* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Noto Sans Bengali', sans-serif; background: #f4f6f8; color: #222; }
.topbar { background: #1F4E79; color: #fff; padding: 10px 14px; }
.brand { font-size: 1.25rem; font-weight: 700; margin-bottom: 6px; }
.nav { display: flex; flex-wrap: wrap; gap: 4px; }
.nav a { color: #dce9f7; text-decoration: none; padding: 6px 10px; border-radius: 6px; font-size: .95rem; }
.nav a:hover { background: #2e6da4; color: #fff; }
.nav .logout { margin-left: auto; background: #163a5c; }
.wrap { max-width: 1000px; margin: 16px auto; padding: 0 12px; }
h1 { font-size: 1.35rem; color: #1F4E79; margin-bottom: 12px; }
h2 { font-size: 1.1rem; color: #333; margin: 18px 0 8px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; margin-bottom: 16px; }
.card { background: #fff; border-radius: 10px; padding: 12px; box-shadow: 0 1px 3px rgba(0,0,0,.08); }
.card .lbl { font-size: .8rem; color: #666; }
.card .val { font-size: 1.25rem; font-weight: 700; color: #1F4E79; margin-top: 2px; }
.card.green .val { color: #2E7D32; }
.card.red .val { color: #B00020; }
.panel { background: #fff; border-radius: 10px; padding: 14px; box-shadow: 0 1px 3px rgba(0,0,0,.08); margin-bottom: 16px; }
form.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; align-items: end; }
label { display: block; font-size: .85rem; color: #444; margin-bottom: 3px; }
input, select { width: 100%; padding: 8px; border: 1px solid #c8d0d8; border-radius: 6px; font-family: inherit; font-size: 1rem; }
button, .btn { background: #2E7D32; color: #fff; border: 0; padding: 9px 16px; border-radius: 6px; font-family: inherit; font-size: 1rem; cursor: pointer; text-decoration: none; display: inline-block; }
button:hover, .btn:hover { background: #256628; }
.btn-sm { padding: 3px 8px; font-size: .8rem; border-radius: 5px; }
.btn-edit { background: #1F4E79; }
.btn-del { background: #B00020; }
table { width: 100%; border-collapse: collapse; background: #fff; font-size: .92rem; }
th { background: #1F4E79; color: #fff; padding: 8px 6px; text-align: left; white-space: nowrap; }
td { padding: 7px 6px; border-bottom: 1px solid #e5e9ee; }
tr:nth-child(even) td { background: #f7fafd; }
tr.total td { font-weight: 700; background: #e8f0e8; }
.num { text-align: right; white-space: nowrap; }
.msg { padding: 10px 12px; border-radius: 8px; margin-bottom: 12px; }
.msg.ok { background: #e6f4e6; color: #256628; }
.msg.err { background: #fdecea; color: #B00020; }
.table-scroll { overflow-x: auto; }
.login-box { max-width: 380px; margin: 60px auto; }
.tabbar { display: flex; gap: 8px; margin-bottom: 12px; }
.tabbar a { padding: 8px 14px; background: #dfe7ef; border-radius: 8px; text-decoration: none; color: #1F4E79; font-weight: 600; }
.tabbar a.active { background: #1F4E79; color: #fff; }
@media (max-width: 600px) { .nav a { font-size: .85rem; padding: 5px 7px; } td, th { font-size: .85rem; } }