body {
    margin: 0;
    font-family: 'Roboto', Arial, sans-serif;
    background-color: #f2f4f8;
    color: #222;
}

/* ===== HEADER ===== */
.header {
    background: linear-gradient(90deg, #0b5394, #073763);
    color: white;
    padding: 25px 0;
}

.header-inner {
    width: 80%;
    margin: auto;
}

.header h1 {
    margin: 0;
    font-size: 26px;
}

.header p {
    margin-top: 8px;
    font-size: 15px;
    opacity: 0.9;
}

/* ===== CONTAINER ===== */
.container {
    width: 80%;
    margin: auto;
    padding: 25px 0;
}

/* ===== INTRO ===== */
.intro {
    background: white;
    padding: 20px;
    border-left: 5px solid #0b5394;
    margin-bottom: 25px;
}

/* ===== UPLOAD BOX ===== */
.upload-box {
    background: white;
    padding: 25px;
    margin-bottom: 30px;
    border-radius: 6px;
}

.upload-box h2 {
    margin-top: 0;
}

input[type="file"] {
    margin: 15px 0;
}

button {
    background: #0b5394;
    color: white;
    padding: 10px 18px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 15px;
}

button:hover {
    background: #073763;
}

.note {
    font-size: 13px;
    color: #555;
}

/* ===== RESULT ===== */
.result-box {
    background: white;
    padding: 25px;
    border-radius: 6px;
    animation: fadeIn 0.4s ease-in-out;
}

.analysis-content {
    margin-top: 15px;
    line-height: 1.7;
    font-size: 16px;
}

/* ===== FOOTER ===== */
.footer {
    background: #073763;
    color: white;
    text-align: center;
    padding: 15px 10px;
    font-size: 14px;
    margin-top: 40px;
}

/* ===== EFFECT ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}