* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    background-color: #f5f5f5;
    color: #333;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

header {
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

h1 {
    color: #2c3e50;
    margin-bottom: 20px;
    text-align: center;
}

nav {
    display: flex;
    justify-content: center;
    gap: 10px;
}

.tab-button {
    padding: 10px 20px;
    border: none;
    background-color: #f0f0f0;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s;
}

.tab-button.active {
    background-color: #3498db;
    color: white;
}

.tab-content {
    display: none;
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.tab-content.active {
    display: block;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 5px;
    color: #2c3e50;
}

input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
}

.password-input {
    display: flex;
    gap: 10px;
}

.password-input input {
    flex: 1;
}

.toggle-password {
    padding: 10px 20px;
    background-color: #f0f0f0;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.btn-primary {
    background-color: #3498db;
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    width: 100%;
    transition: background-color 0.3s;
}

.btn-primary:hover {
    background-color: #2980b9;
}

.search-container {
    margin-bottom: 20px;
}

.password-list {
    display: grid;
    gap: 15px;
}

.password-item {
    background-color: #f8f9fa;
    padding: 15px;
    border-radius: 4px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.password-info h3 {
    color: #2c3e50;
    margin-bottom: 5px;
}

.password-info p {
    color: #666;
    font-size: 14px;
}

.password-actions {
    display: flex;
    gap: 10px;
}

.btn-copy,
.btn-delete {
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.3s;
}

.btn-copy {
    background-color: #2ecc71;
    color: white;
}

.btn-copy:hover {
    background-color: #27ae60;
}

.btn-delete {
    background-color: #e74c3c;
    color: white;
}

.btn-delete:hover {
    background-color: #c0392b;
}

.message {
    padding: 10px;
    margin-bottom: 20px;
    border-radius: 4px;
    text-align: center;
    display: none;
}

.message.success {
    background-color: #d4edda;
    color: #155724;
    display: block;
}

.message.error {
    background-color: #f8d7da;
    color: #721c24;
    display: block;
}

.message.info {
    background-color: #d1ecf1;
    color: #0c5460;
    display: block;
}