/* Scan giấy tờ – giao diện. Font hệ thống (chạy offline, không tải font ngoài). */
:root{
  --bg:#f3f4f1;--card:#fff;--text:#14181d;--muted:#667079;--line:#e2e5e1;
  --brand:#0e7c66;--brand-dark:#0a5f4e;--brand-soft:#e3f3ee;
  --ok:#14804a;--warn:#a85d00;--err:#c0392b;
  --ink:#0d1116;--radius:18px;
  font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  -webkit-text-size-adjust:100%;
}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--bg);color:var(--text);font-size:16px;line-height:1.5;min-height:100vh}
html.ov-open,html.ov-open body{overflow:hidden}
button{font:inherit;cursor:pointer;-webkit-tap-highlight-color:transparent}
svg{display:block}
[hidden]{display:none!important}

/* ---------- Trang chủ ---------- */
.home{width:min(640px,100%);margin:0 auto;padding:calc(20px + env(safe-area-inset-top)) 16px calc(28px + env(safe-area-inset-bottom))}
.top{display:flex;align-items:center;gap:14px;margin:6px 2px 18px}
.logo{flex:none;width:52px;height:52px;border-radius:15px;background:var(--brand);display:grid;place-items:center;box-shadow:0 6px 18px #0e7c6640}
.logo svg{width:28px;height:28px;fill:none;stroke:#fff;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.top h1{margin:0;font-size:24px;letter-spacing:-.4px;line-height:1.2}
.top p{margin:2px 0 0;color:var(--muted);font-size:14.5px}
.top>div:nth-child(2){flex:1;min-width:0}
.top-link{flex:none;display:flex;flex-direction:column;align-items:center;gap:2px;padding:8px 10px;border-radius:14px;background:var(--card);border:1px solid var(--line);color:var(--text);text-decoration:none;font-size:12.5px;font-weight:650}
.top-link:hover{border-color:var(--brand);color:var(--brand-dark)}
.top-link svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;margin-bottom:14px}
.hero{padding:22px 18px;text-align:center}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}
.card h2{margin:0;font-size:17px}
.pill{font-size:13px;font-weight:650;color:var(--brand-dark);background:var(--brand-soft);padding:4px 10px;border-radius:999px;white-space:nowrap}
.muted{color:var(--muted)}
.small{font-size:13px;margin:6px 0 0}
.sub{margin:2px 0 0}
.status{margin:12px 0 0;font-size:14px;color:var(--muted);display:flex;align-items:center;justify-content:center;gap:8px}
.status::before{content:'';width:8px;height:8px;border-radius:50%;background:#c3c8c4;flex:none}
.status[data-tone=loading]::before{background:var(--warn);animation:pulse 1s ease-in-out infinite}
.status[data-tone=ok]::before{background:var(--ok)}
.status[data-tone=err]{color:var(--err)}
.status[data-tone=err]::before{background:var(--err)}
.home-message{margin:12px 0 0;padding:10px 12px;border-radius:12px;background:#fff5e8;color:#7a4300;font-size:14px}

.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(96px,1fr));gap:10px}
.g-item{position:relative;transition:opacity .2s,transform .2s}
.g-item a{position:relative;display:block;aspect-ratio:3/4;border-radius:12px;overflow:hidden;background:#e9ebe7;border:1px solid var(--line)}
.g-item img{width:100%;height:100%;object-fit:cover;display:block}
.g-item.new a{outline:3px solid var(--brand);outline-offset:-3px;animation:pop .4s ease}
.g-item.deleting{opacity:.45;pointer-events:none}
.g-item.gone{opacity:0;transform:scale(.85)}
.g-time{position:absolute;left:6px;bottom:6px;font-size:11px;font-weight:650;background:#000000a6;color:#fff;padding:1px 7px;border-radius:999px;white-space:nowrap}
.g-del{position:absolute;top:5px;right:5px;display:flex;align-items:center;gap:4px;height:30px;min-width:30px;padding:0 7px;border:0;border-radius:999px;background:#000000a6;color:#fff;transition:background-color .15s}
.g-del svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.g-del b{display:none;font-size:12px;font-weight:700}
.g-del:hover{background:#000000d0}
.g-del.armed{background:var(--err)}
.g-del.armed b{display:inline}
.g-del:focus-visible{outline:3px solid #5fb9a4;outline-offset:1px}

/* ---------- Nút ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:50px;padding:12px 20px;border-radius:14px;border:0;font-weight:650;font-size:16px;transition:background-color .15s ease,transform .1s ease,opacity .15s}
.btn:active{transform:scale(.98)}
.btn:disabled{opacity:.5;cursor:default;transform:none}
.btn.primary{background:var(--brand);color:#fff}
.btn.primary:hover:not(:disabled){background:var(--brand-dark)}
.btn.secondary{background:var(--card);color:var(--text);border:1px solid var(--line)}
.btn.secondary:hover:not(:disabled){background:var(--bg)}
.btn.big{width:100%;min-height:62px;font-size:18px;border-radius:16px;box-shadow:0 8px 22px #0e7c6633}
.btn.big svg{width:26px;height:26px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.btn:focus-visible,.icon-btn:focus-visible,.switch input:focus-visible+.track{outline:3px solid #5fb9a4;outline-offset:2px}

/* ---------- Màn hình toàn trang (quét / xem trước) ---------- */
.overlay{position:fixed;inset:0;z-index:50;display:flex;flex-direction:column;background:var(--ink);color:#fff;padding:env(safe-area-inset-top) env(safe-area-inset-right) 0 env(safe-area-inset-left);animation:fade .2s ease both}
.overlay>*{width:min(620px,100%);margin-inline:auto}
.ov-head{display:flex;align-items:center;gap:10px;padding:14px 16px 12px;flex:none}
.ov-heading{flex:1;min-width:0}
.eyebrow{font-size:11px;letter-spacing:2px;font-weight:750;color:#ffffff8c}
.ov-head h2{margin:0;font-size:19px;font-weight:650;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.meta{font-size:12.5px;color:#ffffffa6;white-space:nowrap}
.icon-btn{flex:none;display:grid;place-items:center;width:42px;height:42px;border:0;border-radius:50%;background:#ffffff1f;color:#fff;padding:0}
.icon-btn:hover{background:#ffffff33}
.icon-btn svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}

.stage{position:relative;flex:1;min-height:0;border-radius:22px;overflow:hidden;background:#000}
@media(max-width:640px){.stage{width:calc(100% - 20px)}}
.camera,.camera>div{position:absolute;inset:0;width:100%;height:100%}
.camera video{object-fit:cover}
.loading{position:absolute;inset:0;display:grid;place-content:center;justify-items:center;gap:14px;background:var(--ink);color:#ffffffcc;font-size:14px;text-align:center;padding:20px}
.spin{width:34px;height:34px;border:3px solid #ffffff33;border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}
.flash{position:absolute;inset:0;background:#fff;opacity:0;pointer-events:none}
.flash.on{animation:flash .38s ease}

.sheet{flex:none;margin-top:12px;padding:16px 18px calc(16px + env(safe-area-inset-bottom));background:var(--card);color:var(--text);border-radius:24px 24px 0 0;box-shadow:0 -10px 40px #0000004d}
@media(min-width:641px){.sheet{margin-bottom:16px;border-radius:24px}}
.hint{margin:0;min-height:1.5em;text-align:center;font-size:15px;font-weight:550}
.hint[data-tone=ok]{color:var(--ok)}
.hint[data-tone=warn]{color:var(--warn)}
.hint[data-tone=err]{color:var(--err)}
.sheet .muted.small{text-align:center}

.switch{display:flex;align-items:center;justify-content:center;gap:10px;margin-top:12px;font-size:14.5px;cursor:pointer;user-select:none}
.switch input{position:absolute;opacity:0;width:1px;height:1px}
.track{position:relative;flex:none;width:44px;height:26px;border-radius:999px;background:#cfd4d0;transition:background .2s}
.track::after{content:'';position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:50%;background:#fff;box-shadow:0 1px 3px #0004;transition:transform .2s}
.switch input:checked+.track{background:var(--brand)}
.switch input:checked+.track::after{transform:translateX(18px)}

/* Xem trước */
.photo{display:grid;place-items:center;background:#05070a;padding:12px}
.photo img{max-width:100%;max-height:100%;object-fit:contain;border-radius:6px;box-shadow:0 8px 30px #000a;transition:opacity .25s,filter .25s}
.review[data-state=uploading] .photo img{opacity:.75}
.done-badge{position:absolute;inset:0;margin:auto;width:92px;height:92px;border-radius:50%;background:var(--ok);display:grid;place-items:center;box-shadow:0 10px 30px #0008;opacity:0;transform:scale(.6);pointer-events:none;transition:opacity .25s,transform .35s cubic-bezier(.2,1.6,.4,1)}
.done-badge svg{width:50px;height:50px;fill:none;stroke:#fff;stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round}
.review[data-state=done] .done-badge{opacity:1;transform:scale(1)}
.note{margin:0 0 10px;padding:8px 12px;border-radius:10px;background:#fff5e8;color:#7a4300;font-size:13.5px;text-align:center}

.progress{display:flex;align-items:center;gap:12px;margin:0 0 10px}
.progress-track{flex:1;height:10px;border-radius:999px;background:#e6e9e5;overflow:hidden}
.progress-bar{height:100%;width:0;border-radius:inherit;background:var(--brand);transition:width .15s linear}
.progress.indeterminate .progress-bar{width:35%!important;animation:slide 1s ease-in-out infinite}
.progress-text{flex:none;min-width:42px;text-align:right;font-variant-numeric:tabular-nums;font-weight:650;font-size:14px;color:var(--brand-dark)}

.actions{display:none;gap:10px;margin-top:14px}
.actions .btn{flex:1}
.review[data-state=ready] .actions[data-for~=ready],
.review[data-state=error] .actions[data-for~=error],
.review[data-state=uploading] .actions[data-for~=uploading],
.review[data-state=done] .actions[data-for~=done]{display:flex}

@keyframes fade{from{opacity:0}to{opacity:1}}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes flash{0%{opacity:0}30%{opacity:.65}100%{opacity:0}}
@keyframes pulse{50%{opacity:.35}}
@keyframes pop{0%{transform:scale(.85)}100%{transform:scale(1)}}
@keyframes slide{0%{transform:translateX(-110%)}100%{transform:translateX(310%)}}
@media(prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;transition:none!important}}

/* ---------- Popup xem ảnh lớn (assets/lightbox.js) ---------- */
html.lb-open,html.lb-open body{overflow:hidden}
.lb{position:fixed;inset:0;z-index:100;background:#05070afa;color:#fff;animation:fade .15s ease both}
.lb-bar{position:absolute;top:0;left:0;right:0;z-index:2;display:flex;align-items:center;gap:10px;padding:calc(10px + env(safe-area-inset-top)) 12px 10px 16px;background:linear-gradient(#000a,#0000)}
.lb-count{font-weight:700;font-size:14px;font-variant-numeric:tabular-nums}
.lb-cap{flex:1;min-width:0;font-size:13px;color:#ffffffb3;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lb-btn{flex:none;display:grid;place-items:center;width:42px;height:42px;border:0;border-radius:50%;background:#ffffff26;color:#fff;padding:0}
.lb-btn:hover{background:#ffffff40}
.lb-btn svg,.lb-nav svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.lb-stage{position:absolute;inset:0;display:flex;overflow:hidden;padding:64px 16px calc(20px + env(safe-area-inset-bottom))}
.lb-stage img{margin:auto;max-width:100%;max-height:100%;object-fit:contain;border-radius:4px;box-shadow:0 10px 40px #000;cursor:zoom-in;user-select:none;-webkit-user-drag:none}
.lb.zoomed .lb-stage{overflow:auto;padding:0;touch-action:pan-x pan-y pinch-zoom}
.lb.zoomed .lb-stage img{max-width:none;max-height:none;border-radius:0;cursor:zoom-out}
.lb-spin{position:absolute;inset:0;margin:auto;opacity:0;pointer-events:none}
.lb.loading .lb-spin{opacity:1}
.lb.loading .lb-stage img{opacity:.25}
.lb-nav{position:absolute;top:50%;z-index:2;transform:translateY(-50%);display:grid;place-items:center;width:46px;height:46px;border:0;border-radius:50%;background:#ffffff26;color:#fff;padding:0}
.lb-nav:hover{background:#ffffff40}
.lb-nav.prev{left:12px}.lb-nav.next{right:12px}
.lb-nav[hidden]{display:none}
.lb.zoomed .lb-nav{display:none}
.lb-btn:focus-visible,.lb-nav:focus-visible{outline:3px solid #5fb9a4;outline-offset:2px}
@media(hover:none){.lb-nav{display:none}} /* điện thoại: vuốt ngang */