@import url('https://fonts.googleapis.com/css2?family=M+PLUS+Rounded+1c:wght@500;800&display=swap');

html, body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    font-family: 'M PLUS Rounded 1c', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    
    /* Classic white and grey "transparent PNG" checkerboard */
    background-color: #ffffff;
    background-image: 
        linear-gradient(45deg, #e4e4e4 25%, transparent 25%, transparent 75%, #e4e4e4 75%, #e4e4e4),
        linear-gradient(45deg, #e4e4e4 25%, transparent 25%, transparent 75%, #e4e4e4 75%, #e4e4e4);
    background-size: 40px 40px;
    background-position: 0 0, 20px 20px;
}

.dark-container {
    background-color: #2b2b2e; /* Dark charcoal from UI reference */
    padding: 40px;
    border-radius: 12px;
    border: 3px solid #1a1a1c;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
    max-width: 500px;
    width: 90%;
    text-align: center;
    color: #e0e0e0; /* Soft light grey text */
}

.header-content h1 {
    color: #ffffff;
    margin-top: 0;
    margin-bottom: 5px;
    font-weight: 800;
    letter-spacing: 1px;
}

.subtitle {
    color: #a0a0a0;
    font-weight: 500;
    margin-top: 0;
    margin-bottom: 30px;
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 2px;
}

.status-box {
    background-color: #1e1e1f; /* Deeper inner shadow box */
    border: 2px dashed #4a4d53;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 30px;
}

.status-box p {
    margin: 8px 0;
    font-weight: 500;
    color: #cccccc;
}

.return-btn {
    background: transparent;
    color: #ffffff;
    border: 2px solid #ffffff;
    padding: 12px 25px;
    font-size: 14px;
    border-radius: 30px;
    cursor: pointer;
    font-weight: 800;
    text-decoration: none;
    display: inline-block;
    transition: all 0.2s ease;
}

.return-btn:hover {
    background: #ffffff;
    color: #2b2b2e;
}