.signature-box {
    width: 95%;
    border: 1px solid #ccc;
    padding: 10px;
    background: #fff;
    text-align: center;
}
.full-height {
    height: 90vh; /* Chiều cao bằng 100% màn hình */
}
.signature-list {
    text-align: left;
    margin-bottom: 10px;
    min-height: 300px;
}

.signature-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px;
    border-bottom: 1px solid #ddd;
}

.signature-item img {
    max-width: 175px;
    max-height: 100px;
    cursor: pointer;
    border: 1px solid #ccc;
    padding: 5px;
    background: #f9f9f9;
}

.delete-btn {
    background: red;
    color: white;
    padding: 5px 10px;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    border: none;
    transition: background 0.3s;
}

.delete-btn:hover {
    background: darkred;
}

.upload-label {
    display: block;
    padding: 12px;
    background: #28a745;
    color: white;
    text-align: center;
    cursor: pointer;
    margin-top: 10px;
    font-size: 16px;
    border-radius: 5px;
    transition: background 0.3s;
}

.upload-label:hover {
    background: #218838;
}

input[type="file"] {
    display: none;
}
.download-label {
    display: block;
    padding: 12px;
    background: red;
    color: white;
    text-align: center;
    cursor: pointer;
    margin-top: 10px;
    font-size: 16px;
    border-radius: 5px;
    transition: background 0.3s;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #f8f9fa;
    padding: 10px 20px;
    border-bottom: 2px solid #ddd;
}

.nav-left {
    display: flex;
    align-items: center;
}

.upload-btn {
    background: pink;
    border: 1px solid #ccc;
    padding: 5px 10px;
    cursor: pointer;
    border-radius: 5px;
    margin-right: 10px;
}

.upload-btn:hover {
    background: #eee;
}

.nav-left span {
    font-size: 18px;
    font-weight: bold;
}

.nav-right {
    display: flex;
    align-items: center;
}

.free-trial {
    display: flex;
    align-items: center;
    background: none;
    border: 1px solid #ccc;
    padding: 5px 10px;
    cursor: pointer;
    border-radius: 5px;
    margin-right: 10px;
}

.free-trial img {
    width: 14px;
    height: 14px;
    margin-right: 5px;
}

.free-trial:hover {
    background: #ffd700;
    color: #fff;
}

.profile-icon {
    width: 24px;
    height: 24px;
    cursor: pointer;
}

input[type="file"] {
    display: none;
}
footer {
    background: #222;
    color: #fff;
    padding: 20px 0;
    text-align: center;
    font-family: Arial, sans-serif;
}