body {
    font-family: Arial;
    background: #f4f6f9;
    text-align: center;
}

h1 {
    margin-top: 20px;
}

.container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    padding: 20px;
}

.card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    cursor: pointer;
    transition: 0.3s;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.card:hover {
    transform: scale(1.05);
}

.card img {
    width: 100%;
    height: 150px;
    object-fit: cover;
}

.detail {
    max-width: 700px;
    margin: auto;
}

.detail-img {
    width: 100%;
    border-radius: 15px;
}

button {
    margin: 10px;
    padding: 10px 20px;
    border: none;
    background: #007bff;
    color: white;
    border-radius: 10px;
    cursor: pointer;
}

.quiz-box {
    background: white;
    margin: 20px auto;
    padding: 20px;
    width: 60%;
    border-radius: 10px;
}
/* MODAL BACKGROUND */
.modal {
    display: none;
    position: fixed;
    z-index: 999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    
    background: rgba(0,0,0,0.7);
    justify-content: center;
    align-items: center;
}

/* MODAL BOX */
.modal-content {
    background: white;
    padding: 20px;
    width: 60%;
    border-radius: 15px;
    text-align: center;
    animation: fadeIn 0.3s ease;
}

/* GAMBAR */
.modal-img {
    width: 100%;
    max-height: 300px;
    object-fit: cover;
    border-radius: 10px;
}

/* TOMBOL CLOSE */
.close {
    float: right;
    font-size: 28px;
    cursor: pointer;
}

/* ANIMASI */
@keyframes fadeIn {
    from {opacity: 0; transform: scale(0.8);}
    to {opacity: 1; transform: scale(1);}
}

/* QUIZ CONTAINER */
.quiz-container {
    max-width: 800px;
    margin: auto;
    padding: 20px;
}

/* BACK BUTTON */
.back-btn {
    display: inline-block;
    margin-bottom: 20px;
    text-decoration: none;
    color: white;
    background: #333;
    padding: 8px 15px;
    border-radius: 8px;
}

/* START BUTTON */
.start-btn {
    padding: 15px 30px;
    font-size: 18px;
    background: green;
    color: white;
    border-radius: 10px;
    border: none;
    cursor: pointer;
}

/* TIMER */
.timer {
    font-size: 18px;
    margin-bottom: 15px;
    font-weight: bold;
}

/* QUIZ BOX */
.quiz-box {
    background: white;
    margin: 15px 0;
    padding: 20px;
    border-radius: 10px;
    text-align: left;
}

/* RADIO STYLE */
.quiz-box label {
    display: block;
    margin: 5px 0;
}

/* SUBMIT BUTTON */
#submitBtn {
    padding: 10px 20px;
    background: blue;
    color: white;
    border-radius: 8px;
    border: none;
    cursor: pointer;
}

/* BODY MOBILE STYLE */
body {
    font-family: 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #667eea, #764ba2);
    margin: 0;
    padding: 0;
}

/* CONTAINER SEPERTI HP */
.quiz-container {
    max-width: 420px;
    margin: auto;
    padding: 20px;
}

/* HEADER */
h1 {
    color: white;
    text-align: center;
}

/* BACK BUTTON */
.back-btn {
    display: inline-block;
    margin-bottom: 15px;
    color: white;
    text-decoration: none;
    font-size: 14px;
}

/* START BUTTON */
.start-btn {
    width: 100%;
    padding: 15px;
    background: #00c853;
    color: white;
    font-size: 18px;
    border-radius: 12px;
    border: none;
}

/* TIMER */
.timer {
    background: white;
    padding: 10px;
    border-radius: 10px;
    text-align: center;
    margin-bottom: 15px;
    font-weight: bold;
}

/* CARD SOAL */
.quiz-box {
    background: white;
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 15px;
}

/* OPSI JAWABAN (TOMBOL BESAR) */
.option {
    display: block;
    background: #f1f3f6;
    padding: 12px;
    margin: 8px 0;
    border-radius: 10px;
    cursor: pointer;
    transition: 0.2s;
}

/* HILANGKAN RADIO DEFAULT */
.option input {
    display: none;
}

/* SAAT DIPILIH */
.option input:checked + span {
    background: #4caf50;
    color: white;
    display: block;
    padding: 10px;
    border-radius: 8px;
}

/* HOVER */
.option:hover {
    background: #dfe6ff;
}

/* SUBMIT */
#submitBtn {
    width: 100%;
    padding: 15px;
    background: #2962ff;
    color: white;
    border-radius: 12px;
    border: none;
    font-size: 16px;
}