r /* File: style.css */
/* Deskripsi: Stylesheet untuk sistem gamifikasi */
/* Dibuat oleh: [Nama Anda] */
/* Tanggal: [Tanggal Pembuatan] */

/* Reset dan Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background: linear-gradient(135deg, #3498db 0%, #2c3e50 100%);
    color: #fff;
    line-height: 1.6;
    min-height: 100vh;
    background-attachment: fixed;
    background-size: cover;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    text-align: center;
    background-color: rgba(255, 255, 255, 0.9);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    color: #333;
}

.card-hasil {
    background-color: rgba(255, 255, 255, 0.95);
}

h1 {
    color: #2c3e50;
    margin: 0 auto 0.8rem;
    font-size: clamp(1rem, 2.5vw, 1.2rem);
    max-width: 100%;
    line-height: 1.1;
    padding: 0 0.5rem;
    word-wrap: break-word;
    font-weight: 600;
    text-align: center;
}

@media (max-width: 480px) {
    h1 {
        font-size: 1rem;
        margin: 0 auto 0.5rem;
        line-height: 1.2;
        padding: 0 0.25rem;
    }
}

/* Form Styles */
.form-voucher {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 500px;
    margin: 0 auto;
}

.form-voucher input {
    padding: 1rem;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 1.1rem;
}

.form-voucher input:focus {
    outline: none;
    border-color: #3498db;
}

/* Button Styles */
button, .btn {
    background-color: #3498db;
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1.1rem;
    transition: background-color 0.3s;
    text-decoration: none;
    display: inline-block;
}

button:hover, .btn:hover {
    background-color: #2980b9;
}

/* Grid Angka */
.grid-angka {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
    padding: 0.5rem;
}

.angka {
    background-color: white;
    border-radius: 8px;
    padding: 1rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
    aspect-ratio: 1/1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
}

.angka span {
    font-size: 1.2rem;
    font-weight: bold;
    color: #2c3e50;
    margin-top: 0.5rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
    background-color: rgba(255,255,255,0.8);
    padding: 0.3rem 0.8rem;
    border-radius: 50px;
    display: inline-block;
}

.angka.terpilih span {
    color: white;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
    background-color: rgba(0,0,0,0.3);
}

.angka .pemenang-voucher {
    font-size: 0.9rem;
    margin-top: 0.5rem;
    color: #3498db;
    font-weight: normal;
    background: none;
    padding: 0;
}

.angka .label-voucher {
    font-size: 0.8rem;
    color: #7f8c8d;
    margin-top: 0.3rem;
}

.angka .kode-voucher-pemenang {
    font-size: 1rem;
    font-weight: bold;
    color: #2c3e50;
    background-color: #f8f9fa;
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
    margin-top: 0.2rem;
    display: inline-block;
}

.angka.terpilih .kode-voucher-pemenang {
    color: white;
    background-color: rgba(0,0,0,0.3);
}

.angka:hover:not(.terpilih) {
    transform: translateY(-5px);
}

.angka.terpilih {
    background: linear-gradient(135deg, #f1c40f 0%, #e67e22 100%);
    color: white;
    transform: scale(1.05);
    box-shadow: 0 6px 12px rgba(230, 126, 34, 0.3);
    position: relative;
    z-index: 1;
}

.angka.terpilih::after {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    border: 2px solid #f1c40f;
    border-radius: 12px;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    100% {
        transform: scale(1.1);
        opacity: 0;
    }
}

.angka img {
    width: 80px;
    height: 80px;
    object-fit: contain;
    margin-bottom: 0.5rem;
}

@media (max-width: 768px) {
    .angka img {
        width: 60px;
        height: 60px;
    }
}

@media (max-width: 480px) {
    .angka img {
        width: 100px;
        height: 100px;
    }
}

/* Card Hasil */
.card-hasil {
    background-color: white;
    border-radius: 16px;
    padding: 2.5rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    max-width: 600px;
    margin: 2rem auto;
    text-align: center;
    transition: transform 0.3s ease;
}

.card-hasil:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.15);
}

.gambar-hadiah {
    display: flex;
    justify-content: center;
    margin: 1.5rem 0;
}

.gambar-hadiah img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    object-fit: contain;
}

/* Ukuran gambar untuk desktop */
@media (min-width: 769px) {
    .gambar-hadiah img {
        width: 200px;
        height: 200px;
    }
}

/* Ukuran gambar untuk tablet */
@media (max-width: 768px) {
    .gambar-hadiah img {
        width: 180px;
        height: 180px;
    }
}

/* Ukuran gambar untuk mobile */
@media (max-width: 480px) {
    .gambar-hadiah img {
        width: 120px;
        height: 120px;
    }
}

.container.hasil {
    padding-top: 1rem;
}

.kode-voucher {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 8px;
    padding: 1.2rem;
    margin: 1.5rem 0;
    border-left: 4px solid #3498db;
}

.btn {
    background: linear-gradient(135deg, #3498db 0%, #2c3e50 100%);
    color: white;
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    display: inline-block;
    margin-top: 1rem;
    transition: all 0.3s ease;
}

.btn:hover {
    background: linear-gradient(135deg, #2980b9 0%, #1a252f 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

/* Error Messages */
.error, .pesan-error {
    color: #e74c3c;
    background-color: #fadbd8;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.pesan-error {
    max-width: 600px;
    margin: 0 auto;
}

/* Kode Voucher */
.kode-voucher {
    margin: 1.5rem 0;
    padding: 1rem;
    background-color: #f8f9fa;
    border-radius: 8px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .grid-angka {
        grid-template-columns: repeat(3, 1fr);
    }
    
    h1 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .grid-angka {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
    }
    
    .container {
        padding: 1rem;
    }

    h1 {
        font-size: 1.8rem;
        margin-bottom: 1.5rem;
    }

    .angka span {
        font-size: 1rem;
        padding: 0.2rem 0.6rem;
    }
}

/* Header Styles */
.main-header {
    background-color: #2c3e50;
    padding: 1.5rem 0;
    text-align: center;
    border-radius: 0 0 20px 20px;
    margin-bottom: 2rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.main-header .logo {
    max-height: 80px;
    width: auto;
    padding: 0;
    border-radius: 0;
    background-color: transparent;
}

/* Modern Back Button Style */
.btn-kembali {
    position: fixed;
    top: 20px;
    left: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background-color: #ffffff;
    color: #2c3e50;
    text-decoration: none;
    border-radius: 30px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    z-index: 100;
    border: none;
    font-weight: 500;
}

.btn-kembali:hover {
    background-color: #f8f9fa;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
}

.btn-kembali svg {
    transition: transform 0.3s ease;
}

.btn-kembali:hover svg {
    transform: translateX(-3px);
}