body {
    font-family: 'Segoe UI', sans-serif;
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #1e3c72, #2a5298);
    display: flex;
    flex-direction: column;
    align-items: center;
    color: white;
}

.navbar {
    width: 100%;
    text-align: center;
    padding: 20px;
    font-size: 22px;
    font-weight: bold;
    background: rgba(0,0,0,0.3);
}

.container {
    width: 550px;
    margin: 40px 0;
    padding: 35px;
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(12px);
    border-radius: 15px;
    box-shadow: 0 0 30px rgba(0,0,0,0.4);
}

h2, h3 {
    text-align: center;
}

input, button {
    width: 100%;
    padding: 12px;
    margin: 12px 0;
    border-radius: 8px;
    border: none;
    font-size: 15px;
}

input {
    background: rgba(255,255,255,0.9);
}

button {
    background: linear-gradient(90deg, #00c6ff, #0072ff);
    color: white;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
}

button:hover {
    transform: scale(1.03);
}

/* BIG DASHED CLICK AREAS */

#dropArea, #decryptDrop {
    border: 2px dashed #ffffff;
    padding: 45px;
    text-align: center;
    border-radius: 12px;
    cursor: pointer;
    margin: 20px 0;
    transition: 0.3s ease;
    font-weight: bold;
    font-size: 18px;
    background: rgba(255,255,255,0.05);
}

#dropArea:hover, #decryptDrop:hover {
    background: rgba(255,255,255,0.15);
}

.file-list {
    margin-top: 15px;
}

.file-item {
    background: rgba(255,255,255,0.2);
    padding: 10px;
    border-radius: 8px;
    margin-bottom: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.file-item a {
    color: #00ffcc;
    font-weight: bold;
    text-decoration: none;
}

.file-item a:hover {
    text-decoration: underline;
}