* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: Arial, sans-serif; background: #f3f6fb; color: #1d2b3a; }
a { text-decoration: none; }
.hero { display: grid; grid-template-columns: 2fr 1fr; gap: 24px; padding: 50px; background: linear-gradient(135deg, #173b8f, #2356d7); color: #fff; }
.hero h1 { font-size: 42px; margin-bottom: 14px; }
.hero p { font-size: 16px; line-height: 1.7; }
.hero-card, .card, .login-box { background: #fff; color: #1d2b3a; border-radius: 16px; box-shadow: 0 12px 30px rgba(0,0,0,.08); }
.hero-card { padding: 24px; }
.section { padding: 32px 50px; }
.section-head { margin-bottom: 16px; }
.cards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.cards-grid.four { grid-template-columns: repeat(4, 1fr); }
.cards-grid.three { grid-template-columns: repeat(3, 1fr); }
.card { padding: 22px; }
.btn { display: inline-block; padding: 12px 18px; border-radius: 10px; border: none; cursor: pointer; font-weight: 700; }
.btn.primary { background: #2356d7; color: #fff; }
.btn.secondary { background: #fff; color: #173b8f; }
.btn.small { padding: 8px 12px; font-size: 12px; }
.cta-row { display: flex; gap: 12px; margin-top: 22px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; background: #fff; }
th, td { padding: 14px; border-bottom: 1px solid #e8edf5; text-align: left; }
th { background: #eaf0fc; }
.layout { display: flex; min-height: calc(100vh - 60px); }
.sidebar { width: 250px; background: #102a5a; color: #fff; padding: 24px 18px; }
.brand { font-size: 22px; font-weight: bold; margin-bottom: 26px; }
.sidebar nav a { display: block; color: #dce7ff; padding: 12px 14px; margin-bottom: 8px; border-radius: 10px; }
.sidebar nav a:hover { background: rgba(255,255,255,.12); }
.content { flex: 1; padding: 28px; }
.page-header { margin-bottom: 22px; }
.stat-card h3 { font-size: 32px; color: #2356d7; margin-bottom: 8px; }
.footer { text-align: center; padding: 18px; background: #0d1c3a; color: #fff; }
.login-page { min-height: calc(100vh - 60px); display: grid; place-items: center; padding: 30px; }
.login-box { width: 100%; max-width: 1000px; padding: 28px; }
.login-box.wide { max-width: 1100px; }
.login-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: 20px; }
.form-card label { display: block; margin: 12px 0 6px; font-weight: 700; }
input, select { width: 100%; padding: 12px; border: 1px solid #d8dfeb; border-radius: 10px; margin-bottom: 12px; }
.grid-form { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.grid-form.two-col { grid-template-columns: repeat(2, 1fr); }
.alert { background: #ffe8e8; color: #a52c2c; padding: 12px 16px; border-radius: 10px; margin: 10px 0 16px; }
.alert.success { background: #e7f8ec; color: #1e7a3c; }
.badge { display: inline-block; padding: 6px 10px; background: #e7eefc; border-radius: 999px; font-size: 12px; }
.muted { color: #6a7a90; }
.feature-list { padding-left: 20px; line-height: 2; }
.profile-card p { margin-bottom: 12px; }
@media (max-width: 900px) {
    .hero, .login-grid, .cards-grid, .cards-grid.four, .cards-grid.three, .grid-form, .grid-form.two-col { grid-template-columns: 1fr; }
    .layout { flex-direction: column; }
    .sidebar { width: 100%; }
    .section, .hero, .content { padding: 20px; }
}