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

body {
    font-family: 'Arial', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: gray;
    color: #333;
}

/* Sidebar Styles */
.sidebar {
    width: 250px;
    background-color: #1d2b53;
    padding: 20px;
    color: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
    border-right: 1px solid #ccc;
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    overflow-y: auto;
    z-index: 1000;
    transition: all 0.3s ease;
}

.sidebar h3 {
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.sidebar a {
    display: block;
    padding: 12px 20px;
    margin-bottom: 10px;
    background-color: #323c73;
    text-decoration: none;
    color: #fff;
    border-radius: 5px;
    font-size: 1rem;
    width: 100%;
    text-align: center;
    transition: background-color 0.3s ease;
}

.sidebar a:hover {
    background-color: #4357a2;
}

/* Hamburger Menu (For Mobile) */
.hamburger {
    display: none;
    cursor: pointer;
    position: fixed;
    top: 15px;
    left: 15px;
    z-index: 1000;
    width: 30px;
    height: 30px;
    flex-direction: column;
    justify-content: space-around;
}

.hamburger div {
    width: 100%;
    height: 4px;
    background-color: #333;
}

/* Sidebar Hidden for Mobile */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: -250px;
        height: 100%;
        transition: all 0.3s ease;
    }

    .sidebar.show {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

    .main-content {
        margin-left: 0;
        padding: 20px;
    }
}

/* Main Content */
.main-content {
    margin-left: 270px;
    padding: 20px;
}

/* Login Page Styles */
.login-container {
    width: 100%;
    max-width: 400px;
    margin: 50px auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.login-container h1 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: #1d2b53;
}

.login-container form {
    display: flex;
    flex-direction: column;
}

.login-container input {
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    width: 100%;
}

.login-container button {
    padding: 10px;
    background-color: #1d2b53;
    color: #fff;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.login-container button:hover {
    background-color: #4357a2;
}

.login-container p {
    margin-top: 10px;
}

.login-container a {
    color: #1d2b53;
    text-decoration: underline;
    transition: color 0.3s ease;
}

.login-container a:hover {
    color: #4357a2;
}

/* Register Page Styles */
.register-container {
    width: 100%;
    max-width: 500px;
    margin: 50px auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.register-container h1 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: #1d2b53;
}

.register-container form {
    display: flex;
    flex-direction: column;
}

.register-container input {
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    width: 100%;
}

.register-container button {
    padding: 10px;
    background-color: #1d2b53;
    color: #fff;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.register-container button:hover {
    background-color: #4357a2;
}

.register-container p {
    margin-top: 10px;
    text-align: center;
}

.register-container a {
    color: #1d2b53;
    text-decoration: underline;
    transition: color 0.3s ease;
}

.register-container a:hover {
    color: #4357a2;
}

/* Success & Error Messages */
.success-message, .error-message {
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 5px;
    font-weight: bold;
    text-align: center;
}

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

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

/* User Page Container */
.user-list-container {
    flex-grow: 1;
    padding: 40px;
    background-color: #fff;
    border-radius: 10px;
    margin: 20px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
}

/* Flex Layout for User Cards */
.user-list-flex {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: flex-start;
}

.user-card {
    width: calc(33.333% - 20px);
    display: flex;
    align-items: center;
    padding: 20px;
    background-color: #f9f9f9;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s ease;
}

.user-card:hover {
    transform: scale(1.02);
}

.user-card img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    margin-right: 20px;
}

.user-info {
    flex-grow: 1;
}

.user-info h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: #1d2b53;
}

.user-info p {
    margin-bottom: 10px;
    font-size: 1rem;
    color: #333;
}

.user-info p strong {
    color: #1d2b53;
}

/* Responsive Flex Behavior */
@media (max-width: 1024px) {
    .user-card {
        width: calc(50% - 20px);
    }
}

@media (max-width: 600px) {
    .user-card {
        width: 100%;
        flex-direction: column;
        align-items: flex-start;
    }

    .user-card img {
        margin-bottom: 10px;
    }
}

/* Settings Page */
.settings-container {
    max-width: 600px;
    margin: 50px auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.settings-container h1, .settings-container h2 {
    color: #1d2b53;
    margin-bottom: 20px;
    text-align: center;
}

.settings-container form {
    display: flex;
    flex-direction: column;
}

.settings-container label {
    font-size: 1rem;
    color: #333;
    margin-bottom: 10px;
}

.settings-container select, .settings-container input {
    padding: 10px;
    margin-bottom: 20px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    width: 100%;
}

.settings-container button {
    padding: 10px;
    background-color: #1d2b53;
    color: #fff;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.settings-container button:hover {
    background-color: #4357a2;
}

/* Settings Messages */
.message {
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 5px;
    font-weight: bold;
    text-align: center;
}

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

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

/* Responsive Cleanup */
@media (max-width: 768px) {
    .sidebar {
        width: 200px;
    }

    .profile-container, .settings-container, .user-list-container {
        padding: 20px;
        margin: 10px;
    }

    form textarea {
        font-size: 0.9rem;
    }

    form button {
        font-size: 0.9rem;
    }
}