:flex;gap:8px}
.tbtn{border:1px solid var(--line);background:var(--card);color:var(--ink);border-radius:999px;padding:7px 14px;font-size:12.5px;font-weight:600;cursor:pointer;transition:border-color .15s}
.tbtn:hover{border-color:var(--coral)}
.topline{height:1px;background:var(--line);margin-top:14px}
/* hero */
.hero{position:relative;display:grid;grid-template-columns:1.25fr .75fr;gap:50px;padding:38px 0 30px;align-items:center}
.hero::before{content:"";position:absolute;inset:-10px 0;pointer-events:none;opacity:.5;
  background-image:radial-gradient(var(--honey) 2.4px,transparent 2.5px),radial-gradient(var(--mint) 2.4px,transparent 2.5px),radial-gradient(var(--blush) 2.4px,transparent 2.5px),radial-gradient(var(--sky) 2.4px,transparent 2.5px);
  background-size:150px 150px,210px 210px,260px 260px,190px 190px;
  background-position:10px 20px,80px 90px,30px 150px,140px 40px;opacity:.14}
.hero>*{position:relative}
.kicker{font-size:12px;letter-spacing:.3em;text-transform:uppercase;color:var(--gold);margin-bottom:22px;font-weight:600}
h1{font-family:Georgia,"Times New Roman",serif;font-weight:400;font-size:clamp(34px,4.2vw,50px);line-height:1.18;letter-spacing:.005em}
h1 em{color:var(--coral)}
.hl{background:linear-gradient(transparent 60%,rgba(245,185,66,.5) 60%,rgba(245,185,66,.5) 97%,transparent 97%);padding:0 .08em;border-radius:2px}
.hl-mint{background:linear-gradient(transparent 60%,rgba(95,195,154,.45) 60%,rgba(95,195,154,.45) 97%,transparent 97%)}
.hl-blush{background:linear-gradient(transparent 60%,rgba(240,163,184,.5) 60%,rgba(240,163,184,.5) 97%,transparent 97%)}
.lede{margin-top:16px;font-size:16px;line-height:1.65;color:var(--soft);max-width:480px}
.herocard{position:relative;background:var(--card);border-radius:22px;box-shadow:var(--shadow);padding:32px 30px;border:1px solid var(--line)}
.herocard .row{display:flex;justify-content:space-between;align-items:baseline;padding:13px 0;border-bottom:1px solid var(--line);font-size:14.5px}
.herocard .row:last-child{border-bottom:none}
.herocard .k{color:var(--soft)}
.herocard .v{font-weight:700}
.herocard .v.ok{color:var(--mint)}
.herocard .row:nth-child(1) .v{color:var(--honey)}
.herocard .row:nth-child(2) .v{color:var(--sky)}
/* mascot */
.mascot{border-radius:50%;overflow:hidden;border:2px solid #fff;box-shadow:var(--shadow);background:#fff;flex-shrink:0}
.mascot img{display:block;width:100%;height:100%;object-fit:cover}
.mascot-herocard{position:absolute;top:-56px;right:-14px;width:102px;height:102px;transform:rotate(-6deg);z-index:2}
.mascot-peek{position:absolute;top:-64px;right:30px;width:118px;height:118px;transform:rotate(6deg);z-index:2}
.mascot-foot{width:66px;height:66px;margin:0 auto 8px;transform:rotate(3deg)}
.mascot-blog{width:130px;height:130px;margin:0 auto 18px;transform:rotate(-4deg)}
/* studio */
.studio{position:relative;background:var(--card);border-radius:28px;box-shadow:var(--shadow);padding:44px;margin:10px 0;border:1px solid var(--line)}
.shead{margin-bottom:22px}
.shead .over{font-size:11.5px;letter-spacing:.3em;text-transform:uppercase;color:var(--coral);font-weight:600;margin-bottom:10px}
.shead h2{font-family:Georgia,"Times New Roman",serif;font-weight:400;font-size:31px}
.grid{display:grid;grid-template-columns:1fr 350px;gap:44px}
.grid>*{min-width:0}
.previewCol{min-width:0}
.types{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:6px}
.types button{border:1px solid var(--line);background:var(--field);border-radius:14px;padding:12px 6px;font-family:inherit;font-size:13.5px;font-weight:600;color:var(--soft);cursor:pointer;transition:all .16s}
.types button small{display:block;font-size:10.5px;font-weight:400;margin-top:3px;letter-spacing:.04em}
.types button:hover{border-color:var(--honey);color:var(--ink);transform:translateY(-1px)}
.types button.on{background:var(--deep);border-color:var(--deep);color:#fff}
[data-theme="dark"] .types button.on{color:#16140F}
.types button.on small{opacity:.75}
.fl{font-size:11.5px;font-weight:700;letter-spacing:.22em;text-transform:uppercase;color:var(--soft);margin:22px 0 9px}
input[type=text],textarea,select{width:100%;border:1px solid var(--line);background:var(--field);border-radius:14px;padding:13px 15px;font-size:15px;font-family:inherit;color:var(--ink);outline:none;transition:border-color .15s,box-shadow .15s,background .15s}
input:focus,textarea:focus,select:focus{border-color:var(--honey);box-shadow:0 0 0 4px rgba(245,185,66,.18);background:var(--card)}
textarea{min-height:68px;resize:vertical}
.r2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.colorbox{display:flex;align-items:center;gap:12px;background:var(--field);border:1px solid var(--line);border-radius:14px;padding:9px 14px}
input[type=color]{width:42px;height:30px;border:1px solid var(--line);border-radius:8px;background:var(--card);padding:2px;cursor:pointer}
.hex{font-size:12.5px;color:var(--soft);font-variant-numeric:tabular-nums}
input[type=range]{width:100%;accent-color:var(--coral)}
.filebtn{display:inline-block;border:1px solid var(--line);background:var(--honeybg);border-radius:14px;padding:12px 20px;font-size:13.5px;font-weight:600;color:var(--ink);cursor:pointer}
.filebtn:hover{border-color:var(--honey)}
.hint{font-size:12.5px;color:var(--soft);margin-top:6px;opacity:.9}
.privnote{margin-top:18px;font-size:13px;line-height:1.65;color:var(--soft);background:var(--mintbg);border:1px dashed var(--mint);border-radius:14px;padding:12px 16px}
/* batch */
.batchActions{display:flex;gap:10px;margin:14px 0}
.btn-solid{background:var(--coral);color:#fff;border:none;border-radius:14px;padding:13px 26px;font-family:inherit;font-size:14.5px;font-weight:700;cursor:pointer}
.btn-solid:hover{filter:brightness(1.06)}
.btn-solid:disabled{opacity:.45;cursor:default}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--ink);border-radius:14px;padding:13px 26px;font-family:inherit;font-size:14.5px;font-weight:700;cursor:pointer}
.btn-ghost:disabled{opacity:.45;cursor:default}
.batchGrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px;margin-top:6px}
.bcell{background:var(--field);border:1px solid var(--line);border-radius:14px;padding:12px;text-align:center}
.bcell .bqr{background:#fff;border-radius:8px;padding:8px;margin-bottom:8px}
.bcell .bqr canvas,.bcell .bqr svg{width:100%;height:auto;display:block}
.bcell .blabel{font-size:11.5px;color:var(--soft);word-break:break-all;margin-bottom:8px;min-height:2.2em}
.bcell button{border:1px solid var(--line);background:var(--card);color:var(--ink);border-radius:10px;padding:7px 14px;font-size:12.5px;font-weight:700;cursor:pointer;font-family:inherit}
/* preview */
.previewCol{background:var(--preview-bg);border-radius:22px;padding:32px 26px;display:flex;flex-direction:column;align-items:center;gap:18px;border:1px solid var(--line);align-self:start;position:sticky;top:20px}
.qrpaper{background:#fff;border-radius:18px;padding:24px;box-shadow:0 14px 36px rgba(190,145,60,.16)}
#qrbox{width:236px;height:236px;max-width:100%;display:flex;align-items:center;justify-content:center;overflow:hidden}
#qrbox canvas,#qrbox svg{width:100%!important;height:auto!important;max-width:236px;display:block}
.livenote{font-family:Georgia,"Times New Roman",serif;font-style:italic;font-size:13.5px;color:var(--soft);text-align:center}
.dlrow{display:flex;gap:10px;width:100%}
.dlrow button{flex:1;border-radius:14px;padding:14px 0;font-family:inherit;font-size:14.5px;font-weight:700;cursor:pointer;transition:transform .15s,box-shadow .15s}
#dlPng{background:var(--deep);color:#fff;border:none;box-shadow:0 10px 24px rgba(47,74,98,.28)}
[data-theme="dark"] #dlPng{color:#16140F}
#dlPng:hover{transform:translateY(-2px)}
#dlSvg{background:var(--card);border:1px solid var(--honey);color:var(--ink)}
#dlSvg:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(245,185,66,.2)}
/* principles — dopamine pastels */
.prins{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:70px 0 10px}
.prin{border-radius:22px;padding:32px 30px;border:1px solid var(--line);box-shadow:0 12px 32px rgba(190,145,60,.08)}
.prin:nth-child(1){background:var(--peach)}
.prin:nth-child(2){background:var(--mintbg)}
.prin:nth-child(3){background:var(--skybg)}
.prin .no{font-family:Georgia,serif;font-style:italic;font-size:15px;margin-bottom:14px;letter-spacing:.1em}
.prin:nth-child(1) .no{color:#C07A2B}
.prin:nth-child(2) .no{color:#2E8B62}
.prin:nth-child(3) .no{color:#3A76C4}
.prin h3{font-family:Georgia,serif;font-weight:400;font-size:21px;margin-bottom:10px}
.prin p{font-size:14.5px;line-height:1.7;color:var(--soft)}
/* faq */
.faq{max-width:700px;margin:70px auto 30px}
.faq h2{font-family:Georgia,serif;font-weight:400;font-size:32px;text-align:center;margin-bottom:28px}
details{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:20px 24px;margin-bottom:12px}
details:nth-of-type(3n+1){border-left:4px solid var(--honey)}
details:nth-of-type(3n+2){border-left:4px solid var(--mint)}
details:nth-of-type(3n+3){border-left:4px solid var(--sky)}
summary{font-weight:700;font-size:15.5px;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}
summary::-webkit-details-marker{display:none}
summary::after{content:"＋";color:var(--coral);font-weight:400;flex-shrink:0}
details[open] summary::after{content:"－"}
details p{margin-top:10px;font-size:14.5px;line-height:1.7;color:var(--soft)}
footer{margin-top:40px;padding:36px 0 50px;text-align:center}
footer .fin{font-family:Georgia,serif;font-style:italic;color:var(--soft);font-size:14px}
footer .rule{width:44px;height:1px;background:var(--gold);margin:18px auto}
.flinks{margin:20px 0 4px;font-size:13px;color:var(--soft)}
.flinks a{color:inherit;text-decoration:none;margin:0 10px;white-space:nowrap}
.flinks a:hover{color:var(--coral)}
.lplinks{margin:18px 0 6px;font-size:12.5px;color:var(--soft);line-height:2}
.lplinks a{color:inherit;text-decoration:none;margin:0 8px;white-space:nowrap}
.lplinks a:hover{color:var(--coral)}
footer .tiny{font-size:11px;letter-spacing:.26em;text-transform:uppercase;color:var(--soft)}
/* landing steps */
.lp-hero{grid-template-columns:1fr 1fr;align-items:start}
.steps{list-style:none;margin:6px 0 0;padding:0;display:grid;gap:12px}
.steps li{display:flex;gap:14px;align-items:flex-start;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:15px 17px;font-size:14.5px;line-height:1.6;color:var(--soft)}
.steps .sn{flex-shrink:0;width:26px;height:26px;border-radius:50%;font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:1px;color:#fff}
.steps li:nth-child(1) .sn{background:var(--coral)}
.steps li:nth-child(2) .sn{background:var(--honey)}
.steps li:nth-child(3) .sn{background:var(--mint)}
.steps b{color:var(--ink);font-weight:600;display:block;margin-bottom:2px}
@media(max-width:960px){.lp-hero{grid-template-columns:1fr}}
/* blog article */
.article{max-width:720px;margin:0 auto;padding:20px 0 10px}
.article .meta{font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--soft);margin:18px 0 0}
.prose{font-size:17px;line-height:1.85;color:var(--ink)}
.prose p{margin:0 0 1.4em}
.prose h2{font-family:Georgia,serif;font-weight:400;font-size:26px;margin:2em 0 .8em;line-height:1.3}
.prose h3{font-size:18px;margin:1.6em 0 .6em}
.prose ul,.prose ol{margin:0 0 1.4em;padding-left:1.4em}
.prose li{margin-bottom:.5em}
.prose li::marker{color:var(--coral)}
.prose a{color:var(--deep);text-decoration-color:var(--honey);text-underline-offset:3px}
.prose strong{font-weight:700}
.prose blockquote{border-left:4px solid var(--honey);background:var(--honeybg);border-radius:0 14px 14px 0;padding:16px 22px;margin:0 0 1.4em;font-family:Georgia,serif;font-style:italic;font-size:18px}
.cta-card{margin:44px 0;background:var(--mintbg);border:1px solid var(--mint);border-radius:22px;padding:30px 32px;display:flex;gap:20px;align-items:center}
.cta-card .mascot{width:84px;height:84px}
.cta-card h3{font-family:Georgia,serif;font-weight:400;font-size:21px;margin-bottom:8px}
.cta-card p{font-size:14.5px;color:var(--soft);margin-bottom:14px;line-height:1.6}
.cta-card a.btn{display:inline-block;background:var(--deep);color:#fff;text-decoration:none;font-weight:700;font-size:14.5px;border-radius:14px;padding:12px 26px}
[data-theme="dark"] .cta-card a.btn{color:#16140F}
/* developers */
.endpoint{background:var(--field);border:1px solid var(--line);border-radius:14px;padding:16px 20px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13.5px;margin:0 0 14px;overflow-x:auto;white-space:nowrap}
.endpoint .m{color:var(--coral);font-weight:700}
pre.code{background:#232D3B;color:#E8EEF5;border-radius:16px;padding:22px 24px;font-size:13.5px;line-height:1.7;overflow-x:auto;margin:0 0 26px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}
[data-theme="dark"] pre.code{background:#0D0B08}
.devgrid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:26px 0}
.devcard{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:24px}
.devcard:nth-child(1){border-top:4px solid var(--honey)}
.devcard:nth-child(2){border-top:4px solid var(--mint)}
.devcard:nth-child(3){border-top:4px solid var(--sky)}
.devcard:nth-child(4){border-top:4px solid var(--blush)}
.devcard h3{font-size:16px;margin-bottom:8px}
.devcard p{font-size:14px;color:var(--soft);line-height:1.65}
/* responsive */
@media(max-width:960px){
  .hero{grid-template-columns:1fr;gap:26px;padding:30px 0 24px}
  .grid{grid-template-columns:1fr}
  .previewCol{position:static;order:-1}
  .studio{padding:30px 22px}
  .devgrid{grid-template-columns:1fr}
}
@media(max-width:820px){
  .prins{display:block;margin:52px 0 10px}
  .prin{width:100%;margin-bottom:18px}
  .prin:last-child{margin-bottom:0}
}
@media(max-width:640px){
  .wrap{padding:0 18px}
  header.top{padding:18px 0 8px}
  .brand{font-size:21px}
  .tnav{display:none}
  .kicker{font-size:11px;letter-spacing:.18em;margin-bottom:12px}
  h1{font-size:clamp(30px,8.5vw,38px)}
  .lede{font-size:15px;margin-top:12px}
  .hero{padding:24px 0 18px;gap:0}
  .herocard{display:none}
  .mascot-peek{width:84px;height:84px;top:-46px;right:14px}
  .studio{padding:26px 18px;border-radius:22px;margin:6px 0}
  .shead{margin-bottom:14px}
  .shead h2{font-size:24px}
  .shead .over{margin-bottom:6px}
  .types{grid-template-columns:repeat(2,1fr);gap:8px}
  .types button{padding:14px 6px}
  .r2{grid-template-columns:1fr}
  .previewCol{padding:24px 18px;border-radius:18px}
  #qrbox{width:210px;height:210px}
  .qrpaper{padding:18px}
  input[type=text],textarea,select{font-size:16px;padding:14px 15px}
  .dlrow button{padding:15px 0}
  .faq{margin:52px auto 24px}
  .faq h2{font-size:26px}
  details{padding:18px}
  summary{font-size:15px}
  .batchGrid{grid-template-columns:repeat(2,1fr);gap:10px}
  .cta-card{flex-direction:column;text-align:center}
  footer{padding:28px 0 40px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}