:root{--bg:#f4f7f6;--card:#fff;--text:#14201b;--muted:#6b7771;--line:#e3e9e6;--accent:#167c5a;--accent2:#0f6045;--shadow:0 16px 45px rgba(20,32,27,.07)}*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,"Segoe UI",Tahoma,Arial,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}a{color:var(--accent);text-decoration:none}.container{width:min(1050px,calc(100% - 28px));margin:32px auto}.nav{height:68px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 max(20px,calc((100vw - 1050px)/2))}.brand{display:flex;align-items:center;gap:12px}.brand h1{margin:0;font-size:23px}.brand p{margin:3px 0 0}.mark{width:44px;height:44px;border-radius:14px;background:var(--accent);color:#fff;display:grid;place-items:center;font-weight:800;letter-spacing:-1px}.mini .mark{width:36px;height:36px;border-radius:11px}.nav-actions,.top-actions{display:flex;gap:8px}.auth-shell{min-height:calc(100vh - 54px);display:grid;place-items:center;padding:24px}.card{background:var(--card);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:24px}.auth-card{width:min(440px,100%);position:relative}.auth-card .top-actions{position:absolute;top:22px;left:22px}h1,h2{letter-spacing:-.4px}h2{font-size:19px;margin:24px 0 16px}.muted{color:var(--muted)}.center{text-align:center}label{display:block;font-size:13px;font-weight:700;margin:13px 0 7px}input{width:100%;height:48px;border:1px solid var(--line);border-radius:13px;padding:0 14px;background:#fbfcfc;font-size:15px;outline:none;color:var(--text)}input:focus{border-color:#8fc6b3;box-shadow:0 0 0 3px rgba(22,124,90,.09)}button,.linkbtn,.ghost{border:0;border-radius:13px;font:inherit;cursor:pointer}.primary{width:100%;height:49px;background:var(--accent);color:#fff;font-weight:800;margin-top:16px}.primary:hover{background:var(--accent2)}.linkbtn{display:grid;place-items:center}.secondary,.ghost{background:#eef4f1;color:var(--text);padding:10px 14px;font-weight:700}.alert{padding:12px;border-radius:12px;font-size:13px}.bad{background:#fff0f0;color:#a52d2d}.good{background:#edf9f3;color:#146545}.welcome{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}.welcome p,.welcome h1{margin:0}.welcome h1{font-size:28px}.pill{background:#e7f3ee;color:var(--accent2);padding:8px 12px;border-radius:999px;font-size:13px;font-weight:700}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:14px}.stat{background:#fff;border:1px solid var(--line);border-radius:18px;padding:17px}.stat span{display:block;color:var(--muted);font-size:12px}.stat strong{font-size:25px}.grid{display:grid;grid-template-columns:1.2fr .8fr;gap:14px}.checker h2,.grid>.card>h2{margin-top:0}.imei-row{display:grid;grid-template-columns:1fr auto;gap:8px}.result-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:18px}.result{border:1px solid var(--line);border-radius:14px;padding:13px;margin:0;cursor:pointer;font-size:12px}.result input{width:auto;height:auto;margin-inline-end:6px}.history-row{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:12px 0;border-bottom:1px solid var(--line)}.history-row:last-child{border-bottom:0}.history-row b,.history-row small{display:block}.history-row small{color:var(--muted);margin-top:4px;font-size:11px}.status{font-size:10px;font-weight:800;padding:6px 8px;border-radius:999px;white-space:nowrap}.s-active{background:#e8f7ef;color:#12633f}.s-not{background:#f0f2f1;color:#5f6864}footer{text-align:center;padding:17px;color:var(--muted);font-size:12px}footer a{font-weight:800}.ghost{display:inline-flex;align-items:center;justify-content:center}.auth-card form{margin-top:10px}@media(max-width:760px){.container{margin:20px auto}.grid{grid-template-columns:1fr}.stats{grid-template-columns:1fr 1fr 1fr}.stat{padding:13px}.stat strong{font-size:20px}.result-grid{grid-template-columns:1fr}.card{padding:18px}.nav{padding:0 14px}.brand.mini b{font-size:14px}}@media(max-width:430px){.stats{gap:7px}.stat span{font-size:10px}.stat strong{font-size:18px}.welcome h1{font-size:23px}}