:root{--red:#b5121b;--dark:#14151b;--muted:#6b7280;--bg:#f5f6fb;--card:#fff;--gold:#f7b731}*{box-sizing:border-box}body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:linear-gradient(135deg,#fff5f5,#f5f6fb);color:#1f2937}.app{display:flex;min-height:100vh}.sidebar{width:280px;background:linear-gradient(180deg,#111827,#7f1018);color:white;padding:24px;position:fixed;inset:0 auto 0 0}.brand{display:flex;gap:14px;align-items:center;margin-bottom:32px}.logo{width:54px;height:54px;border-radius:18px;background:linear-gradient(135deg,var(--red),var(--gold));display:grid;place-items:center;font-weight:900;box-shadow:0 12px 30px #0005}.brand span{display:block;color:#ffd7d7;font-size:12px;margin-top:4px}nav a{display:block;color:#fff;text-decoration:none;padding:13px 15px;border-radius:14px;margin:8px 0;background:#ffffff10}nav a:hover{background:#ffffff24}.main{margin-left:280px;width:calc(100% - 280px);padding:28px}.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.topbar h1{margin:0;font-size:28px}.user{background:white;padding:10px 16px;border-radius:999px;box-shadow:0 8px 25px #11182710}.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.card{background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border:1px solid #fff;box-shadow:0 18px 45px #11182714;border-radius:24px;padding:22px}.stat{font-size:34px;font-weight:900;color:var(--red)}.btn{border:0;background:linear-gradient(135deg,var(--red),#e11d48);color:white;padding:11px 16px;border-radius:13px;text-decoration:none;display:inline-block;cursor:pointer;font-weight:700}.btn.secondary{background:#111827}.btn.light{background:#eef2f7;color:#111827}table{width:100%;border-collapse:collapse;background:white;border-radius:20px;overflow:hidden}th,td{padding:14px;border-bottom:1px solid #eef2f7;text-align:left}th{font-size:12px;text-transform:uppercase;color:#6b7280;background:#fafafa}.form{max-width:760px}.input,label{display:block;width:100%}label{font-weight:700;margin:14px 0 7px}.input{padding:13px 14px;border:1px solid #d1d5db;border-radius:14px;background:#fff}.actions{display:flex;gap:10px;align-items:center}.login-page{min-height:100vh;display:grid;place-items:center;background:radial-gradient(circle at top left,#ffdee2,#f5f6fb 40%,#fff)}.login-box{width:430px}.alert{padding:12px 14px;border-radius:14px;background:#fff3cd;color:#7a4b00;margin-bottom:12px}.qrimg{width:90px;height:90px;object-fit:contain}.badge{padding:6px 10px;border-radius:999px;font-size:12px;font-weight:800}.active{background:#dcfce7;color:#166534}.inactive{background:#fee2e2;color:#991b1b}@media(max-width:900px){.sidebar{position:relative;width:100%;inset:auto}.app{display:block}.main{margin:0;width:100%}.grid{grid-template-columns:1fr}}