* { box-sizing: border-box; }
body { margin: 0; font-family: Arial, sans-serif; background: #eef3f8; color: #1b2733; }
.wrapper { max-width: 1200px; margin: 0 auto; padding: 24px; }
.topbar { background: linear-gradient(135deg, #103a63, #1f6aa5); color: #fff; padding: 24px; border-radius: 18px; margin-bottom: 20px; box-shadow: 0 12px 30px rgba(16,58,99,0.18); }
.topbar h1 { margin: 0 0 8px; }
.topbar p { margin: 0 0 18px; opacity: 0.9; }
.nav { display: flex; flex-wrap: wrap; gap: 10px; }
.nav a { text-decoration: none; color: #fff; background: rgba(255,255,255,0.16); padding: 10px 14px; border-radius: 10px; transition: 0.2s ease; }
.nav a:hover { background: rgba(255,255,255,0.28); }
.card { background: #fff; border-radius: 18px; padding: 24px; box-shadow: 0 8px 24px rgba(0,0,0,0.08); }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; margin-bottom: 18px; }
label { display: block; font-weight: bold; margin-bottom: 6px; }
input[type="text"], input[type="number"], input[type="date"], input[type="password"], input[type="email"], select, textarea { width: 100%; padding: 10px 12px; border: 1px solid #ccd5df; border-radius: 10px; background: #fbfcfd; }
textarea { min-height: 90px; resize: vertical; }
.button-row { display: flex; gap: 10px; flex-wrap: wrap; margin: 16px 0; }
.btn { display: inline-block; text-decoration: none; border: none; border-radius: 10px; padding: 10px 16px; background: #1f6feb; color: white; cursor: pointer; }
.btn.secondary { background: #198754; }
.btn.gray { background: #6c757d; }
.btn:hover { opacity: 0.92; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; margin-top: 12px; }
th, td { border: 1px solid #d9e2eb; padding: 10px 12px; text-align: left; vertical-align: top; }
th { background: #edf3f8; }
tr:nth-child(even) { background: #fafcfe; }
.notice { padding: 12px 14px; border-radius: 10px; margin-bottom: 16px; }
.notice.success { background: #e8f7ed; color: #126637; }
.notice.error { background: #fdeaea; color: #9c1c1c; }
.small { color: #5c6773; font-size: 0.95rem; }
.auth-box { max-width: 460px; margin: 0 auto; }
.stat-grid { display:grid; grid-template-columns: repeat(auto-fit,minmax(170px,1fr)); gap:12px; margin-bottom:18px; }
.stat { background:#f5f8fb; border:1px solid #dde7f0; border-radius:14px; padding:14px; }
.stat strong { display:block; font-size: 1.4rem; margin-top: 6px; }