/* ===== RESET ===== */
*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family: 'Segoe UI', sans-serif;
}

body{
    background:#f4f6f9;
}

/* ===== LAYOUT ===== */
.wrapper{
    display:flex;
    min-height:100vh;
}

/* ===== SIDEBAR ===== */
.sidebar{
    width:240px;
    background:#111827;
    color:#fff;
    padding-top:20px;
}

.sidebar h2{
    text-align:center;
    margin-bottom:30px;
    font-weight:600;
}

.sidebar a{
    display:block;
    color:#cbd5e1;
    padding:14px 20px;
    text-decoration:none;
    transition:.3s;
}

.sidebar a:hover{
    background:#1f2937;
    color:#fff;
}

/* ===== CONTENT ===== */
.main{
    flex:1;
}

/* ===== TOPBAR ===== */
.topbar{
    background:#fff;
    padding:15px 25px;
    box-shadow:0 2px 8px rgba(0,0,0,.08);
    display:flex;
    justify-content:space-between;
}

/* ===== CARD ===== */
.card{
    background:#fff;
    padding:25px;
    margin:25px;
    border-radius:10px;
    box-shadow:0 3px 10px rgba(0,0,0,.08);
}

/* ===== FORM ===== */
input, select{
    width:100%;
    padding:10px;
    margin-top:8px;
    margin-bottom:15px;
    border:1px solid #ddd;
    border-radius:6px;
}

button{
    background:#2563eb;
    color:white;
    border:none;
    padding:10px 18px;
    border-radius:6px;
    cursor:pointer;
}

button:hover{
    background:#1d4ed8;
}

/* ===== TABLE ===== */
table{
    width:100%;
    border-collapse:collapse;
}

table th{
    background:#111827;
    color:white;
    padding:12px;
}

table td{
    padding:10px;
    border-bottom:1px solid #eee;
}

table tr:hover{
    background:#f9fafb;
}

/* ===== LOGIN PAGE ===== */
.login-box{
    width:350px;
    margin:120px auto;
    background:#fff;
    padding:30px;
    border-radius:10px;
    box-shadow:0 4px 15px rgba(0,0,0,.1);
}

.login-box h2{
    text-align:center;
    margin-bottom:20px;
}