* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #0a192f, #020c1b);
    color: white;
}

/* HEADER BANNER */
.banner {
    background: linear-gradient(135deg, #0d6efd, #001f3f);
    padding: 40px 15px;
    text-align: center;
    font-size: 20px;
    font-weight: bold;
    letter-spacing: 0.5px;
    animation: fadeDown 1s ease;
}

/* CONTAINER */
.container {
    padding: 15px;
    display: flex;
    justify-content: center;
}

/* GLASS CARD */
.card {
    width: 100%;
    max-width: 500px;
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(15px);
    border-radius: 15px;
    padding: 18px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    animation: fadeUp 1s ease;
}

/* INPUT */
input, textarea {
    width: 100%;
    padding: 12px;
    margin: 8px 0;
    border-radius: 8px;
    border: none;
    font-size: 14px;
    background: rgba(255,255,255,0.08);
    color: white;
}

input::placeholder,
textarea::placeholder {
    color: #bbb;
}

input:focus, textarea:focus {
    outline: none;
    border: 1px solid #0d6efd;
}

/* BUTTON */
button {
    width: 100%;
    padding: 12px;
    background: #0d6efd;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    margin-top: 10px;
    cursor: pointer;
    transition: 0.3s;
}

button:hover {
    background: #0b5ed7;
}

/* TABLE */
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
    font-size: 13px;
}

th {
    background: #0d6efd;
}

th, td {
    padding: 8px;
    border-bottom: 1px solid #333;
}

/* MOBILE PERFECT */
@media (max-width: 600px) {
    .banner {
        font-size: 16px;
        padding: 25px 10px;
    }

    .card {
        padding: 15px;
    }

    input, textarea {
        font-size: 13px;
        padding: 10px;
    }
}

/* ANIMATION */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
.footer {
    margin-top: 40px;
    padding: 20px 15px;
    text-align: center;
    background: linear-gradient(135deg, #001f3f, #0a192f);
    color: #ccc;
    font-size: 14px;
    animation: fadeUp 1.2s ease;
}

.footer strong {
    color: #0d6efd;
}

.footer a {
    color: #0d6efd;
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}