/* ===== BODY & BACKGROUND ===== */
body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    background: url("/static/bg.jpg") no-repeat center center fixed;
    background-size: cover;
}

/* ===== OVERLAY ===== */
.overlay {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: rgba(0, 0, 0, 0.45);
    padding: 50px;
}

/* ===== MAIN CARD ===== */
.main-card {
    width: 90%;
    max-width: 700px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 30px;
    text-align: center;
}

/* ===== HEADER ===== */
.header-section {
    margin-bottom: 25px;
}

.header-image {
    width: 150px;
    height: 50px;
    margin-bottom: 15px;
}

.header-section h1 {
    margin: 0;
    color: #222;
    font-size: 28px;
}

/* ===== INFO BLOCKS (x1,x2,x3,x4) ===== */
.content-section {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-bottom: 25px;
    gap: 10px;
}

.info-block {
    background: #f3f6fb;
    flex: 1 1 45%;
    padding: 15px;
    border-radius: 12px;
    font-size: 18px;
    font-weight: bold;
    color: #333;
    border-left: 6px solid #4a90e2;
    text-align: center;
}

/* ===== UPLOAD SECTION ===== */
.upload-section {
    margin-top: 20px;
    margin-bottom: 25px;
}

.upload-label {
    display: block;
    margin-bottom: 10px;
    font-weight: bold;
    color: #333;
}

input[type="file"] {
    padding: 10px;
    font-size: 16px;
    border-radius: 10px;
    border: 2px solid #4a90e2;
    cursor: pointer;
}

/* ===== BUTTON ===== */
button {
    background: #4a90e2;
    color: white;
    border: none;
    padding: 12px 28px;
    font-size: 16px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
}

button:hover {
    background: #357abd;
    transform: scale(1.05);
}

/* ===== RESULT SECTION ===== */
.result-section {
    margin-top: 20px;
    padding: 20px;
    background: #eef4ff;
    border-radius: 15px;
}

.uploaded-preview {
    width: 220px;
    max-width: 100%;
    margin: 15px 0;
    border-radius: 12px;
    border: 3px solid #4a90e2;
}