:root {
    --primary: #3498db; /* Biru Muda */
    --secondary: #f39c12; /* Oranye */
    --secondary-alt: #27ae60; /* Hijau alternatif */
    --background: #f8f9fa; /* Abu terang */
    --text: #333333;
    --white: #ffffff;
    --light-gray: #e9ecef;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--background);
    color: var(--text);
    line-height: 1.6;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Utility Classes */
.text-center { text-align: center; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.hidden { display: none; }

/* Loading State */
.loading {
    text-align: center;
    padding: 50px 0;
}

.loading h2 {
    color: var(--primary);
}