body {
    background: linear-gradient(145deg, #0a2a43, #0f3b5c); /* biru metalik */
    color: #e1f0ff;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
}

/* HEADER */
header .bg-black {
    background: linear-gradient(to right, #0b1f33, #14476c);
    padding: 1rem 2rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
    border-bottom: 2px solid #1e6aa6;
}

/* MAIN */
main {
    padding: 2rem;
    background: linear-gradient(135deg, #1c3d5a, #256c9e);
    border-radius: 16px;
    margin: 2rem auto;
    max-width: 960px;
    box-shadow: inset 0 0 10px rgba(0,0,0,0.2), 0 8px 20px rgba(0,0,0,0.4);
}

/* FOOTER */
footer {
    background: linear-gradient(to right, #0b1f33, #14476c);
    padding: 1rem 2rem;
    text-align: center;
    border-top: 2px solid #1e6aa6;
    color: #e1f0ff;
}

.footer-link {
    color: #7dc4ff;
    transition: color 0.3s ease;
}
.footer-link:hover {
    color: #ffffff;
    text-decoration: underline;
}

/* NAV */
.nav-link {
    color: #ffffff;
    transition: color 0.3s ease;
}
.nav-link:hover {
    color: #a9ddff;
}

/* TABLE */
table {
    width: 100%;
    background-color: #12324c;
    border-radius: 12px;
    overflow: hidden;
    margin: 2rem auto;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.4);
    border: 1px solid #1e6aa6;
}

th, td {
    background-color: #1a4669;
    color: #e1f0ff;
    border: 1px solid #2c628a;
    padding: 0.75rem;
    text-align: left;
}
th {
    background-color: #215f8c;
    font-weight: bold;
    color: #c7e6ff;
    text-transform: uppercase;
    letter-spacing: 1px;
}
td a {
    color: #7dc4ff;
    transition: color 0.3s ease;
}
td a:hover {
    color: #ffffff;
}

/* HIGHLIGHT */
.highlight {
    color: #c7e6ff;
}

/* SEARCH BAR */
.search-bar {
    background-color: #183a57;
    border: 1px solid #2e7bbf;
    color: #e1f0ff;
    border-radius: 9999px;
    padding: 0.75rem 1rem;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.4);
    transition: all 0.3s ease;
}
.search-bar::placeholder {
    color: #a5d4f5;
}
.search-bar:focus {
    outline: none;
    border-color: #57aaff;
    box-shadow: 0 0 12px rgba(87, 170, 255, 0.5);
}

/* BUTTON */
button,
.search-button {
    background-color: #183a57;
    border: 1px solid #2e7bbf;
    color: #e1f0ff;
    border-radius: 9999px;
    padding: 0.75rem 1.5rem;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}
button:hover,
.search-button:hover {
    background-color: #57aaff;
    color: #fff;
    box-shadow: 0 0 10px rgba(87, 170, 255, 0.5);
}

/* IMAGE STYLE */
img {
    border: 2px solid #2e7bbf;
    border-radius: 12px;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.4);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
img:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.6);
}