:root {
  --bg:#14161b; --surface:#1b1e24; --surface2:#111317; --hitBg:#2a1d22; --border:#2c3038;
  --accent:#ff4d5e; --accent2:#e5243b; --accent2-ink:#ec5a6b; --accentSoft:#ff7a87;
  --text:#f1f2f4; --muted:#9aa0aa; --dim:#8b929e; --danger:#ff6b6b; --scan:rgba(0,0,0,.06);
  --toggleBorder:#2c3038; --shadow:rgba(0,0,0,.4);
}
:root[data-theme="light"] {
  --bg:#eef1f5; --surface:#f8f9fb; --surface2:#e6eaf0; --hitBg:#fbe3e6; --border:#d3d9e2;
  --accent:#e5243b; --accent2:#c81d31; --accent2-ink:#c81d31; --accentSoft:#d0283d;
  --text:#16181d; --muted:#5d6470; --dim:#626975; --danger:#d92d3a; --scan:transparent;
  --toggleBorder:#d9a520; --shadow:rgba(0,0,0,.12);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
[hidden]{display:none!important}
body{background:var(--bg);color:var(--text)}
a{color:var(--accent);text-decoration:none}
a:hover{color:var(--accentSoft)}
input::placeholder{color:#8a909b;letter-spacing:.04em}
.mono,.app{font-family:'JetBrains Mono',monospace}

@keyframes fadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
@keyframes gridMove{to{background-position:24px 24px}}
@keyframes bgPulse{from{opacity:.7}to{opacity:1}}
@keyframes glitch1{0%,90%,100%{opacity:0;clip-path:inset(0 0 100% 0);transform:none}91%{opacity:.8;clip-path:inset(12% 0 58% 0);transform:translate(-5px,1px) skewX(-4deg)}92.5%{opacity:.8;clip-path:inset(62% 0 8% 0);transform:translate(4px,-1px) skewX(3deg)}94%{opacity:0}}
@keyframes glitch2{0%,93%,100%{opacity:0;clip-path:inset(0 0 100% 0);transform:none}94%{opacity:.6;clip-path:inset(30% 0 42% 0);transform:translate(5px,0) skewX(5deg)}95.5%{opacity:.6;clip-path:inset(74% 0 4% 0);transform:translate(-4px,1px)}97%{opacity:0}}
@keyframes blink{0%,100%{opacity:1}50%{opacity:0}}
@keyframes pulseDot{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(1.6)}}
@keyframes scanX{0%{transform:translateX(-100%)}100%{transform:translateX(320%)}}
@keyframes laser{0%{top:-4%;opacity:0}8%{opacity:1}92%{opacity:1}100%{top:104%;opacity:0}}
@keyframes ring{0%{transform:scale(.6);opacity:.9}100%{transform:scale(2.4);opacity:0}}
@keyframes flash{0%{opacity:.55}100%{opacity:0}}
@keyframes stamp{0%{opacity:0;transform:scale(2.2) rotate(-8deg);filter:blur(6px)}60%{opacity:1;transform:scale(.92) rotate(-3deg);filter:blur(0)}100%{opacity:1;transform:scale(1) rotate(-3deg)}}
@keyframes rowIn{0%{opacity:0;transform:translateX(-14px);filter:blur(4px)}100%{opacity:1;transform:none;filter:blur(0)}}
@keyframes sweep{0%{transform:translateX(-120%)}100%{transform:translateX(220%)}}
@keyframes hitGlow{0%,100%{box-shadow:0 0 0 1px color-mix(in srgb,var(--accent) 50%,transparent),0 0 22px color-mix(in srgb,var(--accent) 35%,transparent)}50%{box-shadow:0 0 0 1px color-mix(in srgb,var(--accent) 90%,transparent),0 0 44px color-mix(in srgb,var(--accent) 60%,transparent)}}
@keyframes shake{0%,100%{transform:none}20%{transform:translateX(-6px)}40%{transform:translateX(5px)}60%{transform:translateX(-3px)}80%{transform:translateX(2px)}}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes flicker{0%,19%,21%,23%,55%,57%,100%{opacity:1}20%,22%,56%{opacity:.35}}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important}}

.app{position:relative;min-height:100vh;background:var(--bg);color:var(--text);overflow-x:hidden;transition:background .4s,color .4s}
.fx{position:fixed;inset:0;pointer-events:none}
.fx-glow{background-image:radial-gradient(ellipse at 15% 20%,color-mix(in srgb,var(--accent) 14%,transparent) 0%,transparent 50%),radial-gradient(ellipse at 85% 80%,color-mix(in srgb,var(--accent) 9%,transparent) 0%,transparent 50%),radial-gradient(ellipse at 50% 50%,color-mix(in srgb,var(--accent) 4%,transparent) 0%,transparent 60%);animation:bgPulse 6s ease-in-out infinite alternate}
.fx-grid{background-image:linear-gradient(color-mix(in srgb,var(--accent) 5%,transparent) 1px,transparent 1px),linear-gradient(90deg,color-mix(in srgb,var(--accent) 5%,transparent) 1px,transparent 1px);background-size:24px 24px;animation:gridMove 14s linear infinite;-webkit-mask-image:radial-gradient(ellipse at 50% 30%,#000 20%,transparent 75%);mask-image:radial-gradient(ellipse at 50% 30%,#000 20%,transparent 75%)}
.fx-scan{z-index:50;background:repeating-linear-gradient(0deg,transparent,transparent 2px,var(--scan) 2px,var(--scan) 4px)}
.fx-flash{z-index:40;background:radial-gradient(circle at 50% 60%,color-mix(in srgb,var(--accent) 60%,transparent),color-mix(in srgb,var(--accent) 20%,transparent) 40%,transparent 70%);animation:flash .9s ease-out forwards}

.rise{animation:fadeUp .6s cubic-bezier(.22,1,.36,1) var(--d,0s) both}

.topbar{position:sticky;top:0;z-index:30;background:color-mix(in srgb,var(--bg) 88%,transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
nav{max-width:1080px;margin:0 auto;height:56px;padding:0 clamp(16px,4vw,40px);display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center}
.brand img{height:32px;width:auto;display:block;filter:drop-shadow(0 0 6px color-mix(in srgb,var(--accent) 30%,transparent))}
.nav-right{display:flex;align-items:center;gap:clamp(14px,3vw,28px)}
.nav-link{font-size:.75rem;color:var(--muted);letter-spacing:.12em;text-transform:uppercase}
.nav-link:hover{color:var(--text)}
.theme-toggle{width:34px;height:34px;display:flex;align-items:center;justify-content:center;background:var(--surface);border:1px solid var(--toggleBorder);border-radius:8px;color:var(--text);font-size:.95rem;cursor:pointer;transition:transform .3s cubic-bezier(.34,1.56,.64,1),border-color .25s}
.theme-toggle:hover{transform:scale(1.08) rotate(-12deg)}
.theme-toggle:active{transform:scale(.9)}
.mode{display:flex;align-items:center;gap:7px;font-size:.62rem;color:var(--dim);letter-spacing:.12em;border:1px solid var(--border);border-radius:4px;padding:4px 9px}
.pulse-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px var(--accent);animation:pulseDot 1.6s infinite}
@media (max-width:520px){.nav-link{display:none}}

main{position:relative;z-index:1;max-width:1080px;margin:0 auto;padding:clamp(44px,8vw,80px) clamp(16px,4vw,40px) 40px}
.eyebrow{font-size:.7rem;color:var(--dim);letter-spacing:.16em;text-transform:uppercase;margin-bottom:14px}
h1{position:relative;display:inline-block;font-family:'Be Vietnam Pro',sans-serif;font-size:clamp(2.6rem,8.5vw,5.6rem);font-weight:800;text-transform:uppercase;line-height:.95;letter-spacing:-.025em;color:var(--text);text-shadow:0 0 30px color-mix(in srgb,var(--text) 15%,transparent)}
h1 .hl{color:var(--accent);text-shadow:0 0 14px color-mix(in srgb,var(--accent) 70%,transparent),0 0 36px color-mix(in srgb,var(--accent) 30%,transparent)}
.glitch{position:absolute;inset:0;pointer-events:none;color:var(--accent)}
.g1{animation:glitch1 6s infinite}
.g2{color:var(--accentSoft);animation:glitch2 6s infinite}
.lead{font-size:.8rem;color:var(--muted);line-height:1.85;max-width:560px;margin-top:18px;text-wrap:pretty}
.soft{color:var(--accentSoft)}
.cursor{color:var(--accent);animation:blink 1.1s step-end infinite}
.rule{width:60px;height:2px;background:linear-gradient(90deg,var(--accent2),var(--accent));margin:28px 0}

.search{position:relative;max-width:720px}
.field{position:relative;display:flex;align-items:stretch;background:var(--surface);border:1px solid var(--border);border-radius:10px;overflow:hidden;box-shadow:0 12px 40px var(--shadow);transition:border-color .25s,box-shadow .25s}
.field.active{border-color:color-mix(in srgb,var(--accent) 60%,transparent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 10%,transparent),0 0 32px color-mix(in srgb,var(--accent) 18%,transparent),0 12px 40px var(--shadow)}
.field.shake{animation:shake .4s ease 1}
.prompt{display:flex;align-items:center;padding-left:18px;color:var(--accent2-ink);font-size:.9rem;font-weight:700}
#serial-input{flex:1;min-width:0;background:transparent;border:none;outline:none;color:var(--accentSoft);font-family:'JetBrains Mono',monospace;font-size:1rem;font-weight:600;letter-spacing:.1em;padding:18px 14px;text-transform:uppercase}
#btn-check{position:relative;overflow:hidden;display:flex;align-items:center;gap:10px;border:none;cursor:pointer;background:linear-gradient(135deg,var(--accent2),var(--accent));color:#fff;font-family:'Be Vietnam Pro',sans-serif;font-size:1.17rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;padding:0 clamp(16px,3vw,28px);white-space:nowrap;transition:filter .2s,transform .1s}
#btn-check:hover{filter:brightness(1.12)}
#btn-check:active{transform:scale(.97)}
#btn-check:disabled{cursor:progress}
#btn-check:focus-visible{outline:2px solid var(--text);outline-offset:-4px}
.btn-spin{width:14px;height:14px;border:2px solid rgba(255,255,255,.35);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}
.btn-sweep{position:absolute;top:0;bottom:0;left:0;width:40%;background:linear-gradient(105deg,transparent,rgba(255,255,255,.28),transparent);animation:sweep 2.6s ease-in-out infinite}
.field-scan{position:absolute;left:0;right:0;bottom:0;height:2px;overflow:hidden;background:color-mix(in srgb,var(--accent) 10%,transparent)}
.field-scan div{width:30%;height:100%;background:linear-gradient(90deg,transparent,var(--accent),transparent);animation:scanX 1s linear infinite}
.hint{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:10px;font-size:.62rem;color:var(--dim);letter-spacing:.1em;text-transform:uppercase}
#hud.busy{color:var(--accentSoft)}

.targets-head{margin-top:clamp(36px,6vw,56px);display:flex;align-items:baseline;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:16px}
.targets-title{font-family:'Be Vietnam Pro',sans-serif;font-size:1.5rem;font-weight:800;text-transform:uppercase;letter-spacing:.04em}
.targets-title span{color:var(--accent)}
.targets-prog{display:flex;align-items:center;gap:12px;font-size:.62rem;color:var(--dim);letter-spacing:.12em;text-transform:uppercase}
.bar{width:120px;height:3px;background:var(--border);border-radius:2px;overflow:hidden}
.bar div{height:100%;width:0;background:linear-gradient(90deg,var(--accent2),var(--accent));box-shadow:0 0 10px var(--accent);transition:width .35s cubic-bezier(.22,1,.36,1)}

.grid{position:relative;display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,228px),1fr));gap:12px}
.laser{position:absolute;left:-8px;right:-8px;height:2px;pointer-events:none;background:linear-gradient(90deg,transparent,var(--accent) 20%,#fff 50%,var(--accent) 80%,transparent);box-shadow:0 0 16px var(--accent),0 0 40px color-mix(in srgb,var(--accent) 50%,transparent);animation:laser 1.6s ease-in-out infinite}
.node{--c:var(--dim);--b:var(--border);--bar:var(--border);--nm:var(--muted);position:relative;overflow:hidden;background:var(--surface);border:1px solid var(--b);border-radius:8px;padding:14px 16px 14px 18px;transition:border-color .3s,background .3s,opacity .4s,transform .3s}
.node::before{content:'';position:absolute;top:0;left:0;bottom:0;width:3px;background:var(--bar);transition:background .3s}
.node-top{display:flex;align-items:center;justify-content:space-between;gap:8px}
.node-num{font-size:.66rem;color:var(--accent2-ink);font-weight:700;letter-spacing:.1em}
.node-status{display:flex;align-items:center;gap:6px;font-size:.58rem;font-weight:700;letter-spacing:.14em;color:var(--c)}
.node-status i{width:6px;height:6px;border-radius:50%;background:var(--c);box-shadow:0 0 8px var(--c)}
.node-name{font-size:.88rem;font-weight:700;color:var(--nm);margin-top:10px;letter-spacing:.02em;transition:color .3s}
.node-host{font-size:.58rem;color:var(--dim);margin-top:4px;letter-spacing:.05em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.node-meta{display:flex;justify-content:space-between;margin-top:10px;font-size:.58rem;color:var(--dim);letter-spacing:.08em}
.node-scan{position:absolute;left:0;right:0;bottom:0;height:2px;overflow:hidden}
.node-scan div{width:35%;height:100%;background:linear-gradient(90deg,transparent,var(--accentSoft),transparent);animation:scanX 1.1s linear infinite}
.node-ring{position:absolute;right:14px;top:50%;width:20px;height:20px;margin-top:-10px;border-radius:50%;border:2px solid var(--accent);animation:ring 1.2s ease-out infinite}
.node[data-k="scan"]{--c:var(--accentSoft);--b:color-mix(in srgb,var(--accent) 45%,transparent);--bar:linear-gradient(180deg,var(--accent2),var(--accent));--nm:var(--accentSoft)}
.node[data-k="scan"]::before{box-shadow:0 0 12px color-mix(in srgb,var(--accent) 70%,transparent)}
.node[data-k="scan"] .node-status i{animation:pulseDot .8s infinite}
.node[data-k="clear"]{--c:var(--muted);--bar:var(--dim);--nm:var(--text)}
.node[data-k="fail"]{--c:var(--danger);--b:color-mix(in srgb,var(--danger) 40%,transparent);--bar:var(--danger);--nm:var(--text);animation:shake .45s ease 1}
.node[data-k="hit"]{--c:var(--accent);--b:var(--accent);--bar:var(--accent);--nm:var(--accent);background:var(--hitBg);animation:hitGlow 1.6s ease-in-out infinite}
.node[data-k="hit"]::before{box-shadow:0 0 12px color-mix(in srgb,var(--accent) 70%,transparent)}
.node[data-k="abort"]{--nm:var(--dim);opacity:.45}

.log{margin-top:16px;background:var(--surface2);border:1px solid var(--border);border-radius:8px;padding:14px 16px;font-size:.68rem;line-height:1.85;animation:fadeUp .4s cubic-bezier(.22,1,.36,1) both}
.log-head{display:flex;justify-content:space-between;color:var(--dim);letter-spacing:.14em;text-transform:uppercase;font-size:.6rem;margin-bottom:8px}
.rec{animation:flicker 3s infinite}
.log-line{display:flex;gap:12px;animation:fadeUp .3s ease both;white-space:nowrap;overflow:hidden}
.log-line .t{color:var(--dim)}
.log-line .m{overflow:hidden;text-overflow:ellipsis}

.found{position:relative;margin-top:28px;max-width:720px;background:var(--surface);border:1px solid var(--accent);border-radius:10px;overflow:hidden;animation:fadeUp .5s cubic-bezier(.22,1,.36,1) both,hitGlow 2.4s ease-in-out .5s infinite}
.found::before{content:'';position:absolute;inset:0;pointer-events:none;background:linear-gradient(115deg,transparent 38%,color-mix(in srgb,var(--accent) 14%,transparent) 50%,transparent 62%);animation:sweep 1.4s cubic-bezier(.22,1,.36,1) .2s 1 both}
.found-head{position:relative;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:18px 22px;border-bottom:1px solid var(--border);background:color-mix(in srgb,var(--accent) 6%,transparent)}
.found-tag{font-size:.6rem;color:var(--accent2-ink);letter-spacing:.16em;text-transform:uppercase}
.found-name{font-family:'Be Vietnam Pro',sans-serif;font-size:1.8rem;font-weight:800;text-transform:uppercase;line-height:1;margin-top:4px}
.stamp{font-family:'Be Vietnam Pro',sans-serif;font-size:1.3rem;font-weight:800;letter-spacing:.12em;color:var(--accent);border:2px solid var(--accent);border-radius:4px;padding:4px 12px;text-shadow:0 0 12px color-mix(in srgb,var(--accent) 70%,transparent);box-shadow:inset 0 0 12px color-mix(in srgb,var(--accent) 25%,transparent);animation:stamp .55s cubic-bezier(.22,1,.36,1) .25s both;white-space:nowrap}
.found-rows{position:relative;padding:8px 22px}
.found-row{display:grid;grid-template-columns:minmax(0,40%) minmax(0,1fr);gap:12px;padding:11px 0;border-bottom:1px solid var(--border);font-size:.78rem;animation:rowIn .45s cubic-bezier(.22,1,.36,1) var(--d) both}
.found-row span:first-child{color:var(--muted)}
.found-row span:last-child{color:var(--text);font-weight:600;overflow-wrap:anywhere}
.found-foot{position:relative;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;padding:12px 22px 16px;font-size:.65rem;letter-spacing:.08em}
.found-foot a{text-transform:uppercase}
.found-foot span{color:var(--dim)}
.found-head>div:first-child{min-width:0}
.found-tag{overflow-wrap:anywhere}
.node-num,.found-tag{color:var(--accentSoft)}

.nf{margin-top:28px;max-width:720px;background:var(--surface);border:1px solid color-mix(in srgb,var(--danger) 30%,transparent);border-radius:10px;padding:28px 24px;animation:fadeUp .45s cubic-bezier(.22,1,.36,1) both,shake .5s ease .1s 1}
.nf.all{border-color:color-mix(in srgb,var(--danger) 50%,transparent)}
.nf-tag{font-size:.6rem;color:var(--danger);letter-spacing:.16em;text-transform:uppercase}
.nf-title{font-family:'Be Vietnam Pro',sans-serif;font-size:clamp(1.6rem,4vw,2.2rem);font-weight:800;text-transform:uppercase;line-height:1;margin-top:8px}
.nf p{font-size:.74rem;color:var(--muted);line-height:1.8;margin-top:12px;max-width:520px;text-wrap:pretty}
.nf-live{margin-top:16px;font-size:.6rem;color:var(--dim);letter-spacing:.12em;text-transform:uppercase}
.nf-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.nf-links a{font-size:.62rem;letter-spacing:.08em;text-transform:uppercase;background:color-mix(in srgb,var(--accent) 8%,transparent);border:1px solid color-mix(in srgb,var(--accent) 35%,transparent);border-radius:4px;padding:4px 10px;transition:background .2s}
.nf-links a:hover{background:color-mix(in srgb,var(--accent) 18%,transparent)}

footer{position:relative;z-index:1;border-top:1px solid var(--border);max-width:1080px;margin:40px auto 0;padding:20px clamp(16px,4vw,40px)}
footer div{font-size:.65rem;color:var(--dim);letter-spacing:.08em}
a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
@media (max-width:480px){
  #serial-input{font-size:.85rem;padding:16px 8px;letter-spacing:.04em}
  .found-head{padding:16px;flex-direction:column;align-items:flex-start;gap:14px}.found-rows{padding:8px 16px}.found-foot{padding:12px 16px 16px}
  .found-name{font-size:1.3rem}.stamp{font-size:1rem}
}

/* Vùng bấm tối thiểu 44×44px trên màn hình cảm ứng — mở rộng vô hình, giao diện giữ nguyên. */
@media (pointer: coarse) {
  .theme-toggle, .brand { position: relative; }
  .theme-toggle::after, .brand::after { content: ""; position: absolute; left: 50%; top: 50%; width: max(100%, 44px); height: max(100%, 44px); transform: translate(-50%, -50%); }
}