:root {
    --isu-green: #2e7d32;
    --isu-green-light: #4caf50;
    --isu-green-bg: #e8f5e9;
    --isu-gold: #ffc107;
    --isu-dark: #1b5e20;
}

body {
    background: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 100%);
    font-family: 'Segoe UI', 'Poppins', sans-serif;
    min-height: 100vh;
}

/* Layout */
.container-fluid {
    padding: 20px 30px;
}

/* Cards */
.card {
    border: none;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(46, 125, 50, 0.15);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    background: white;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(46, 125, 50, 0.25);
}

.card-header {
    background: linear-gradient(135deg, var(--isu-green) 0%, var(--isu-dark) 100%);
    color: white;
    border-radius: 20px 20px 0 0 !important;
    padding: 20px;
    font-weight: bold;
}

/* Buttons */
.btn {
    border-radius: 50px;
    padding: 10px 25px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-success {
    background: var(--isu-green);
    border-color: var(--isu-green);
}

.btn-success:hover {
    background: var(--isu-dark);
    border-color: var(--isu-dark);
    transform: scale(1.05);
}

.btn-warning {
    background: var(--isu-gold);
    border-color: var(--isu-gold);
    color: #333;
}

.btn-warning:hover {
    background: #e0a800;
    transform: scale(1.05);
}

/* Candidate Card */
.candidate {
    text-align: center;
    padding: 20px;
    border-radius: 20px;
    transition: all 0.3s ease;
    background: #fafafa;
    margin-bottom: 20px;
}

.candidate:hover {
    background: var(--isu-green-bg);
    transform: translateY(-8px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}

.candidate img {
    width: 120px;
    height: 120px;
    object-fit: cover;
    border-radius: 50%;
    border: 4px solid var(--isu-green);
    padding: 4px;
    background: white;
}

.candidate input[type="radio"] {
    transform: scale(1.3);
    margin-top: 10px;
    accent-color: var(--isu-green);
}

/* Progress Bar */
.progress {
    height: 25px;
    border-radius: 50px;
    background-color: #e9ecef;
}

.progress-bar {
    background: linear-gradient(90deg, var(--isu-green) 0%, var(--isu-green-light) 100%);
    border-radius: 50px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Forms */
.form-control, .form-select {
    border-radius: 12px;
    border: 2px solid #e0e0e0;
    padding: 12px 15px;
    transition: all 0.3s ease;
}

.form-control:focus, .form-select:focus {
    border-color: var(--isu-green);
    box-shadow: 0 0 0 0.2rem rgba(46, 125, 50, 0.25);
}

/* Sidebar Navigation */
.sidebar {
    background: white;
    border-radius: 20px;
    padding: 20px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

.sidebar .nav-link {
    color: #333;
    border-radius: 12px;
    padding: 12px 20px;
    margin-bottom: 8px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.sidebar .nav-link:hover {
    background: var(--isu-green-bg);
    color: var(--isu-green);
    transform: translateX(5px);
}

.sidebar .nav-link.active {
    background: var(--isu-green);
    color: white;
}

/* Alerts */
.alert-success {
    background: var(--isu-green-bg);
    border-color: var(--isu-green);
    color: var(--isu-dark);
    border-radius: 12px;
    font-weight: 500;
}

/* Login Page */
.login-card {
    background: white;
    border-radius: 30px;
    padding: 40px;
    box-shadow: 0 20px 50px rgba(46, 125, 50, 0.2);
    max-width: 450px;
    width: 100%;
}

.login-card h3 {
    color: var(--isu-green);
    font-weight: bold;
    margin-bottom: 30px;
}

/* Responsive */
@media (max-width: 768px) {
    .container-fluid {
        padding: 15px;
    }
    
    .sidebar {
        margin-bottom: 20px;
    }
    
    .candidate img {
        width: 80px;
        height: 80px;
    }
}