:root{
--navy:#000080;--red:#FF0000;--ink:#172033;--muted:#7a8395;--bg:#f6f8fc;
--card:#fff;--line:#e8ebf2;--shadow:0 12px 35px rgba(15,25,55,.08)
}
*{box-sizing:border-box} body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
.app-shell{min-height:100vh}.sidebar{position:fixed;inset:0 auto 0 0;width:255px;background:#fff;border-right:1px solid var(--line);padding:24px 16px;z-index:20}
.brand{font-weight:800;font-size:19px;color:var(--navy);display:flex;align-items:center;gap:10px;padding:0 8px 22px}
.brand-mark{width:36px;height:36px;border-radius:11px;background:var(--navy);color:#fff;display:grid;place-items:center;box-shadow:0 7px 18px rgba(0,0,128,.25)}
.user-card{display:flex;gap:10px;align-items:center;padding:13px;background:#f7f8fc;border-radius:15px;margin-bottom:18px}.user-card small{display:block;color:var(--muted);font-size:11px;margin-top:2px}.avatar{width:38px;height:38px;border-radius:12px;background:#e9eaff;color:var(--navy);display:grid;place-items:center;font-weight:800}
.side-nav{display:grid;gap:5px}.side-nav a{color:#596276;text-decoration:none;padding:12px 13px;border-radius:12px;display:flex;gap:11px;align-items:center;font-weight:600;transition:.2s}.side-nav a:hover,.side-nav a.active{background:#f0f0ff;color:var(--navy);transform:translateX(2px)}.side-nav a:last-child{color:var(--red);margin-top:15px}
.main{margin-left:255px;min-height:100vh}.topbar{height:100px;background:#fff;border-bottom:1px solid var(--line);padding:22px 34px;display:flex;justify-content:space-between;align-items:center}.topbar h1{font-size:25px;margin:4px 0 0;font-weight:800}.eyebrow{font-size:10px;font-weight:800;letter-spacing:1.4px;color:var(--red)}.role-pill{font-size:11px;font-weight:800;color:var(--navy);background:#eeeeff;padding:8px 12px;border-radius:99px}
.content{padding:30px 34px 50px}.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.stat{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:19px;box-shadow:var(--shadow);animation:rise .45s ease both}.stat .icon{width:42px;height:42px;border-radius:13px;background:#f0f0ff;color:var(--navy);display:grid;place-items:center;font-size:19px}.stat small{color:var(--muted);font-weight:600}.stat h2{margin:8px 0 0;font-size:27px}
.panel{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:22px}.panel-title{font-weight:800;font-size:17px;margin-bottom:18px}.search-card{background:linear-gradient(135deg,var(--navy),#1717a6);color:#fff;border-radius:20px;padding:24px;box-shadow:0 18px 40px rgba(0,0,128,.2)}.search-card .form-control{height:50px;border:0}.btn-brand{background:var(--red);border:0;color:#fff;font-weight:700}.btn-brand:hover{background:#d90000;color:#fff}.btn-navy{background:var(--navy);border:0;color:#fff;font-weight:700}.btn-navy:hover{background:#00005f;color:#fff}
.device-hero{display:flex;justify-content:space-between;gap:20px;align-items:flex-start}.status{padding:6px 10px;border-radius:99px;font-size:11px;font-weight:800;background:#edf8ef;color:#1b7a32}.status.repair{background:#fff0f0;color:var(--red)}.status.used{background:#eef2ff;color:var(--navy)}
.table thead th{font-size:11px;text-transform:uppercase;color:#7a8395;letter-spacing:.5px;border-bottom:1px solid var(--line)}.table td{vertical-align:middle}.empty{padding:45px;text-align:center;color:var(--muted)}
.scanner-wrap{display:none;background:#0c0c20;border-radius:16px;padding:10px;margin-top:12px}.scanner-wrap.active{display:block}.scanner-wrap video{border-radius:10px}
.timeline{position:relative;margin-left:8px}.timeline-item{position:relative;padding:0 0 22px 28px;border-left:2px solid #e6e7f2}.timeline-item:last-child{border-left-color:transparent}.timeline-dot{position:absolute;left:-7px;top:1px;width:12px;height:12px;border-radius:50%;background:var(--navy);box-shadow:0 0 0 4px #e9e9ff}.timeline-item strong{font-size:14px}.timeline-item small{color:var(--muted)}
.login-page{min-height:100vh;display:grid;place-items:center;padding:20px;background:linear-gradient(135deg,#f7f8ff,#fff)}.login-card{width:min(430px,100%);background:#fff;border:1px solid var(--line);border-radius:24px;padding:32px;box-shadow:0 25px 70px rgba(15,25,55,.12)}.login-card .brand{padding:0 0 25px}
.mobile-nav{display:none}
@keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@media(max-width:1050px){.stat-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:800px){.sidebar{display:none}.main{margin-left:0}.topbar{height:auto;padding:18px 18px}.topbar h1{font-size:21px}.content{padding:18px 16px 95px}.mobile-nav{position:fixed;display:flex;bottom:0;left:0;right:0;height:68px;background:#fff;border-top:1px solid var(--line);z-index:50;justify-content:space-around;padding:7px 4px calc(7px + env(safe-area-inset-bottom));box-shadow:0 -8px 25px rgba(10,20,40,.08)}.mobile-nav a{color:#697386;text-decoration:none;display:flex;flex-direction:column;align-items:center;gap:2px;font-size:10px;font-weight:700}.mobile-nav i{font-size:19px}.mobile-nav a:hover{color:var(--navy)}.stat-grid{gap:10px}.stat{padding:14px}.stat h2{font-size:22px}.device-hero{flex-direction:column}.panel{padding:16px}.table-responsive{margin:0 -5px}}
@media(max-width:450px){.stat-grid{grid-template-columns:1fr 1fr}.stat small{font-size:10px}}