/* QR3D — generador de códigos QR para imprimir en 3D */
:root{
  --bg:#F7F6F2; --card:#FFFFFF; --ink:#16161D; --ink-2:#4A4A55; --muted:#7A7A86;
  --line:#E6E4DD; --line-2:#D9D6CC; --accent:#FF6B2C; --accent-ink:#C2410C; --accent-soft:#FFF1EA;
  --ok:#15803D; --ok-soft:#ECFDF3; --warn:#B45309; --warn-soft:#FFF7E6; --bad:#B91C1C; --bad-soft:#FEF2F2;
  --r:16px; --r-s:10px; --shadow:0 1px 2px rgba(22,22,29,.04),0 8px 28px rgba(22,22,29,.06);
  --font:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.55 var(--font);overflow-x:hidden}
img,svg,canvas{max-width:100%}
a{color:var(--accent-ink)}
h1,h2,h3{line-height:1.2;letter-spacing:-.015em;margin:0}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 16px}

/* header */
.site-header{background:rgba(247,246,242,.88);backdrop-filter:saturate(1.4) blur(8px);-webkit-backdrop-filter:saturate(1.4) blur(8px);position:sticky;top:0;z-index:20;border-bottom:1px solid var(--line)}
.header-in{display:flex;align-items:center;justify-content:space-between;height:60px}
.brand{display:flex;align-items:center;gap:9px;text-decoration:none;color:var(--ink);font-weight:800;font-size:20px;letter-spacing:-.02em}
.brand b{color:var(--accent)}
.nav{display:flex;gap:22px}
.nav a{color:var(--ink-2);text-decoration:none;font-weight:500;font-size:15px}
.nav a:hover{color:var(--ink)}

/* hero */
.hero{padding-top:28px;padding-bottom:18px;text-align:center}
.hero h1{font-size:clamp(28px,4.6vw,46px);font-weight:800}
.hero .sub{max-width:720px;margin:10px auto 0;color:var(--ink-2);font-size:clamp(15px,1.8vw,18px)}
.noscript{background:var(--warn-soft);border:1px solid #F5D9A8;padding:14px;border-radius:var(--r-s);text-align:center}

/* tool grid */
.tool{display:grid;gap:16px;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  grid-template-areas:"content preview" "design preview" "obj preview";align-items:start}
.p-content{grid-area:content}.p-preview{grid-area:preview;position:sticky;top:76px}
.p-design{grid-area:design}.p-3d{grid-area:obj}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:20px;box-shadow:var(--shadow);min-width:0}
.step{font-size:18px;font-weight:700;display:flex;align-items:center;gap:10px;margin-bottom:14px}
.num{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:50%;background:var(--ink);color:#fff;font-size:14px;font-weight:700;flex:none}
.mini{font-size:15px;font-weight:700}
label,.lbl{display:block;font-size:14px;font-weight:600;color:var(--ink-2);margin:0 0 6px}
.lbl .opt{font-weight:400;color:var(--muted)}
fieldset{border:0;margin:0 0 16px;padding:0;min-width:0}
legend{font-size:14px;font-weight:600;color:var(--ink-2);margin-bottom:8px;padding:0}
input[type=text],input[type=url],textarea,select{width:100%;font:inherit;font-size:16px;color:var(--ink);background:#fff;border:1.5px solid var(--line-2);border-radius:var(--r-s);padding:11px 12px;outline:none;transition:border-color .15s,box-shadow .15s}
textarea{resize:vertical}
input:focus,textarea:focus,select:focus{border-color:var(--ink);box-shadow:0 0 0 3px rgba(22,22,29,.08)}
.hint{font-size:13.5px;color:var(--muted);margin:7px 0 0}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:14px}
.row2:last-child{margin-bottom:0}
.check{display:flex;align-items:center;gap:8px;align-self:end;padding-bottom:12px;font-weight:500}
.check input{width:18px;height:18px;accent-color:var(--ink)}
.prefix{display:flex;align-items:stretch}
.prefix span{display:grid;place-items:center;padding:0 12px;background:var(--bg);border:1.5px solid var(--line-2);border-right:0;border-radius:var(--r-s) 0 0 var(--r-s);font-weight:700;color:var(--muted)}
.prefix input{border-radius:0 var(--r-s) var(--r-s) 0}

/* segmented modes */
.seg{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px}
.seg button{font:inherit;font-size:14px;font-weight:600;border:1.5px solid var(--line-2);background:#fff;color:var(--ink-2);padding:7px 12px;border-radius:999px;cursor:pointer;transition:all .15s}
.seg button:hover{border-color:var(--ink-2)}
.seg button.on{background:var(--ink);border-color:var(--ink);color:#fff}
.f{display:none}
.p-content[data-mode=url] .f-url,.p-content[data-mode=resenas] .f-resenas,.p-content[data-mode=instagram] .f-instagram,
.p-content[data-mode=wifi] .f-wifi,.p-content[data-mode=text] .f-text{display:block}

/* preview */
.prev-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.tag{font-size:12px;font-weight:700;color:var(--ink-2);background:var(--bg);border:1px solid var(--line);padding:3px 8px;border-radius:999px}
.tag.hot{background:var(--accent-soft);color:var(--accent-ink);border-color:#FFD6C2}
.prev-2d{display:grid;grid-template-columns:minmax(0,1fr);gap:0;padding-bottom:16px;margin-bottom:16px;border-bottom:1px dashed var(--line-2)}
.qr2d{width:min(100%,230px);aspect-ratio:1;margin:0 auto;border-radius:12px;overflow:hidden;background:#fff;box-shadow:0 0 0 1px var(--line)}
.qr2d svg,.qr2d canvas{display:block;width:100%!important;height:100%!important}
.warn2d{font-size:13px;color:var(--warn);background:var(--warn-soft);border-radius:8px;padding:6px 10px;margin:10px 0 0;text-align:center}
.dl2d{display:flex;gap:8px;justify-content:center;margin-top:12px;flex-wrap:wrap}
.dl2d select{width:auto;padding:8px 10px;font-size:14px}
.viewer{position:relative;height:300px;border-radius:12px;overflow:hidden;background:radial-gradient(120% 90% at 50% 20%,#FFFFFF 0%,#EFEDE6 70%,#E6E3DA 100%);box-shadow:inset 0 0 0 1px var(--line);touch-action:none}
.viewer canvas{display:block;width:100%!important;height:100%!important;cursor:grab}
.viewer canvas:active{cursor:grabbing}
.viewer-msg{position:absolute;inset:0;display:grid;place-items:center;text-align:center;padding:20px;color:var(--muted);font-size:14px;font-weight:500;pointer-events:none}
.viewer[data-state=ready] .viewer-msg{display:none}
.viewer[data-state=loading] .viewer-msg::before{content:"";display:block;width:26px;height:26px;margin:0 auto 10px;border-radius:50%;border:3px solid var(--line-2);border-top-color:var(--accent);animation:spin .8s linear infinite}
.viewer[data-state=busy]::after{content:"";position:absolute;top:10px;right:10px;width:16px;height:16px;border-radius:50%;border:2.5px solid var(--line-2);border-top-color:var(--accent);animation:spin .8s linear infinite}
.viewer[data-state=busy] .viewer-msg{display:none}
@keyframes spin{to{transform:rotate(360deg)}}
.viewer-hint{position:absolute;left:10px;bottom:9px;font-size:12px;color:var(--muted);background:rgba(255,255,255,.75);padding:3px 8px;border-radius:999px;pointer-events:none}
.print-info{list-style:none;margin:12px 0;padding:0;display:grid;gap:6px;font-size:13.5px}
.print-info li{padding:7px 10px;border-radius:8px;background:var(--bg);color:var(--ink-2);line-height:1.4}
.print-info li.ok{background:var(--ok-soft);color:var(--ok)}
.print-info li.warn{background:var(--warn-soft);color:var(--warn)}
.print-info li.bad{background:var(--bad-soft);color:var(--bad);font-weight:600}
.print-info b{color:inherit}
.print-info .fix{font:inherit;font-size:13px;font-weight:700;margin-left:4px;padding:3px 10px;border-radius:999px;border:1.5px solid currentColor;background:#fff;color:inherit;cursor:pointer}

/* buttons */
.btn{font:inherit;font-weight:700;font-size:15px;border-radius:var(--r-s);padding:10px 16px;cursor:pointer;border:1.5px solid transparent;transition:transform .08s,background .15s,border-color .15s;display:inline-flex;align-items:center;justify-content:center;gap:6px;text-decoration:none}
.btn:active{transform:translateY(1px)}
.btn.ghost{background:#fff;border-color:var(--line-2);color:var(--ink)}
.btn.ghost:hover{border-color:var(--ink)}
.btn.small{font-size:14px;padding:8px 12px}
.btn.primary{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(255,107,44,.28)}
.btn.primary:hover{background:#F25A18}
.btn.big{width:100%;flex-direction:column;gap:2px;padding:14px 16px;font-size:17px}
.btn.big small{font-weight:500;font-size:12.5px;opacity:.9}
.btn[disabled]{opacity:.6;cursor:progress}
.link-btn{display:block;margin:10px auto 0;font:inherit;font-size:14px;color:var(--ink-2);background:none;border:0;text-decoration:underline;text-underline-offset:3px;cursor:pointer}
.link-btn:hover{color:var(--ink)}
.file{position:relative;overflow:hidden}
.file input{position:absolute;inset:0;opacity:0;cursor:pointer}

/* design */
.styles{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.styles legend{grid-column:1/-1}
.style-opt,.fmt{margin:0;cursor:pointer}
.style-opt input,.fmt input{position:absolute;opacity:0;pointer-events:none}
.style-opt span{display:flex;flex-direction:column;align-items:center;gap:6px;padding:10px 4px;border:1.5px solid var(--line-2);border-radius:var(--r-s);font-size:13px;font-weight:600;color:var(--ink-2);transition:all .15s}
.style-opt svg{width:30px;height:30px;fill:var(--ink)}
.style-opt input:checked+span,.fmt input:checked+span{border-color:var(--ink);background:var(--bg);color:var(--ink);box-shadow:0 0 0 1px var(--ink)}
.style-opt input:focus-visible+span,.fmt input:focus-visible+span{outline:3px solid rgba(255,107,44,.45);outline-offset:2px}
.colors{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.color{display:flex;align-items:center;gap:10px;flex:1;margin:0;padding:8px 10px;border:1.5px solid var(--line-2);border-radius:var(--r-s);cursor:pointer;font-weight:600}
.color input{width:34px;height:34px;border:0;padding:0;background:none;cursor:pointer;flex:none}
.color input::-webkit-color-swatch-wrapper{padding:0}
.color input::-webkit-color-swatch{border:1px solid var(--line-2);border-radius:8px}
.color input::-moz-color-swatch{border:1px solid var(--line-2);border-radius:8px}
.swap{font:inherit;font-size:18px;width:38px;height:38px;border-radius:50%;border:1.5px solid var(--line-2);background:#fff;cursor:pointer;flex:none}
.emoji-grid{display:grid;grid-template-columns:repeat(10,1fr);gap:5px;margin-bottom:10px}
.emoji-grid button{font-size:20px;line-height:1;aspect-ratio:1;border:1.5px solid var(--line);background:#fff;border-radius:8px;cursor:pointer;padding:0;transition:all .12s}
.emoji-grid button:hover{border-color:var(--ink-2);transform:scale(1.06)}
.emoji-grid button.on{border-color:var(--ink);background:var(--bg);box-shadow:0 0 0 1px var(--ink)}
.center-actions{display:flex;gap:8px;flex-wrap:wrap}

/* 3d panel */
.formats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.formats legend{grid-column:1/-1}
.fmt span{display:flex;flex-direction:column;align-items:center;text-align:center;gap:2px;padding:12px 6px;border:1.5px solid var(--line-2);border-radius:var(--r-s);color:var(--ink-2);height:100%;transition:all .15s}
.fmt svg{width:46px;height:38px;color:var(--ink);margin-bottom:4px}
.fmt b{font-size:14px;color:var(--ink)}
.fmt small{font-size:12px;color:var(--muted)}
.label-row{grid-template-columns:1fr 130px}
.filaments{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:14px}
.swatches{display:flex;flex-wrap:wrap;gap:6px}
.swatches button,.swatches label{width:28px;height:28px;border-radius:50%;border:2px solid #fff;box-shadow:0 0 0 1.5px var(--line-2);cursor:pointer;padding:0;margin:0;position:relative}
.swatches button.on{box-shadow:0 0 0 2.5px var(--ink)}
.swatches label{background:conic-gradient(#f43f5e,#f59e0b,#84cc16,#06b6d4,#6366f1,#d946ef,#f43f5e);overflow:hidden}
.swatches label.on{box-shadow:0 0 0 2.5px var(--ink)}
.swatches label input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;height:100%}
input[type=range]{width:100%;accent-color:var(--accent);height:30px}
output{color:var(--ink);font-weight:700}
.privacy{text-align:center;font-size:14px;color:var(--ink-2);margin:16px 0 0}

/* ads (placeholders) */
.ad-slot{display:grid;place-items:center;border:1.5px dashed #C9C5B9;border-radius:12px;background:repeating-linear-gradient(45deg,#F1EFE9,#F1EFE9 10px,#ECEAE3 10px,#ECEAE3 20px);color:#9A968A;font-size:12px;font-weight:700;letter-spacing:.18em}
.ad-leaderboard{min-height:100px;margin:28px auto 0;max-width:970px}
.ad-incontent{min-height:250px;margin:8px auto 0;max-width:728px}
.ad-pop{border:0;border-radius:18px;padding:22px;width:min(360px,calc(100vw - 32px));box-shadow:0 30px 80px rgba(0,0,0,.3);text-align:center;color:var(--ink)}
.ad-pop::backdrop{background:rgba(22,22,29,.55)}
.ad-pop[open]{animation:pop .2s ease-out}
@keyframes pop{from{opacity:0;transform:scale(.96)}to{opacity:1;transform:none}}
.ad-pop-ok{margin:0 0 12px;font-weight:700}
.ad-pop-slot{width:100%;min-height:250px;margin-bottom:14px}
.ad-x{position:absolute;top:8px;right:8px;width:30px;height:30px;border-radius:50%;border:0;background:var(--bg);color:var(--ink);font-size:14px;cursor:pointer;z-index:2}
.ad-toast{position:fixed;right:16px;bottom:16px;z-index:30;width:min(300px,calc(100vw - 32px));background:#fff;border-radius:14px;padding:10px;box-shadow:0 14px 40px rgba(0,0,0,.18);animation:pop .25s ease-out}
.ad-toast[hidden]{display:none}
.ad-toast-slot{min-height:100px}
.ad-toast .ad-x{top:-10px;right:-10px;box-shadow:0 2px 8px rgba(0,0,0,.2);background:#fff}

/* content sections */
.section{padding-top:56px}
.section>h2{font-size:clamp(23px,3vw,32px);font-weight:800;margin-bottom:22px;text-align:center}
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.steps li{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px}
.ico{width:46px;height:46px;border-radius:12px;background:var(--accent-soft);display:grid;place-items:center;margin-bottom:12px}
.ico svg{width:24px;height:24px;fill:none;stroke:var(--accent-ink);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.steps h3,.idea h3{font-size:17px;margin-bottom:6px}
.steps p,.idea p{margin:0;color:var(--ink-2);font-size:15px}
.ideas{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.idea{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:20px}
.idea .em{font-size:28px;display:block;margin-bottom:8px}
.guide-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:28px}
.guide h3{font-size:17px;margin:0 0 6px}
.guide p{margin:0 0 18px;color:var(--ink-2)}
.guide p:last-child{margin-bottom:0}
.faq{max-width:820px;margin:0 auto;display:grid;gap:10px}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:0 18px}
.faq summary{cursor:pointer;font-weight:600;padding:16px 26px 16px 0;list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:0;top:12px;font-size:22px;color:var(--muted);font-weight:400}
.faq details[open] summary::after{content:"–"}
.faq details p{margin:0 0 16px;color:var(--ink-2)}
.site-footer{margin-top:64px;border-top:1px solid var(--line);background:#fff}
.foot-in{display:flex;justify-content:space-between;align-items:center;gap:16px;padding-top:24px;padding-bottom:24px;font-size:14px;color:var(--ink-2)}
.foot-in p{margin:0}
.foot-in nav{display:flex;gap:16px}
.foot-in a{color:var(--ink-2)}

/* legal pages */
.legal{max-width:780px;padding-top:40px}
.legal h1{font-size:32px;margin-bottom:16px}
.legal h2{font-size:20px;margin:28px 0 8px}
.legal p,.legal li{color:var(--ink-2)}

/* responsive */
@media (max-width:1020px){
  .ideas{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:860px){
  .tool{grid-template-columns:minmax(0,1fr);grid-template-areas:"content" "preview" "design" "obj"}
  .p-preview{position:static}
  .prev-2d{grid-template-columns:minmax(0,1fr)}
  .steps{grid-template-columns:1fr}
  .guide-grid{grid-template-columns:1fr;gap:0;padding:22px}
  .nav{display:none}
}
@media (max-width:520px){
  .hero{padding-top:18px;padding-bottom:12px}
  .hero .sub{font-size:15px}
  .panel{padding:16px}
  .ideas{grid-template-columns:1fr}
  .row2{grid-template-columns:1fr}
  .label-row{grid-template-columns:1fr 110px}
  .styles{grid-template-columns:repeat(4,1fr);gap:6px}
  .style-opt span{font-size:12px}
  .emoji-grid{grid-template-columns:repeat(8,1fr)}
  .filaments{grid-template-columns:1fr}
  .colors{flex-wrap:wrap}
  .color{min-width:0}
  .viewer{height:260px}
  .ad-toast{width:min(250px,calc(100vw - 32px));right:12px;bottom:12px;padding:8px}
  .ad-toast-slot{min-height:64px}
  .foot-in{flex-direction:column;align-items:flex-start}
  .section{padding-top:44px}
}