/* Tampilan Modern & Powerful */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%); /* Deep Blue Theme */
    margin: 0;
    padding: 0;
    min-height: 100vh;
    color: #333;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    background: rgba(255, 255, 255, 0.95);
    padding: 30px;
    border-radius: 15px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.3);
    margin: 20px;
}

/* Header & Judul */
h1, h2, h3 {
    text-align: center;
    color: #1e3c72;
    margin-top: 0;
}

.header {
    background: #eef2f3;
    padding: 15px;
    border-radius: 10px;
    text-align: center;
    margin-bottom: 20px;
    font-size: 1.2em;
    color: #555;
}

/* Input & Form */
input[type="text"] {
    width: 100%;
    padding: 15px;
    margin: 10px 0 20px 0;
    border: 2px solid #ddd;
    border-radius: 8px;
    box-sizing: border-box;
    font-size: 16px;
    transition: border 0.3s;
}
input[type="text"]:focus {
    border-color: #1e3c72;
    outline: none;
}

/* Tombol-tombol Keren */
button, .btn, .btn-danger {
    width: 100%;
    padding: 15px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    font-weight: bold;
    text-transform: uppercase;
    transition: transform 0.1s, opacity 0.2s;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    box-sizing: border-box;
    margin-bottom: 10px;
}

button:active, .btn:active { transform: scale(0.98); }

button { background: #007bff; color: white; box-shadow: 0 4px 0 #0056b3; }
button:disabled { background: #ccc; box-shadow: none; cursor: not-allowed; }

.btn-danger { background: #dc3545; color: white; box-shadow: 0 4px 0 #a71d2a; }
.btn-success { background: #28a745; color: white; box-shadow: 0 4px 0 #1e7e34; }

/* Grid Jawaban A,B,C,D */
#options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-top: 20px;
}

.btn-opt {
    background: #17a2b8;
    box-shadow: 0 4px 0 #117a8b;
    text-align: left;
    padding: 20px;
    font-size: 18px;
}

/* Admin Table */
table { width: 100%; border-collapse: collapse; margin-top: 10px; background: white; }
th { background: #1e3c72; color: white; padding: 12px; }
td { border-bottom: 1px solid #ddd; padding: 12px; }
tr:hover { background: #f1f1f1; }
.live-row { background-color: #d4edda !important; font-weight: bold; }

/* Scoreboard Khusus */
.score-card {
    display: flex;
    justify-content: space-between;
    padding: 15px;
    border-bottom: 1px solid #eee;
    font-size: 1.2em;
}
.rank-1 { color: #d35400; font-weight: bold; font-size: 1.4em; }