:root {
    --bg-light: #f5f7fa;
    --primary: #2563eb;
    --secondary: #1e40af;
    --text-dark: #333;
    --text-light: #666;
    --white: #ffffff;
}

body {
    background-color: var(--bg-light);
    color: var(--text-dark);
    font-family: 'Segoe UI', system-ui, sans-serif;
    margin: 0;
}

.navbar {
    background-color: var(--white);
    padding: 15px 30px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.container {
    max-width: 1200px;
    margin: 20px auto;
    padding: 0 20px;
}

.card {
    background-color: var(--white);
    border-radius: 8px;
    padding: 25px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    margin-bottom: 20px;
}

.btn-erp {
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    color: white;
    padding: 15px 30px;
    font-size: 1.2em;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: transform 0.2s;
}

.btn-erp:hover {
    transform: translateY(-2px);
}

.tabs {
    display: flex;
    border-bottom: 2px solid #eee;
    margin-bottom: 20px;
}

.tab {
    padding: 10px 20px;
    cursor: pointer;
    color: var(--text-light);
}

.tab.active {
    color: var(--primary);
    border-bottom: 2px solid var(--primary);
    margin-bottom: -2px;
}

.plan-card {
    border: 1px solid #eee;
    border-radius: 8px;
    padding: 20px;
    text-align: center;
}

.plan-card.featured {
    border-color: var(--primary);
    box-shadow: 0 0 15px rgba(37,99,235,0.2);
}

.badge {
    padding: 5px 10px;
    border-radius: 15px;
    font-size: 0.85em;
    font-weight: bold;
}
.badge.paid { background: #dcfce7; color: #166534; }
.badge.pending { background: #fef08a; color: #854d0e; }