:root{--blue:#0b74de;--deep:#074f9f;--light:#eaf7ff;--water:#58c7f3;--white:#fff;--text:#102033;--muted:#6b7a90;--border:#d9ecf7}*{box-sizing:border-box}body{margin:0;background:linear-gradient(180deg,#eefaff 0%,#f7fbff 100%);font-family:Arial,Helvetica,sans-serif;color:var(--text)}a{text-decoration:none}.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:radial-gradient(circle at top left,#b9ecff,transparent 35%),linear-gradient(135deg,#eaf7ff,#fff)}.auth-card{width:100%;max-width:430px;background:white;border:1px solid var(--border);border-radius:26px;padding:30px;box-shadow:0 20px 60px rgba(11,116,222,.12)}.brand{display:flex;gap:12px;align-items:center;font-weight:800;color:var(--deep);font-size:20px}.brand-mark{width:46px;height:46px;border-radius:16px;background:linear-gradient(135deg,var(--blue),var(--water));display:flex;align-items:center;justify-content:center;color:white;font-weight:900}.btn-water{background:linear-gradient(135deg,var(--blue),var(--water));color:#fff;border:none;border-radius:12px;padding:10px 16px}.btn-water:hover{color:#fff;filter:brightness(.97)}.layout{display:flex;min-height:100vh}.sidebar{width:270px;background:linear-gradient(180deg,#063b78,#0b74de);color:white;position:fixed;top:0;bottom:0;left:0;padding:22px 16px;box-shadow:8px 0 30px rgba(7,79,159,.18)}.sidebar .brand{color:white;margin-bottom:26px}.side-link{display:flex;align-items:center;gap:10px;color:#eaf7ff;padding:12px 14px;border-radius:14px;margin:4px 0;font-weight:600}.side-link:hover,.side-link.active{background:rgba(255,255,255,.18);color:white}.content{margin-left:270px;width:calc(100% - 270px);padding:28px}.topbar{background:white;border:1px solid var(--border);border-radius:22px;padding:18px 22px;margin-bottom:22px;display:flex;justify-content:space-between;align-items:center;box-shadow:0 10px 30px rgba(11,116,222,.08)}.hero{background:linear-gradient(135deg,#0b74de,#58c7f3);color:white;border-radius:26px;padding:28px;margin-bottom:22px;box-shadow:0 20px 50px rgba(11,116,222,.20)}.cardx{background:white;border:1px solid var(--border);border-radius:24px;padding:22px;box-shadow:0 12px 36px rgba(11,116,222,.08)}.stat{background:white;border:1px solid var(--border);border-radius:22px;padding:22px;box-shadow:0 12px 36px rgba(11,116,222,.08)}.stat .num{font-size:34px;font-weight:900;color:var(--blue)}.table{background:white}.badge-open{background:#0b74de}.badge-closed{background:#6b7a90}.badge-pass{background:#0aa66a}.badge-fail{background:#dc3545}.form-control,.form-select{border-radius:12px;border-color:var(--border);padding:10px 12px}.actions .btn{margin:2px;border-radius:10px}.timer{font-size:28px;font-weight:900;color:var(--blue);background:#eaf7ff;border:1px solid var(--border);padding:12px 18px;border-radius:16px;display:inline-block}@media(max-width:900px){.sidebar{position:relative;width:100%;height:auto}.layout{display:block}.content{margin-left:0;width:100%;padding:16px}.topbar{display:block}.side-link{display:inline-flex}}