:root{--navy:#08284d;--blue:#0a4f93;--cyan:#00a6c8;--bg:#f3f7fb;--text:#18324b;--muted:#6b7d90;--line:#dce7f0;--white:#fff;--green:#168a5b;--amber:#b87500;--red:#b23a48;--shadow:0 10px 35px rgba(8,40,77,.08)}*{box-sizing:border-box}body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--text)}a{color:var(--blue);text-decoration:none}.app-shell{min-height:100vh;display:grid;grid-template-columns:250px 1fr}.sidebar{background:linear-gradient(180deg,#061e3a,#0a345f);color:#fff;padding:22px 16px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}.brand{display:flex;align-items:center;gap:12px;padding:0 8px 24px;border-bottom:1px solid rgba(255,255,255,.12)}.brand img{width:48px;height:48px;border-radius:14px}.brand strong,.brand span{display:block}.brand span{font-size:12px;color:#a9c8e4;margin-top:3px}.sidebar nav{padding-top:20px;display:grid;gap:5px}.sidebar nav a{color:#dceaf7;padding:11px 12px;border-radius:10px}.sidebar nav 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15px;font-weight:700;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;font-size:14px}.btn.primary{background:var(--blue);color:#fff}.btn.success{background:var(--green);color:#fff}.btn.warning{background:#f0a51c;color:#142c40}.btn.ghost{background:#eef5fa;color:var(--navy)}.active-session .btn.ghost{background:rgba(255,255,255,.14);color:#fff}.btn.full{width:100%;margin-top:8px}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:12px 10px;border-bottom:1px solid var(--line);vertical-align:top}th{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}td{font-size:14px}.badge{display:inline-block;padding:4px 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18px}.flash.success{background:#e5f6ef;color:#086a46}.flash.error{background:#fdebed;color:#9b2635}.auth-main{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at top right,#d9f4f8 0,#f3f7fb 40%,#e9f1f8 100%)}.login-card{width:min(420px,100%);background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px;box-shadow:0 18px 60px rgba(8,40,77,.12)}.login-logo{width:72px;height:72px;border-radius:18px}.login-card h1{margin:18px 0 5px}.login-card p{color:var(--muted);margin-top:0}.login-card label{display:block;font-size:13px;font-weight:700;margin:14px 0 6px}.detail-grid{display:grid;grid-template-columns:180px 1fr;gap:10px 20px}.detail-grid dt{font-weight:700;color:var(--muted)}.detail-grid dd{margin:0}.timeline{border-left:2px solid var(--line);margin-left:9px;padding-left:22px}.timeline-item{position:relative;padding:0 0 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