/* QR Hut - shared styles for every page */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--primary:#059669;--primary-light:#d1fae5;--primary-dark:#047857;--bg:#f9fafb;--white:#fff;--gray-50:#f9fafb;--gray-100:#f3f4f6;--gray-200:#e5e7eb;--gray-300:#d1d5db;--gray-400:#9ca3af;--gray-500:#6b7280;--gray-600:#4b5563;--gray-700:#374151;--gray-800:#1f2937;--gray-900:#111827;--warn-bg:#fffbeb;--warn-border:#f59e0b;--warn-text:#92400e;--radius:12px;--shadow:0 1px 3px rgba(0,0,0,.1),0 1px 2px rgba(0,0,0,.06)}
html{-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;background:var(--bg);color:var(--gray-800);line-height:1.6;min-height:100vh}
img,svg,canvas,video{max-width:100%}
[hidden]{display:none!important}
a{color:var(--primary-dark)}
.container{max-width:1100px;margin:0 auto;padding:0 20px}
.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:-9999px;top:8px;background:var(--gray-900);color:#fff;padding:8px 14px;border-radius:8px;z-index:300}
.skip-link:focus{left:8px}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

/* Header and main navigation (works without JavaScript) */
header{background:var(--white);border-bottom:1px solid var(--gray-200);position:sticky;top:0;z-index:100}
.header-inner{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px 20px;padding:12px 20px}
.logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700;color:var(--gray-900);text-decoration:none}
.logo-icon{width:34px;height:34px;background:var(--primary);border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;flex-shrink:0}
.logo-icon svg{width:20px;height:20px}
.main-nav{display:flex;flex-wrap:wrap;gap:2px 4px}
.main-nav a{display:block;padding:6px 10px;border-radius:8px;color:var(--gray-600);text-decoration:none;font-size:14px;font-weight:500;white-space:nowrap}
.main-nav a:hover{background:var(--gray-100);color:var(--gray-900)}
.main-nav a[aria-current="page"]{background:var(--primary-light);color:var(--primary-dark)}
@media(max-width:900px){
  header{position:static}
  .header-inner{padding:10px 12px}
  .main-nav{width:100%;gap:4px}
  .main-nav a{padding:6px 10px;background:var(--gray-50);border:1px solid var(--gray-200);font-size:13px}
}

/* Page intro */
.breadcrumbs{font-size:13px;color:var(--gray-500);margin:18px 0 6px}
.breadcrumbs a{color:var(--gray-500);text-decoration:none}
.breadcrumbs a:hover{color:var(--primary-dark);text-decoration:underline}
.page-intro{padding-bottom:4px}
.page-intro h1{font-size:30px;line-height:1.25;font-weight:700;color:var(--gray-900);margin:4px 0 8px}
.lead{font-size:17px;color:var(--gray-600);max-width:820px}
.meta-line{font-size:14px;color:var(--gray-500);margin:0 0 10px}
@media(max-width:640px){.page-intro h1{font-size:24px}.lead{font-size:16px}.container{padding:0 12px}}

/* Buttons */
.btn{padding:10px 20px;border:none;border-radius:8px;cursor:pointer;font-size:14px;font-weight:600;transition:.2s;display:inline-flex;align-items:center;gap:6px;text-decoration:none;font-family:inherit}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-outline{background:var(--white);color:var(--primary-dark);border:1px solid var(--primary)}
.btn-outline:hover{background:var(--primary-light)}
.btn-row{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 6px}

/* Cards and tool layout */
.card{background:var(--white);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.card-title{font-size:16px;font-weight:600;color:var(--gray-800);margin-bottom:16px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.card-title svg{width:20px;height:20px;color:var(--primary);flex-shrink:0}
.tool{margin:20px 0 8px}
.gen-layout{display:grid;grid-template-columns:1fr 1fr;gap:24px}
@media(max-width:800px){.gen-layout{grid-template-columns:1fr}.card{padding:16px}}

/* Generator type switcher (links to the other generator pages) */
.type-tabs{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:16px}
.type-tab{padding:6px 14px;border:1px solid var(--gray-200);border-radius:20px;background:var(--white);font-size:13px;color:var(--gray-600);text-decoration:none;transition:.2s}
.type-tab:hover{border-color:var(--gray-400);color:var(--gray-900)}
.type-tab[aria-current="page"]{background:var(--primary-light);border-color:var(--primary);color:var(--primary-dark);font-weight:600}

/* Form elements */
.form-group{margin-bottom:16px}
.form-label{display:block;font-size:13px;font-weight:600;color:var(--gray-600);margin-bottom:6px}
.form-input,.form-select,.form-textarea{width:100%;padding:10px 12px;border:1px solid var(--gray-300);border-radius:8px;font-size:15px;color:var(--gray-800);background:var(--white);transition:.2s;outline:none;font-family:inherit}
.form-input:focus,.form-select:focus,.form-textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(5,150,105,.12)}
.form-input:disabled{background:var(--gray-100);color:var(--gray-400)}
.form-textarea{resize:vertical;min-height:84px}
.form-hint{font-size:12px;color:var(--gray-500);margin-top:4px}
.check-label{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--gray-700);cursor:pointer}
.sub-fields{padding:14px;background:var(--gray-50);border-radius:8px;border:1px solid var(--gray-200);margin-bottom:16px}
.sub-fields .form-group:last-child{margin-bottom:0}
.option-row{display:flex;gap:12px;flex-wrap:wrap}
.option-row .form-group{flex:1;min-width:130px}
.color-input-wrap{display:flex;align-items:center;gap:8px}
.color-input-wrap input[type=color]{width:40px;height:36px;border:1px solid var(--gray-300);border-radius:6px;cursor:pointer;padding:2px;background:var(--white)}
.color-input-wrap span{font-size:13px;color:var(--gray-500);font-family:ui-monospace,Menlo,Consolas,monospace}
.logo-upload-area{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.logo-upload-btn{padding:8px 14px;background:var(--gray-100);border:1px solid var(--gray-300);border-radius:8px;cursor:pointer;font-size:13px;color:var(--gray-700)}
.logo-upload-btn:hover{background:var(--gray-200)}
.visually-hidden:focus-visible+.logo-upload-btn,.visually-hidden:focus-visible+.upload-zone{outline:2px solid var(--primary);outline-offset:2px}
.logo-preview{width:40px;height:40px;border-radius:6px;object-fit:contain;border:1px solid var(--gray-200);background:var(--white)}
.link-btn{background:none;border:none;color:#b91c1c;font-size:13px;cursor:pointer;text-decoration:underline;font-family:inherit}

/* Preview */
.qr-preview-area{display:flex;flex-direction:column;align-items:center;gap:12px}
.qr-frame{background:var(--white);padding:16px;border-radius:var(--radius);box-shadow:0 0 0 1px var(--gray-200);display:flex;align-items:center;justify-content:center;min-height:200px;min-width:200px;max-width:100%}
#qr-canvas{display:block;width:256px;max-width:100%;height:auto}
.qr-placeholder{color:var(--gray-500);font-size:14px;text-align:center;padding:40px 16px;max-width:260px}
.qr-meta{font-size:13px;color:var(--gray-500);text-align:center}
.qr-warnings{list-style:none;width:100%;display:flex;flex-direction:column;gap:8px}
.qr-warnings li{background:var(--warn-bg);border:1px solid var(--warn-border);color:var(--warn-text);border-radius:8px;padding:8px 12px;font-size:13px;line-height:1.5}
.download-btns{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.payload{width:100%;font-size:13px;color:var(--gray-600)}
.payload summary{cursor:pointer;font-weight:600}
.payload pre{margin-top:8px;padding:10px;background:var(--gray-50);border:1px solid var(--gray-200);border-radius:8px;white-space:pre-wrap;word-break:break-all;font-size:12px;max-height:220px;overflow:auto}
@media(max-width:640px){.download-btns{flex-direction:column;width:100%}.download-btns .btn{justify-content:center}}

/* Scanner */
.scan-layout{max-width:760px;margin:0 auto}
.upload-zone{display:block;border:2px dashed var(--gray-300);border-radius:var(--radius);padding:36px 20px;text-align:center;cursor:pointer;transition:.2s;background:var(--white)}
.upload-zone:hover,.upload-zone.dragover{border-color:var(--primary);background:var(--primary-light)}
.upload-zone svg{display:block;width:44px;height:44px;color:var(--gray-400);margin:0 auto 8px}
.upload-zone span{display:block}
.upload-title{font-size:16px;font-weight:600;color:var(--gray-700)}
.upload-zone .hint{font-size:13px;color:var(--gray-500);margin-top:4px}
.camera-section{margin-top:16px}
.camera-btn{width:100%;padding:12px;border:1px solid var(--gray-300);border-radius:var(--radius);background:var(--white);cursor:pointer;font-size:15px;font-weight:500;color:var(--gray-700);display:flex;align-items:center;justify-content:center;gap:8px;transition:.2s;font-family:inherit}
.camera-btn:hover{border-color:var(--primary);color:var(--primary-dark)}
.camera-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.camera-box{margin-top:12px;position:relative;border-radius:var(--radius);overflow:hidden;background:#000}
.camera-box video{width:100%;display:block}
.camera-overlay{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:min(60%,240px);aspect-ratio:1;border:3px solid rgba(255,255,255,.75);border-radius:12px;pointer-events:none}
.camera-status{font-size:13px;color:var(--gray-600);margin-top:8px;min-height:1em}
.result-card{margin-top:16px;border-top:1px solid var(--gray-200);padding-top:16px}
.result-item{display:flex;align-items:flex-start;gap:12px;padding:12px;border:1px solid var(--gray-200);border-radius:8px;margin-bottom:8px;background:var(--white)}
.result-index{background:var(--primary-light);color:var(--primary-dark);min-width:28px;height:28px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;flex-shrink:0}
.result-body{flex:1;min-width:0}
.result-file{display:block;font-size:12px;color:var(--gray-500);word-break:break-all}
.result-type{display:inline-block;font-size:12px;font-weight:600;color:var(--primary-dark);background:var(--primary-light);border-radius:10px;padding:1px 8px;margin:2px 0 4px}
.result-text{font-size:14px;color:var(--gray-800);white-space:pre-wrap;word-break:break-all;font-family:ui-monospace,Menlo,Consolas,monospace}
.result-link{display:inline-block;margin-top:6px;font-size:13px}
.result-error{font-size:14px;color:#b91c1c}
.copy-btn{padding:5px 12px;background:var(--gray-100);border:1px solid var(--gray-300);border-radius:6px;cursor:pointer;font-size:12px;color:var(--gray-700);flex-shrink:0;font-family:inherit}
.copy-btn:hover{background:var(--gray-200)}
.copy-btn.copied{background:var(--primary-light);color:var(--primary-dark);border-color:var(--primary)}
.batch-info{font-size:12px;color:var(--gray-500);font-weight:400}

/* Long-form content */
.prose{max-width:820px;margin:0 auto;padding-top:12px;padding-bottom:12px;font-size:16px;line-height:1.75;color:var(--gray-700)}
.prose h2{font-size:23px;line-height:1.3;color:var(--gray-900);margin:36px 0 12px}
.prose h3{font-size:18px;line-height:1.4;color:var(--gray-900);margin:24px 0 8px}
.prose p{margin:0 0 14px}
.prose ul,.prose ol{margin:0 0 16px;padding-left:24px}
.prose li{margin:0 0 8px}
.prose code{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.88em;padding:1px 5px;border-radius:4px;background:var(--gray-100);word-break:break-all}
.prose pre{background:var(--gray-900);color:#e5e7eb;border-radius:8px;padding:14px 16px;overflow-x:auto;margin:0 0 16px;font-size:13px;line-height:1.6}
.prose pre code{background:none;padding:0;color:inherit;word-break:normal}
.prose table{width:100%;border-collapse:collapse;margin:0 0 18px;font-size:14px;background:var(--white)}
.prose th,.prose td{border:1px solid var(--gray-200);padding:8px 10px;text-align:left;vertical-align:top}
.prose th{background:var(--gray-100);color:var(--gray-900)}
.table-wrap{overflow-x:auto;margin:0 0 18px}
.table-wrap table{margin:0;min-width:520px}
.note{background:var(--primary-light);border-left:4px solid var(--primary);border-radius:0 8px 8px 0;padding:12px 16px;margin:0 0 16px;color:var(--gray-800)}
.toc{background:var(--white);border:1px solid var(--gray-200);border-radius:var(--radius);padding:14px 20px;margin:8px 0 20px}
.toc p{font-weight:600;color:var(--gray-900);margin:0 0 6px}
.toc ol{margin:0;padding-left:20px}
.toc li{margin:0 0 4px}
.faq h3{margin-top:20px}
.small-print{font-size:13px;color:var(--gray-500)}
.prose .checklist{list-style:none;padding-left:0}
.prose .checklist li{padding-left:28px;position:relative}
.prose .checklist li::before{content:'';position:absolute;left:2px;top:6px;width:14px;height:14px;border:2px solid var(--primary);border-radius:3px}

/* Tool and guide cards */
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;margin:0 0 20px}
.tool-card{display:flex;flex-direction:column;gap:6px;background:var(--white);border:1px solid var(--gray-200);border-radius:var(--radius);padding:18px;text-decoration:none;color:var(--gray-700);transition:.2s}
.tool-card:hover{border-color:var(--primary);box-shadow:var(--shadow)}
.tool-card strong{color:var(--gray-900);font-size:17px}
.tool-card span{font-size:14px;line-height:1.6}
.tool-card em{font-style:normal;font-size:14px;font-weight:600;color:var(--primary-dark);margin-top:auto}
.prose .card-grid{margin-top:4px}
.related{border-top:1px solid var(--gray-200);margin-top:32px;padding-top:8px}

/* Footer */
footer{background:var(--white);border-top:1px solid var(--gray-200);margin-top:48px;padding:24px 0;color:var(--gray-500)}
.footer-links{display:flex;justify-content:center;gap:8px 20px;margin-bottom:10px;flex-wrap:wrap}
.footer-link{color:var(--gray-500);font-size:13px;text-decoration:none}
.footer-link:hover{color:var(--primary-dark)}
.footer-guides{display:flex;flex-wrap:wrap;justify-content:center;gap:4px 14px;font-size:13px;margin-bottom:10px}
.footer-guides a{color:inherit}
.footer-copy{text-align:center;color:var(--gray-400);font-size:12px}

/* Toast */
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(120px);background:var(--gray-800);color:#fff;padding:10px 20px;border-radius:8px;font-size:14px;z-index:300;transition:transform .3s;pointer-events:none;max-width:90vw;text-align:center}
.toast.show{transform:translateX(-50%) translateY(0)}