/* Base body styling */
body {
    background-color: #f5faff;
    font-family: 'Segoe UI', sans-serif;
    color: #1a1a1a;
    margin: 0;
    padding: 0;
}

/* Premium Royal Blue Color Palette */
:root {
    --primary: #0056b3;        /* Royal Blue */
    --primary-light: #e8f0fc;  /* Soft blue bg */
    --secondary: #ffffff;      /* Clean white */
    --accent: #007bff;         /* Bootstrap blue accent */
    --shadow: rgba(0, 0, 0, 0.1);
}

.logo {
    max-width: 140px;
    margin-bottom: 1rem;
    border-radius: 8px; /* sudut agak halus */
    filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.1)); /* bayangan halus */
    transition: transform 0.3s ease;
}

/* Section title with elegant border */
.section-title {
    border-left: 5px solid var(--primary);
    padding-left: 14px;
    margin-bottom: 20px;
    font-weight: 600;
    font-size: 1.2rem;
    color: var(--primary);
}

/* Page heading */
h2 {
    font-weight: 700;
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}
p {
    font-size: 1rem;
    color: #555;
}

/* Card design */
.card-custom {
    border-radius: 14px;
    background-color: var(--secondary);
    border: 1px solid #dee2e6;
    box-shadow: 0 2px 8px var(--shadow);
    padding: 20px;
}

/* Buttons */
.btn {
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.2s ease-in-out;
}
.btn:hover {
    opacity: 0.95;
    transform: translateY(-1px);
}
.btn-primary {
    background-color: var(--primary);
    border-color: var(--primary);
}
.btn-outline-primary {
    border-color: var(--primary);
    color: var(--primary);
}
.btn-outline-primary:hover {
    background-color: var(--primary);
    color: white;
}

/* Icon button spacing */
.btn-icon {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.95rem;
    padding: 0.45rem 0.9rem;
}

/* List group items */
.list-group-item {
    font-size: 0.95rem;
    border: none;
    background-color: #fff;
}

/* Form input focus */
input:focus, select:focus {
    box-shadow: 0 0 0 0.2rem rgba(0, 86, 179, 0.25);
    border-color: var(--primary);
}

/* Responsive tweaks */
@media (max-width: 576px) {
    h2 {
        font-size: 1.5rem;
    }
    .section-title {
        font-size: 1rem;
    }
    .btn-icon {
        font-size: 0.9rem;
        padding: 0.4rem 0.8rem;
    }
}