:root {
    --primary: #2563eb;
    --dark: #1e293b;
    --bg: #f8fafc;
    --white: #ffffff;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg);
    color: var(--dark);
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navbar */
.navbar {
    background: var(--white);
    padding: 1rem 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
}

.logo span { color: var(--primary); }

.nav-menu {
    display: flex;
    list-style: none;
    align-items: center;
}

.nav-menu li { margin-left: 2rem; }

.nav-menu a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
}

.btn-user {
    background: var(--primary);
    color: white !important;
    padding: 8px 20px;
    border-radius: 8px;
}

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Header */
.pay-header {
    text-align: center;
    padding: 3rem 0;
}

.pay-header h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.pay-header p { color: #64748b; }

/* Grid Pembayaran */
.payment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 3rem;
}

.pay-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    border: 1px solid #e2e8f0;
    transition: 0.3s;
}

.pay-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.05);
    border-color: var(--primary);
}

.pay-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.pay-card h3 { margin-bottom: 0.5rem; }

.pay-card p {
    font-size: 0.9rem;
    color: #64748b;
    margin-bottom: 1.5rem;
    min-height: 40px;
}

.btn-select {
    display: inline-block;
    width: 100%;
    padding: 10px;
    background: #f1f5f9;
    color: var(--dark);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: 0.3s;
}

.pay-card:hover .btn-select {
    background: var(--primary);
    color: white;
}

/* Info Section */
.info-card {
    background: #1e293b;
    color: white;
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    max-width: 400px;
    margin: 0 auto 4rem;
}

.amount {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 1rem 0;
}

/* Responsive */
@media (max-width: 768px) {
    .menu-toggle { display: block; }
    .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background: white;
        padding: 20px;
        box-shadow: 0 10px 10px rgba(0,0,0,0.1);
    }
    .nav-menu.active { display: flex; }
    .nav-menu li { margin: 10px 0; }
}