:root{--bg:#07101f;--card:rgba(14,27,48,.78);--line:rgba(255,255,255,.1);--text:#edf5ff;--muted:#8fa4c1;--accent:#66e3ff;--accent2:#8b7cff;--danger:#ff6d8b}
*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;background:radial-gradient(circle at 20% 10%,#152a50 0,transparent 35%),radial-gradient(circle at 90% 80%,#25184a 0,transparent 35%),var(--bg);color:var(--text);min-height:100vh}.bg-orb{position:fixed;width:300px;height:300px;border-radius:50%;filter:blur(90px);opacity:.15;pointer-events:none}.orb1{background:#4de3ff;top:5%;right:10%}.orb2{background:#9d72ff;bottom:5%;left:5%}
.topbar{height:82px;display:flex;align-items:center;justify-content:space-between;padding:0 5%;border-bottom:1px solid var(--line);backdrop-filter:blur(18px);position:sticky;top:0;z-index:5}.brand{display:flex;gap:12px;align-items:center}.brand small{display:block;color:var(--muted);font-size:11px;letter-spacing:1px}.logo{display:grid;place-items:center;width:42px;height:42px;border-radius:13px;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#06101e;font-weight:900;font-size:22px}.top-actions{display:flex;align-items:center;gap:10px}.top-actions button,.navbtn,.chips button{border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--text);padding:9px 13px;border-radius:10px;cursor:pointer}.status{font-size:12px;padding:7px 11px;border-radius:999px}.online{background:rgba(70,230,170,.1);color:#66efba}.offline{background:rgba(255,109,139,.1);color:#ff8da3}
main{width:min(1180px,92%);margin:34px auto 70px}.card{background:var(--card);border:1px solid var(--line);box-shadow:0 24px 70px rgba(0,0,0,.25);backdrop-filter:blur(20px);border-radius:22px}.auth{min-height:520px;display:grid;grid-template-columns:1.25fr .75fr;overflow:hidden}.auth-copy{padding:70px;display:flex;flex-direction:column;justify-content:center;background:linear-gradient(135deg,rgba(102,227,255,.08),transparent)}h1{font-size:54px;line-height:1.04;margin:15px 0}.auth-copy p{color:var(--muted);font-size:17px;max-width:580px;line-height:1.7}.auth-box{padding:55px 45px;display:flex;flex-direction:column;justify-content:center}.tabs{display:flex;gap:8px;margin-bottom:24px}.tab{flex:1;padding:12px;border:0;background:transparent;color:var(--muted);border-bottom:2px solid transparent;cursor:pointer}.tab.active{color:var(--text);border-color:var(--accent)}input,select{width:100%;padding:14px 15px;border-radius:12px;border:1px solid var(--line);background:#091527;color:var(--text);outline:none;margin-bottom:12px}input:focus,select:focus{border-color:var(--accent)}button{font:inherit}.primary{border:0;border-radius:12px;padding:14px 18px;background:linear-gradient(135deg,var(--accent),#8c9dff);color:#06101e;font-weight:800;cursor:pointer}.wide{width:100%}.msg{color:#ff9caf;font-size:13px;min-height:20px}.nav{display:flex;gap:7px;padding:8px;margin-bottom:20px;overflow:auto}.navbtn.active{background:linear-gradient(135deg,rgba(102,227,255,.18),rgba(139,124,255,.18));border-color:rgba(102,227,255,.35)}.grid2{display:grid;grid-template-columns:1.4fr .8fr;gap:20px}.calc-card{padding:22px}.display{min-height:150px;padding:22px;border-radius:17px;background:#050c18;border:1px solid var(--line);text-align:right}.display span,.eyebrow{font-size:10px;letter-spacing:2px;color:var(--accent)}#expr{font-size:20px;color:var(--muted);min-height:28px;margin-top:16px;overflow:auto}#result{font-size:42px;font-weight:800;overflow:auto}.chips{display:flex;gap:8px;margin:13px 0}.chips button{font-size:12px}.keypad{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.keypad button{height:58px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.045);color:var(--text);font-size:18px;cursor:pointer}.keypad button:hover{transform:translateY(-1px);background:rgba(255,255,255,.09)}.keypad .op{color:var(--accent)}.keypad .equal{background:linear-gradient(135deg,var(--accent),#8c9dff);color:#06101e;font-weight:900}.keypad .danger,.dangerBtn{color:#ff9caf}.zero{grid-column:span 2}.hint{color:var(--muted);font-size:12px;line-height:1.6}.side-card{padding:28px}.section-title{display:flex;justify-content:space-between;align-items:center;gap:10px}.section-title h2,h2{margin:6px 0 18px}.mini-grid,.grid3{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.mini-grid>div,.stat{padding:20px;border:1px solid var(--line);border-radius:15px;background:rgba(255,255,255,.035)}.mini-grid b,.stat b{display:block;font-size:30px}.mini-grid span,.stat span{color:var(--muted);font-size:12px}.shortcut{display:flex;justify-content:space-between;padding:11px 0;border-bottom:1px solid var(--line);color:var(--muted)}kbd{padding:4px 8px;border:1px solid var(--line);border-radius:6px;color:var(--text)}.panel{padding:28px}.formgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;align-items:center}.formgrid button{margin-bottom:12px}.big-result{font-size:34px;font-weight:800;margin-top:18px;word-break:break-all}.toolbar{display:flex;gap:10px}.toolbar input{margin:0}.dangerBtn{background:transparent;border:1px solid var(--line);padding:9px 13px;border-radius:10px;cursor:pointer}.history-row,.fav-row,.recent-row{display:grid;grid-template-columns:1fr auto auto;gap:15px;align-items:center;padding:15px 4px;border-bottom:1px solid var(--line)}.history-row small,.fav-row small,.recent-row small{display:block;color:var(--muted);margin-top:4px}.row-actions button{border:0;background:transparent;color:var(--muted);cursor:pointer}.row-actions button:hover{color:var(--accent)}.pagination{display:flex;justify-content:center;gap:20px;align-items:center;padding-top:18px}.pagination button{background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text);padding:8px 13px;border-radius:9px}.stat{padding:25px}.stat b{font-size:40px;margin-top:10px}.grid3{grid-template-columns:repeat(3,1fr);margin-bottom:20px}.bar{display:flex;align-items:center;gap:12px;margin:12px 0}.bar>div{height:12px;border-radius:99px;background:linear-gradient(90deg,var(--accent),var(--accent2));min-width:5px}.bar span{color:var(--muted);font-size:12px;min-width:90px}#toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%) translateY(20px);opacity:0;padding:12px 18px;border-radius:12px;background:#0b1930;border:1px solid var(--line);transition:.25s;z-index:10}#toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
body.light{--bg:#edf4fb;--card:rgba(255,255,255,.78);--line:rgba(10,30,60,.12);--text:#14233a;--muted:#60738e}body.light input,body.light select{background:#fff;color:var(--text)}body.light .display{background:#f4f8fc}
@media(max-width:800px){.auth,.grid2{grid-template-columns:1fr}.auth-copy{padding:40px}.auth-box{padding:35px}.auth-copy h1{font-size:38px}.grid3{grid-template-columns:1fr}.formgrid{grid-template-columns:1fr}.topbar{padding:0 3%}.history-row,.fav-row{grid-template-columns:1fr auto}}