:root{
    --primary: #0F5132;
    --secondary: #198754;
    --light: #D1E7DD;
    --bg: #F5F7F9;
    --white: #FFFFFF;
    --border: #E5E7EB;
    --shadow: 0 2px 8px rgba(0,0,0,.08);
}

*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body{
    font-family: "Segoe UI", Arial, sans-serif;
    background: var(--bg);
    color: #333;
    line-height: 1.5;
}

/* ==========================
   HEADER
========================== */

.header{
    background: linear-gradient(
        90deg,
        var(--primary),
        var(--secondary)
    );
    color: var(--white);
    padding: 20px 30px;
}

.brand{
    font-size: 28px;
    font-weight: 700;
}

.subtitle{
    font-size: 14px;
    opacity: .9;
}

/* ==========================
   NAVBAR
========================== */

.navbar{
    background: var(--white);
    padding: 0 20px;
    box-shadow: var(--shadow);
}

.navbar a{
    display: inline-block;
    padding: 15px 20px;
    text-decoration: none;
    color: #333;
    font-weight: 600;
    transition: .3s;
}

.navbar a:hover{
    background: var(--light);
    color: var(--primary);
}

/* ==========================
   CONTAINER
========================== */

.container{
    padding: 25px;
}

/* ==========================
   KPI CARD
========================== */

.cards{
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    margin-bottom: 20px;
}

.card{
    background: var(--white);
    border-radius: 14px;
    padding: 20px;
    box-shadow: var(--shadow);
}

.card small{
    display: block;
    color: #666;
    margin-bottom: 8px;
}

.card h2{
    color: var(--secondary);
    font-size: 30px;
}

/* ==========================
   CONTENT SECTION
========================== */

.section{
    background: var(--white);
    border-radius: 14px;
    padding: 20px;
    margin-top: 20px;
    box-shadow: var(--shadow);
}

.section h3{
    margin-bottom: 15px;
}

/* ==========================
   CHART
========================== */

.chart-container{
    position: relative;
    height: 300px;
}

.chart-container canvas{
    max-height: 300px !important;
}

/* ==========================
   TABLE
========================== */

.table-responsive{
    overflow-x: auto;
}

table{
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
}

th{
    background: var(--primary);
    color: var(--white);
}

th,
td{
    border: 1px solid var(--border);
    padding: 10px;
    text-align: left;
}

tr:nth-child(even){
    background: #FAFAFA;
}

.chart-container{
position: relative;
height: 300px;
width: 100%;
}

.pie-container{
width:100%;
max-width:450px;
height:300px;
margin:auto;
position:relative;
}


/* ==========================
   FORM
========================== */

.form-grid{
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

input,
select,
textarea{
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #CCC;
    border-radius: 8px;
    font-size: 14px;
}

input:focus,
select:focus,
textarea:focus{
    outline: none;
    border-color: var(--secondary);
}

/* ==========================
   BUTTON
========================== */

.btn{
    background: var(--secondary);
    color: var(--white);
    border: none;
    padding: 10px 18px;
    border-radius: 8px;
    cursor: pointer;
    transition: .3s;
}

.btn:hover{
    background: var(--primary);
}

/* ==========================
   LOGIN PREMIUM
========================== */

.login-page{
    min-height:100vh;
    display:flex;
    justify-content:center;
    align-items:center;

    background:
    linear-gradient(
        135deg,
        #0F5132 0%,
        #198754 100%
    );
}

.login-card{
    width:480px;
    background:#FFFFFF;

    border-radius:24px;

    padding:45px;

    text-align:center;

    border-top:6px solid #198754;

    box-shadow:
    0 20px 50px rgba(0,0,0,.25);
}

.login-logo{
    width:90px;
    height:auto;
    display:block;
    margin:0 auto 15px;
}

.login-header h1{
    color:#0F5132;
    font-size:34px;
    margin-bottom:5px;
}

.login-header h4{
    color:#198754;
    margin-bottom:10px;
}

.login-header p{
    color:#666;
    font-size:14px;
    margin-bottom:30px;
}

.input-group-custom{
    display:flex;
    align-items:center;

    border:1px solid #DDD;
    border-radius:12px;

    overflow:hidden;

    margin-bottom:15px;

    background:#FFF;
}

.input-group-custom i{
    width:55px;
    background:#F5F7F9;
    padding:14px;
    color:#198754;
}

.input-group-custom input{
    border:none;
    padding:14px;
    font-size:15px;
}

.input-group-custom input:focus{
    outline:none;
}

.btn-login{
    width:100%;

    background:#198754;
    color:#FFF;

    border:none;

    padding:14px;

    border-radius:12px;

    font-size:16px;
    font-weight:600;

    letter-spacing:.5px;

    cursor:pointer;

    transition:.3s;
}




/* ==========================
   RESPONSIVE
========================== */

@media (max-width: 992px){

    .cards{
        grid-template-columns: repeat(2, 1fr);
    }

    .form-grid{
        grid-template-columns: repeat(2, 1fr);
    }

}

@media (max-width: 768px){

    .cards{
        grid-template-columns: 1fr;
    }

    .form-grid{
        grid-template-columns: 1fr;
    }

    .navbar a{
        display: block;
        border-bottom: 1px solid #EEE;
    }

}