:root{--ink:#292522;--muted:#706861;--brand:#574a41;--sand:#bdaf96;--paper:#f5f2ec;--white:#fff;--line:#ded7cb;--green:#176b54;--blue:#275d83;--red:#a43a36;--shadow:0 18px 50px rgba(63,52,45,.12)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Tahoma","Arial",sans-serif;line-height:1.7}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit}.site-header{background:var(--brand);color:#fff;border-bottom:5px solid var(--sand)}.header-inner{width:min(1080px,calc(100% - 32px));min-height:78px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:11px;text-decoration:none}.brand img{width:48px;height:48px;border-radius:8px;background:var(--sand);object-fit:cover}.brand span{display:grid;line-height:1.25}.brand strong{font-size:1.1rem}.brand small{color:#e0d7c7}.site-header nav{display:flex;align-items:center;gap:18px;font-size:.88rem}.site-header nav a{text-decoration:none;color:#f3eee7}.header-action{border:1px solid rgba(255,255,255,.45);background:transparent;color:#fff;padding:7px 12px;border-radius:6px;cursor:pointer}
main{width:min(1080px,calc(100% - 32px));margin:auto}.intro{padding:42px 0 28px;display:flex;justify-content:space-between;align-items:end;gap:24px}.eyebrow{display:block;color:var(--brand);font-weight:800;font-size:.82rem}.intro h1{font-size:clamp(2rem,5vw,3.4rem);line-height:1.2;margin:8px 0}.intro p{max-width:680px;margin:0;color:var(--muted);font-size:1.04rem}.network-badge{flex:0 0 auto;color:var(--green);border:1px solid #b9d5c8;background:#edf7f2;padding:8px 12px;border-radius:6px;font-size:.8rem;font-weight:700}
.scanner-shell{background:var(--white);border:1px solid var(--line);box-shadow:var(--shadow);margin-bottom:30px}.mode-tabs{height:56px;display:flex;border-bottom:1px solid var(--line)}.mode-tab{min-width:130px;border:0;border-left:1px solid var(--line);background:#faf9f7;color:var(--muted);font-weight:800;cursor:pointer}.mode-tab.active{background:var(--brand);color:#fff}.mode-panel{padding:28px}.camera-frame{position:relative;aspect-ratio:16/8;max-height:440px;background:#272421;overflow:hidden}.camera-frame video{display:block;width:100%;height:100%;object-fit:cover}.camera-empty{position:absolute;inset:0;display:grid;place-content:center;text-align:center;color:#eee7dc;padding:24px}.camera-empty strong{font-size:1.25rem}.camera-empty small{color:#cfc6bb}.barcode-symbol{direction:ltr;font:700 2.3rem/1 monospace;letter-spacing:2px;margin-bottom:14px}.scan-guide{position:absolute;inset:12%;border:2px solid rgba(255,255,255,.92);pointer-events:none;z-index:2}.scan-guide::before,.scan-guide::after,.scan-guide span::before,.scan-guide span::after{content:"";position:absolute;width:38px;height:38px;border-color:var(--sand);border-style:solid}.scan-guide::before{right:-3px;top:-3px;border-width:5px 5px 0 0}.scan-guide::after{left:-3px;top:-3px;border-width:5px 0 0 5px}.scan-guide span::before{right:-3px;bottom:-3px;border-width:0 5px 5px 0}.scan-guide span::after{left:-3px;bottom:-3px;border-width:0 0 5px 5px}.camera-actions,.result-actions{display:flex;align-items:center;gap:10px;margin-top:18px}.button,.icon-button{min-height:44px;border:1px solid var(--line);border-radius:6px;background:#fff;color:var(--brand);padding:9px 18px;font-weight:800;cursor:pointer}.button.primary{background:var(--brand);border-color:var(--brand);color:#fff}.icon-button{width:44px;padding:0;font-size:1.4rem}.helper{font-size:.8rem;color:var(--muted);margin:8px 0 0}.mode-panel label{display:block;font-weight:800;margin-bottom:8px}.input-row{display:grid;grid-template-columns:1fr auto;gap:10px}.input-row input{width:100%;min-height:52px;border:1px solid var(--line);border-radius:6px;padding:10px 14px;color:var(--ink);outline:none;direction:ltr;text-align:left;font-size:1.1rem}.input-row input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(87,74,65,.12)}
.result-section{background:#fff;border-top:7px solid var(--sand);padding:30px;margin-bottom:30px;box-shadow:var(--shadow)}.result-heading{display:flex;align-items:center;gap:16px;margin-bottom:22px}.result-heading small,.section-heading span{color:var(--muted);font-size:.76rem}.result-heading h2{margin:0;font-size:1.65rem}.result-flag{width:64px;height:54px;display:grid;place-items:center;background:var(--paper);font-size:2.1rem;border:1px solid var(--line)}.result-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin:0}.result-grid div{background:#fff;padding:16px;min-width:0}.result-grid dt{font-size:.75rem;color:var(--muted);font-weight:700}.result-grid dd{margin:4px 0 0;font-weight:800;overflow-wrap:anywhere}.valid{color:var(--green)}.invalid{color:var(--red)}.origin-notice{margin-top:20px;border-right:5px solid var(--blue);background:#edf5fa;padding:14px 16px}.origin-notice strong{color:var(--blue)}.origin-notice p{margin:3px 0 0;color:#455663;font-size:.9rem}
.history-section,.explain-section{padding:30px 0;border-top:1px solid var(--line)}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:18px}.section-heading h2,.explain-section h2{margin:2px 0;font-size:1.35rem}.text-button{border:0;background:transparent;color:var(--red);cursor:pointer;font-weight:700}.history-list{display:grid;gap:8px}.history-item{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);padding:13px 15px}.history-item .flag{font-size:1.5rem}.history-item strong,.history-item span{display:block}.history-item span{font-size:.8rem;color:var(--muted);direction:ltr;text-align:right}.history-item time{font-size:.72rem;color:var(--muted)}.history-item button{border:0;background:transparent;cursor:pointer;text-align:right}.empty-state{margin:0;color:var(--muted);background:#ebe6dd;padding:18px}.explain-section p{color:var(--muted);max-width:820px;margin:6px 0 0}
footer{width:min(1080px,calc(100% - 32px));margin:20px auto 0;padding:25px 0 35px;border-top:1px solid var(--line);display:flex;gap:22px;flex-wrap:wrap;color:var(--muted);font-size:.8rem}footer span{font-weight:800;color:var(--brand)}footer a{margin-inline-start:auto}.toast{position:fixed;left:20px;bottom:20px;background:#272421;color:#fff;padding:11px 15px;border-radius:6px;opacity:0;transform:translateY(12px);transition:.2s;pointer-events:none;z-index:20}.toast.show{opacity:1;transform:none}
.policy-main{width:min(820px,calc(100% - 32px))}.policy-document{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);padding:40px;margin:38px 0}.policy-document h1{font-size:clamp(2rem,5vw,3rem);margin:8px 0}.policy-lead{font-size:1.05rem;color:var(--muted);border-bottom:1px solid var(--line);padding-bottom:22px}.policy-document h2{font-size:1.15rem;margin:26px 0 4px;color:var(--brand)}.policy-document p{margin:0;color:#554f4a}.policy-document a{color:var(--blue)}
@media(max-width:760px){.header-inner{min-height:70px}.brand img{width:42px;height:42px}.site-header nav{gap:10px;font-size:.75rem}.intro{padding:30px 0 22px;align-items:start;flex-direction:column}.intro h1{font-size:2.1rem}.scanner-shell{margin-inline:-16px;border-inline:0}.mode-panel{padding:18px 16px}.camera-frame{aspect-ratio:4/5;max-height:520px}.scan-guide{inset:17% 8%}.input-row{grid-template-columns:1fr}.input-row .button{width:100%}.result-section{padding:22px 16px;margin-inline:-16px}.result-grid{grid-template-columns:1fr 1fr}.result-actions .button{flex:1;padding-inline:10px}.history-item{grid-template-columns:auto 1fr}.history-item time{grid-column:2}.policy-document{padding:24px 19px;margin-inline:-8px}.policy-main{width:calc(100% - 32px)}footer a{margin-inline-start:0}}
@media(max-width:400px){.brand small{display:none}.site-header nav a{max-width:90px;line-height:1.3}.result-grid{grid-template-columns:1fr}.camera-actions{flex-wrap:wrap}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* Camera preview stays uncropped and the overlay remains deliberately quiet. */
.camera-frame{aspect-ratio:4/3;max-height:560px;background:#171513}
.camera-frame video{object-fit:contain}
.camera-frame video::-webkit-media-controls,.camera-frame video::-webkit-media-controls-overlay-play-button{display:none!important;-webkit-appearance:none}
.scan-guide{inset:auto;left:9%;right:9%;top:50%;height:2px;border:0;background:#fff;box-shadow:0 0 0 1px rgba(0,0,0,.22),0 0 12px rgba(255,255,255,.55)}
.scan-guide::before,.scan-guide::after{content:"";position:absolute;top:-12px;width:4px;height:26px;background:var(--sand);border:0}
.scan-guide::before{right:0}.scan-guide::after{left:0}
.camera-actions{margin-top:14px}.camera-status{text-align:center;min-height:24px}
@media(max-width:760px){.mode-panel{padding:14px 10px 16px}.camera-frame{aspect-ratio:3/4;max-height:70vh}}