body { padding: 20px; }
.container {
    max-width: 500px;
    margin: 0 auto;
}

.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 25px;
}

.header h1 {
    color: #333;
    font-size: 22px;
    margin: 0;
}

.header a:not(.back-button) {
    color: #3498db;
    text-decoration: none;
    margin-right: 15px;
    font-size: 15px;
}

.form-box {
    background: #fff;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.form-box h3 {
    margin-bottom: 20px;
    color: #555;
}

.form-box label {
    display: block;
    font-size: 14px;
    color: #555;
    margin-bottom: 6px;
    font-weight: bold;
}

.form-box input,
.form-box textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 18px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
}

.form-box textarea {
    height: 80px;
    resize: vertical;
}

.form-box input:focus,
.form-box textarea:focus {
    border-color: #4CAF50;
    outline: none;
    box-shadow: 0 0 0 2px rgba(76,175,80,0.2);
}

.form-box button {
    background: #4CAF50;
    color: #fff;
    border: none;
    padding: 11px 36px;
    border-radius: 6px;
    font-size: 15px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.form-box button:hover {
    background: #45a049;
}

.char-count {
    font-size: 12px;
    color: #aaa;
    text-align: right;
    margin-top: -12px;
    margin-bottom: 12px;
}

.optional {
    color: #999;
    font-weight: normal;
    font-size: 12px;
}

.file-upload-area {
    border: 2px dashed #ddd;
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    background: #f9f9f9;
    transition: all 0.3s ease;
}

.file-upload-area:hover {
    border-color: #4CAF50;
    background: #f0f8f0;
}

.file-upload-area input[type="file"] {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    border: none;
    background: transparent;
}

.file-hint {
    font-size: 12px;
    color: #999;
    margin-bottom: 15px;
}

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

.file-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    margin-bottom: 8px;
    background: #fff;
    border-radius: 6px;
    border: 1px solid #e0e0e0;
    transition: all 0.2s ease;
}

.file-item:hover {
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    border-color: #4CAF50;
}

.file-thumb {
    width: 50px;
    height: 50px;
    object-fit: cover;
    border-radius: 4px;
    flex-shrink: 0;
}

.file-name {
    flex: 1;
    font-size: 13px;
    color: #333;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-size {
    font-size: 12px;
    color: #999;
    flex-shrink: 0;
}