/* =============================================================
   1. Tokens
   ============================================================= */
:root{
  --bg:#f7f6f2; --panel:#ffffff; --panel-2:#f2f1ec; --border:#e2e0d8;
  --text:#1b1b22; --muted:#6b6b76; --accent:#1b8a6b; --accent-ink:#f2f1ec;
  --danger:#c0392b; --warn:#b8860b; --ok:#1b8a6b;
  --cream:#f2f1ec; --ink:#1b1b22;
  --sans:"Sora",system-ui,sans-serif;
  --body:"Manrope",system-ui,sans-serif;
  --radius:16px; --radius-sm:10px;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* =============================================================
   2. Reset & base
   ============================================================= */
*,*::before,*::after{box-sizing:border-box;margin:0}
html{-webkit-text-size-adjust:100%;tab-size:2}
body{
  background:var(--bg); color:var(--text);
  font-family:var(--body); font-size:16px; line-height:1.6;
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
  overflow-x:clip; overscroll-behavior-y:none;
}
img,svg,video{display:block;max-width:100%}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
a{color:inherit;text-decoration:none}
p{text-wrap:pretty}
h1,h2,h3,h4{font-family:var(--sans);text-wrap:balance;line-height:1.15;letter-spacing:-0.01em}
::selection{background:var(--accent);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.is-hidden{display:none !important}
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

.skip-link{position:fixed;top:-100px;left:1rem;padding:.6rem 1rem;background:var(--ink);color:#fff;z-index:9999;border-radius:8px;font-weight:600}
.skip-link:focus{top:1rem}

/* =============================================================
   3. Utilities
   ============================================================= */
.container{max-width:1120px;margin:0 auto;padding:0 1.25rem}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.85rem 1.4rem;border-radius:999px;font-weight:700;font-size:.92rem;transition:transform .18s var(--ease-out),background .18s var(--ease-out),border-color .18s var(--ease-out)}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--accent)}
.btn-secondary{background:var(--panel);color:var(--text);border:1px solid var(--border)}
.btn-secondary:hover{border-color:var(--accent);color:var(--accent)}
.btn-link{background:none;color:var(--muted);text-decoration:underline;font-size:.85rem;padding:.4rem}
.btn-file{position:relative}
.pill{display:inline-block;font-size:.6em;font-weight:800;background:var(--accent);color:#fff;padding:.25em .65em;border-radius:999px;vertical-align:middle;margin-left:.5em;text-transform:uppercase;letter-spacing:.04em}

/* =============================================================
   4. Header / footer
   ============================================================= */
.site-header{padding:1.1rem 0;border-bottom:1px solid var(--border);position:sticky;top:0;background:rgba(247,246,242,.9);backdrop-filter:blur(6px);z-index:100}
.header-row{display:flex;align-items:center;justify-content:space-between;gap:1rem}
.logo{display:flex;align-items:center;gap:.5rem;font-family:var(--sans);font-weight:800;font-size:1.15rem;color:var(--ink)}
.site-nav{display:none;gap:1.4rem;color:var(--muted);font-size:.92rem;font-weight:600}
.site-nav a:hover{color:var(--accent)}
@media (min-width:720px){.site-nav{display:flex}}

.site-footer{border-top:1px solid var(--border);padding:2rem 0;margin-top:3rem;color:var(--muted);font-size:.88rem}
.footer-row{display:flex;flex-wrap:wrap;gap:1rem;justify-content:space-between;align-items:center}
.footer-row nav{display:flex;gap:1.2rem}
.footer-row nav a:hover{color:var(--accent)}

/* =============================================================
   5. Hero
   ============================================================= */
.hero{padding:2.6rem 1.25rem 1.6rem;text-align:center}
.hero h1{font-size:clamp(1.8rem,4.2vw,2.7rem);margin-bottom:.8rem;color:var(--ink)}
.hero-sub{color:var(--muted);max-width:680px;margin:0 auto;font-size:1.06rem}

/* =============================================================
   6. Tool card
   ============================================================= */
.tool-section{padding-bottom:1rem}
.tool-card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:1.6rem;box-shadow:0 24px 60px -34px rgba(27,27,34,.35)}

.tool-block{margin-bottom:1.6rem;padding-bottom:1.6rem;border-bottom:1px solid var(--border)}
.tool-block:last-of-type{border-bottom:0;padding-bottom:0;margin-bottom:0}
.tool-block-3d{background:linear-gradient(180deg,rgba(27,138,107,.06),transparent 40%);border-radius:var(--radius-sm);padding:1.2rem;margin-left:-1.2rem;margin-right:-1.2rem;padding-left:1.2rem;padding-right:1.2rem}
.block-title{font-size:1.15rem;margin-bottom:1rem;color:var(--ink)}

.mode-tabs{display:flex;gap:.5rem;margin-bottom:1rem}
.mode-tab{padding:.6rem 1.1rem;border-radius:999px;border:1px solid var(--border);background:var(--panel-2);font-weight:700;font-size:.88rem;color:var(--muted)}
.mode-tab.is-active{background:var(--ink);color:#fff;border-color:var(--ink)}
.mode-panel.is-hidden{display:none}

.field-label{display:block;font-size:.82rem;font-weight:700;color:var(--muted);margin-bottom:.4rem}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:.8rem;margin-bottom:.9rem}
input[type=text],input[type=color],select{
  width:100%;padding:.75rem .9rem;border-radius:var(--radius-sm);border:1px solid var(--border);
  background:var(--panel-2);color:var(--text);font:inherit;
}
input[type=color]{padding:.3rem;height:2.8rem;cursor:pointer}
select{appearance:auto}
input:focus,select:focus{border-color:var(--accent)}
#inputLink{margin-bottom:0}

.design-grid{display:grid;gap:1.6rem}
@media (min-width:900px){.design-grid{grid-template-columns:1.1fr 1fr;align-items:start}}
.style-grid{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1rem}
.style-opt{padding:.55rem 1.05rem;border-radius:999px;border:1px solid var(--border);background:var(--panel-2);font-size:.85rem;font-weight:700;color:var(--muted);transition:all .15s var(--ease-out)}
.style-opt:hover{border-color:var(--accent)}
.style-opt.is-active{background:var(--ink);color:#fff;border-color:var(--ink)}

.color-row{display:grid;grid-template-columns:1fr 1fr;gap:.8rem;margin-bottom:1rem}

.center-row{display:flex;flex-wrap:wrap;align-items:center;gap:.6rem}
.emoji-picker{display:flex;flex-wrap:wrap;gap:.4rem}
.emoji-opt{width:2.5rem;height:2.5rem;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--panel-2);font-size:1.15rem;display:flex;align-items:center;justify-content:center}
.emoji-opt.is-active{border-color:var(--accent);background:rgba(27,138,107,.12)}

.design-preview{display:flex;flex-direction:column;align-items:center;gap:1rem}
.qr-preview-box{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:1.1rem;display:flex;align-items:center;justify-content:center;min-height:280px;width:100%}
.qr-preview-box canvas,.qr-preview-box img{max-width:100%;height:auto;border-radius:6px}
.download-row{display:flex;flex-wrap:wrap;gap:.7rem;justify-content:center;width:100%}

/* =============================================================
   7. 3D panel
   ============================================================= */
.format-grid{display:grid;gap:.7rem;grid-template-columns:1fr;margin-bottom:1rem}
@media (min-width:640px){.format-grid{grid-template-columns:repeat(3,1fr)}}
.format-opt{text-align:left;padding:.9rem 1rem;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--panel-2)}
.format-opt.is-active{border-color:var(--accent);background:rgba(27,138,107,.08);box-shadow:inset 0 0 0 1px var(--accent)}
.format-name{display:block;font-weight:800;color:var(--ink);margin-bottom:.15rem}
.format-desc{display:block;color:var(--muted);font-size:.8rem}

.preview-3d-wrap{margin:1rem 0}
.preview-3d{position:relative;background:linear-gradient(180deg,#eef0ea,#e4e6de);border-radius:var(--radius);min-height:300px;overflow:hidden;border:1px solid var(--border)}
.preview-3d canvas{display:block;width:100%;height:100%}
.preview-3d-placeholder{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:.9rem;text-align:center;padding:1rem}
.preview-3d-hint{text-align:center;color:var(--muted);font-size:.8rem;margin-top:.5rem}

.print-warnings{display:flex;flex-direction:column;gap:.4rem;margin:1rem 0}
.warn-item{font-size:.82rem;padding:.6rem .8rem;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--panel-2)}
.warn-item.is-ok{color:var(--ok);border-color:rgba(27,138,107,.4)}
.warn-item.is-warn{color:var(--warn);border-color:rgba(184,134,11,.4)}
.warn-item.is-danger{color:var(--danger);border-color:rgba(192,57,43,.4)}

.privacy-badge{margin-top:1.2rem;color:var(--muted);font-size:.85rem}
.limits-note{margin-top:.5rem;color:var(--muted);font-size:.78rem}

/* =============================================================
   8. Ad slots + popup + toast
   ============================================================= */
.ad-slot{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:90px;border:1px dashed var(--border);border-radius:var(--radius-sm);margin:1.6rem auto;color:var(--muted);font-size:.8rem;background:repeating-linear-gradient(45deg,rgba(0,0,0,.02),rgba(0,0,0,.02) 10px,transparent 10px,transparent 20px)}
.ad-slot--incontent{min-height:110px}
.ad-slot-label{font-weight:800;letter-spacing:.1em;font-size:.72rem;color:var(--muted);border:1px solid var(--border);padding:.25em .7em;border-radius:4px}
.ad-slot--dialog{width:100%}
.ad-slot--corner{width:100%;min-height:60px;margin:.6rem 0 0}

.dl-dialog{border:1px solid var(--border);border-radius:var(--radius);background:var(--panel);color:var(--text);padding:1.6rem;max-width:400px;width:90vw;position:relative}
.dl-dialog::backdrop{background:rgba(27,27,34,.55)}
.dl-dialog-close{position:absolute;top:.7rem;right:.8rem;font-size:1.3rem;width:2rem;height:2rem;border-radius:999px;background:var(--panel-2)}
.dl-dialog-continue{margin-top:1rem;width:100%}

.corner-toast{position:fixed;bottom:1rem;right:1rem;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius-sm);padding:1rem 1.1rem;max-width:220px;z-index:500;box-shadow:0 14px 34px -14px rgba(27,27,34,.4)}
.corner-toast-close{position:absolute;top:.35rem;right:.5rem;font-size:1.05rem;width:1.6rem;height:1.6rem}

/* =============================================================
   9. Content sections
   ============================================================= */
.content-section{padding:3rem 1.25rem}
.content-section h2{font-size:1.7rem;margin-bottom:1.6rem;text-align:center;color:var(--ink)}
.content-section--seo{max-width:800px;margin:0 auto;text-align:left}
.content-section--seo p{color:var(--muted);margin-bottom:1rem}
.content-section--seo h2{text-align:left}

.steps{display:grid;gap:1.4rem;list-style:none}
@media (min-width:720px){.steps{grid-template-columns:repeat(3,1fr)}}
.steps li{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:1.4rem}
.step-num{width:2.2rem;height:2.2rem;border-radius:999px;background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;margin-bottom:.8rem}
.steps h3{font-size:1.05rem;margin-bottom:.5rem;color:var(--ink)}
.steps p{color:var(--muted);font-size:.92rem}

.ideas-grid{display:grid;gap:1.2rem}
@media (min-width:720px){.ideas-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.ideas-grid{grid-template-columns:repeat(3,1fr)}}
.idea-card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:1.3rem}
.idea-card h3{font-size:1.02rem;margin-bottom:.5rem;color:var(--ink)}
.idea-card p{color:var(--muted);font-size:.88rem}

.faq-list{max-width:780px;margin:0 auto}
.faq-item{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius-sm);padding:.95rem 1.15rem;margin-bottom:.7rem}
.faq-item summary{cursor:pointer;font-weight:700;color:var(--ink)}
.faq-item p{color:var(--muted);margin-top:.6rem;font-size:.92rem}

/* =============================================================
   10. Reduced motion
   ============================================================= */
@media (prefers-reduced-motion: reduce){
  .btn{transition:none}
}