:root{--ink:#152331;--muted:#617181;--paper:#f4f7f8;--panel:#fff;--line:#d7e0e5;--blue:#176b87;--blue2:#0e4e68;--orange:#e36f3d;--green:#238066;--red:#b94040;--shadow:0 18px 50px rgba(25,52,68,.10)}
*{box-sizing:border-box}html{font-family:"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.55}body{margin:0}a{color:var(--blue)}button,input,select{font:inherit}.shell{min-height:100vh;display:grid;grid-template-rows:auto 1fr auto}.topbar{padding:22px clamp(22px,6vw,78px);display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid rgba(21,35,49,.1)}.brand{font-weight:760;letter-spacing:-.04em;font-size:1.25rem}.brand span{color:var(--orange)}.status{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:.9rem}.status-dot{width:9px;height:9px;border-radius:50%;background:var(--orange);box-shadow:0 0 0 5px rgba(227,111,61,.13)}.maintenance{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(300px,.9fr);align-items:center;gap:clamp(40px,7vw,110px);padding:clamp(58px,10vw,130px) clamp(22px,8vw,110px)}.maintenance h1{font-size:clamp(3rem,7.5vw,7.6rem);line-height:.9;letter-spacing:-.075em;margin:0 0 32px;max-width:820px}.maintenance p{max-width:620px;font-size:clamp(1rem,1.5vw,1.2rem);color:var(--muted);margin:0}.signal{position:relative;aspect-ratio:1;max-width:520px;margin:auto;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;background:radial-gradient(circle at 35% 30%,#fff 0 14%,#eaf1f3 42%,#d8e6ea 100%);box-shadow:var(--shadow)}.signal:before,.signal:after{content:"";position:absolute;border-radius:50%;border:1px solid rgba(23,107,135,.25)}.signal:before{inset:16%}.signal:after{inset:30%}.signal-core{width:20%;aspect-ratio:1;border-radius:50%;background:var(--orange);box-shadow:0 0 0 18px rgba(227,111,61,.13),0 0 0 40px rgba(227,111,61,.06)}.signal-label{position:absolute;bottom:15%;font-weight:700;color:var(--blue2)}.footer{padding:22px clamp(22px,6vw,78px);border-top:1px solid var(--line);color:var(--muted);font-size:.9rem;display:flex;justify-content:space-between;gap:16px}.admin-body{background:#edf2f4}.admin-shell{display:grid;grid-template-columns:250px 1fr;min-height:100vh}.sidebar{background:var(--ink);color:#fff;padding:28px 22px;display:flex;flex-direction:column}.sidebar .brand{font-size:1.4rem}.sidebar nav{display:grid;gap:8px;margin-top:44px}.sidebar a,.sidebar button{color:#d7e2e8;text-decoration:none;background:none;border:0;text-align:left;padding:11px 12px;border-radius:8px;cursor:pointer}.sidebar a.active,.sidebar a:hover,.sidebar button:hover{background:rgba(255,255,255,.09);color:#fff}.sidebar form{margin-top:auto}.content{padding:clamp(24px,4vw,56px);overflow:auto}.page-head{margin-bottom:28px}.page-head h1{font-size:clamp(2rem,4vw,3.2rem);letter-spacing:-.055em;line-height:1;margin:0}.page-head p{color:var(--muted);margin:9px 0 0}.grid{display:grid;grid-template-columns:repeat(4,minmax(150px,1fr));gap:14px;margin-bottom:26px}.metric,.panel{background:var(--panel);border:1px solid var(--line);border-radius:12px;box-shadow:0 8px 25px rgba(25,52,68,.05)}.metric{padding:20px}.metric strong{display:block;font-size:2rem;letter-spacing:-.05em}.metric span{color:var(--muted);font-size:.9rem}.panel{padding:24px;margin-bottom:22px}.panel h2{margin:0 0 18px;font-size:1.15rem}.form-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.field{display:grid;gap:6px}.field.wide{grid-column:span 2}.field label{font-size:.84rem;color:var(--muted);font-weight:650}.field input,.field select,.login-card input{width:100%;border:1px solid #cbd7dc;background:#fff;border-radius:8px;padding:10px 12px;color:var(--ink)}.field input:focus,.field select:focus,.login-card input:focus{outline:3px solid rgba(23,107,135,.16);border-color:var(--blue)}.btn{display:inline-block;border:0;border-radius:8px;padding:10px 15px;font-weight:700;cursor:pointer;background:var(--blue);color:#fff;text-decoration:none}.btn:hover{background:var(--blue2)}.btn.secondary{background:#e6edef;color:var(--ink)}.btn.danger{background:#f8e7e7;color:var(--red)}.actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.table-wrap{overflow:auto}.table{width:100%;border-collapse:collapse;min-width:900px}.table th,.table td{text-align:left;padding:13px 10px;border-bottom:1px solid var(--line);vertical-align:middle}.table th{color:var(--muted);font-size:.8rem}.key{font-family:Consolas,monospace;font-size:.87rem}.badge{display:inline-flex;padding:4px 9px;border-radius:99px;font-size:.78rem;font-weight:700;background:#e9eff1}.badge.active{color:var(--green);background:#e3f3ee}.badge.revoked,.badge.expired{color:var(--red);background:#f8e7e7}.notice{padding:12px 14px;border-radius:8px;background:#e6f2f5;color:var(--blue2);margin-bottom:18px}.notice.error{background:#f9e5e5;color:#8f2f2f}.login-page{min-height:100vh;display:grid;place-items:center;padding:24px;background:linear-gradient(145deg,#eaf0f2,#f8fafb)}.login-card{width:min(440px,100%);background:#fff;border:1px solid var(--line);border-radius:16px;padding:34px;box-shadow:var(--shadow)}.login-card h1{font-size:2.2rem;letter-spacing:-.055em;margin:0 0 8px}.login-card p{color:var(--muted);margin:0 0 25px}.login-card .field{margin-bottom:15px}.login-card .btn{width:100%;margin-top:8px}.empty{color:var(--muted);padding:28px 0;text-align:center}
@media(max-width:900px){.maintenance{grid-template-columns:1fr}.signal{width:min(76vw,390px)}.admin-shell{grid-template-columns:1fr}.sidebar{display:block}.sidebar nav{display:flex;margin-top:22px}.sidebar form{margin-top:18px}.grid{grid-template-columns:repeat(2,1fr)}.form-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.maintenance h1{font-size:3.3rem}.footer{display:block}.grid,.form-grid{grid-template-columns:1fr}.field.wide{grid-column:auto}}
@media(prefers-reduced-motion:no-preference){.signal-core{animation:pulse 3s ease-in-out infinite}@keyframes pulse{50%{box-shadow:0 0 0 25px rgba(227,111,61,.10),0 0 0 55px rgba(227,111,61,.03)}}}