:root{--do:#d4321f;--do-bg:#fdecea;--vang:#e07b00;--vang-bg:#fff4e3;--xam:#5a6470;--xam-bg:#eef1f4;--xanh:#1769aa;--xanh-bg:#eaf3fb;--text:#1c2430;--muted:#6b7480;--line:#e3e7ec;--bg:#f7f9fb;--card:#fff;--radius:12px;--maxw:720px}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;color:var(--text);background:var(--bg);line-height:1.55;font-size:16px}.container{max-width:var(--maxw);margin:0 auto;padding:20px 16px 64px}h1,h2,h3{line-height:1.3}h1{font-size:26px;margin:0 0 12px}h2{font-size:20px;margin:28px 0 12px}h3{font-size:17px;margin:0 0 6px}p{margin:0 0 12px}a{color:var(--xanh)}.muted{color:var(--muted)}.small{font-size:13px}.btn,.center{text-align:center}.btn{display:inline-block;background:var(--xanh);color:#fff;border:none;border-radius:var(--radius);padding:14px 22px;font-size:17px;font-weight:600;cursor:pointer;width:100%;-webkit-appearance:none}.btn:disabled{opacity:.5;cursor:not-allowed}.btn.secondary{background:#fff;color:var(--xanh);border:1.5px solid var(--xanh)}.btn.small-btn{width:auto;padding:8px 14px;font-size:14px}.hero{text-align:center;padding:12px 0 8px}.hero h1{font-size:28px}.hero .sub{font-size:17px;color:var(--muted);max-width:560px;margin:0 auto 8px}.dropzone{border:2px dashed #b9c4d0;border-radius:var(--radius);background:var(--card);padding:28px 18px;text-align:center;cursor:pointer;transition:border-color .15s,background .15s}.dropzone.drag{border-color:var(--xanh);background:var(--xanh-bg)}.dropzone .icon{font-size:34px}.filelist{list-style:none;padding:0;margin:12px 0 0;text-align:left}.filelist li{background:var(--xam-bg);border-radius:8px;padding:8px 12px;margin-bottom:6px;font-size:14px;display:flex;justify-content:space-between;gap:8px}.privacy-note{margin-top:10px}.disclaimer-line,.privacy-note{font-size:13px;color:var(--muted)}.disclaimer-line{margin:8px 0 0}.values{display:grid;grid-gap:12px;gap:12px;margin-top:24px}.value-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px}.value-card .v-icon{font-size:22px}.card{border:1px solid var(--line);border-radius:var(--radius);padding:16px;margin-bottom:14px}.card,.survey-option{background:var(--card)}.survey-option{display:flex;align-items:flex-start;gap:10px;border:1.5px solid var(--line);border-radius:10px;padding:12px 14px;margin-bottom:8px;cursor:pointer}.survey-option.checked{border-color:var(--xanh);background:var(--xanh-bg)}.survey-option input{margin-top:3px;width:18px;height:18px;flex:none}.progress-steps{list-style:none;padding:0;margin:20px 0}.progress-steps li{display:flex;align-items:center;gap:12px;padding:10px 0;color:var(--muted)}.progress-steps li.active{color:var(--text);font-weight:600}.progress-steps li.done{color:var(--text)}.step-dot{width:22px;height:22px;border-radius:50%;border:2px solid #c3cdd8;flex:none;display:flex;align-items:center;justify-content:center;font-size:13px}.progress-steps li.active .step-dot{border-color:var(--xanh)}.progress-steps li.done .step-dot{border-color:var(--xanh);background:var(--xanh);color:#fff}.spinner{width:20px;height:20px;border:3px solid #cfd8e2;border-top:3px solid var(--xanh);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}.result-header{text-align:center;padding:8px 0 4px}.badge{display:inline-block;padding:8px 16px;border-radius:999px;font-weight:700;font-size:16px}.badge.do{background:var(--do-bg);color:var(--do)}.badge.vang{background:var(--vang-bg);color:var(--vang)}.badge.xam{background:var(--xam-bg);color:var(--xam)}.metrics{display:grid;grid-template-columns:1fr;grid-gap:10px;gap:10px;margin:16px 0}.metric{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:14px}.metric .label{font-size:13px;color:var(--muted)}.metric .value{font-size:20px;font-weight:700;margin-top:2px}.metric .note{font-size:12px;color:var(--muted)}.flag{border-radius:var(--radius);padding:14px 16px;margin-bottom:12px;border-left:5px solid;background:var(--card);border:1px solid var(--line)}.flag.do{border-left-color:var(--do)}.flag.vang{border-left-color:var(--vang)}.flag .flag-head{display:flex;align-items:center;gap:8px;font-weight:700}.flag .flag-icon{font-size:18px}.flag .flag-id{font-size:12px;color:var(--muted);font-weight:600}.evidence{background:var(--xam-bg);border-radius:8px;padding:10px 12px;margin-top:10px;font-size:14px}.evidence blockquote{margin:0 0 6px;padding-left:10px;border-left:3px solid #c3cdd8;color:#3a434f}.evidence .page{font-size:12px;color:var(--muted)}.circumstance{border-radius:var(--radius);padding:16px;margin:16px 0}.circumstance.do{background:var(--do-bg);border:1px solid #f1b6ae}.circumstance.vang{background:var(--vang-bg);border:1px solid #f0cf9a}.circumstance.luu_y{background:var(--xam-bg);border:1px solid var(--line)}.special-message{background:var(--do);color:#fff;border-radius:10px;padding:14px;margin-top:12px;font-weight:600}.questions-block{background:var(--xanh-bg);border:1px solid #bcdcf3;border-radius:var(--radius);padding:16px;margin:16px 0}.questions-block ol{margin:8px 0 12px;padding-left:20px}.questions-block li{margin-bottom:8px}.collapsible summary{cursor:pointer;font-weight:600;padding:8px 0}.email-block{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;margin:16px 0}.email-row{display:flex;gap:8px;margin-top:8px}.email-row input{flex:1 1;padding:12px;border:1.5px solid var(--line);border-radius:10px;font-size:16px}.error-box{background:var(--do-bg);border:1px solid #f1b6ae;border-radius:var(--radius);padding:16px}.footer{border-top:1px solid var(--line);margin-top:32px;padding-top:16px;font-size:13px;color:var(--muted)}.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:#1c2430;color:#fff;padding:10px 18px;border-radius:999px;font-size:14px;z-index:10}@media (min-width:560px){.metrics,.values{grid-template-columns:repeat(3,1fr)}}