/* General Styles */
body {
    font-family: Arial, sans-serif;
    background-color: #f8f9fa;
    overflow-x: hidden;
    line-height: 1.6;
}

/* Enhanced Navbar Styles */
nav {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

nav .logo {
    font-size: 28px;
    font-weight: bold;
    color: white;
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 20px;
}

nav ul li {
    margin-left: 0;
}

nav ul li a {
    color: #fff;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 25px;
    transition: all 0.3s ease;
}

nav ul li a:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* Enhanced Footer Styles */
footer {
    background: linear-gradient(135deg, #2c3e50 0%, #3498db 100%);
    color: #fff;
    text-align: center;
    padding: 30px 0 10px;
    position: relative;
    bottom: 0;
    width: 100%;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Form Styles */
form {
    background-color: #fff;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    max-width: 600px;
    margin: 30px auto;
    border: none;
}

form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #333;
}

form input[type="text"],
form input[type="email"],
form input[type="password"],
form textarea,
form select {
    width: 100%;
    padding: 12px 15px;
    margin-bottom: 20px;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

form input:focus,
form textarea:focus,
form select:focus {
    border-color: #007bff;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
    outline: none;
}

form button {
    background: linear-gradient(135deg, #007bff, #0056b3);
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.3);
}

form button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 123, 255, 0.4);
}

/* Enhanced Error Messages */
.errors {
    background: linear-gradient(135deg, #dc3545, #c82333);
    color: #ffffff;
    padding: 15px 20px;
    border-radius: 10px;
    margin-bottom: 25px;
    border: none;
    box-shadow: 0 4px 15px rgba(220, 53, 69, 0.3);
}

.errors ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

/* Enhanced Table Styles */
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 25px;
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

table, th, td {
    border: none;
}

th, td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #e9ecef;
}

th {
    background: linear-gradient(135deg, #007bff, #0056b3);
    color: #fff;
    font-weight: 600;
}

tr:nth-child(even) {
    background-color: #f8f9fa;
}

tr:hover {
    background-color: #e3f2fd;
    transform: scale(1.01);
    transition: all 0.2s ease;
}

/* Success Messages */
.success-message {
    background: linear-gradient(135deg, #28a745, #20c997);
    color: white;
    padding: 15px 20px;
    border-radius: 10px;
    margin-bottom: 20px;
    box-shadow: 0 4px 15px rgba(40, 167, 69, 0.3);
}

/* Login/Register Buttons */
.login-button {
    display: inline-block;
    margin: 20px 0;
    padding: 12px 30px;
    background: linear-gradient(135deg, #007bff, #0056b3);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.3);
    border: none;
}

.login-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 123, 255, 0.4);
    color: white;
    text-decoration: none;
}

/* Notification Styles */
.notification-dropdown {
    width: 350px;
    max-height: 400px;
    overflow-y: auto;
    border: none;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.notification-item {
    padding: 1rem 1.5rem;
    border-left: 4px solid transparent;
    transition: all 0.3s ease;
    border-bottom: 1px solid #f8f9fa;
}

.notification-item.unread {
    border-left-color: #007bff;
    background: linear-gradient(135deg, rgba(0, 123, 255, 0.05), rgba(0, 123, 255, 0.02));
}

.notification-item:hover {
    background-color: #f8f9fa;
    transform: translateX(5px);
}

.unread-badge {
    display: inline-block;
    width: 10px;
    height: 10px;
    background: linear-gradient(135deg, #007bff, #0056b3);
    border-radius: 50%;
    margin-left: 10px;
    align-self: center;
    box-shadow: 0 2px 5px rgba(0, 123, 255, 0.3);
}

/* Bell animation */
@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

.fa-bell.has-unread {
    animation: pulse 1s infinite;
    color: #ffc107;
    filter: drop-shadow(0 2px 4px rgba(255, 193, 7, 0.3));
}

/* Cards */
.card {
    border: none;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

/* Responsive Design */
@media (max-width: 768px) {
    nav {
        flex-direction: column;
        align-items: flex-start;
        padding: 15px;
    }

    nav ul {
        flex-direction: column;
        width: 100%;
        gap: 10px;
        margin-top: 15px;
    }

    nav ul li {
        margin: 5px 0;
    }

    .dashboard {
        padding: 15px;
        margin-bottom: 80px;
    }

    form {
        padding: 20px;
        margin: 20px 15px;
    }

    table {
        font-size: 14px;
    }

    th, td {
        padding: 10px 8px;
    }
}

@media (max-width: 480px) {
    form input[type="text"],
    form input[type="email"],
    form input[type="password"],
    form textarea {
        padding: 10px 12px;
        font-size: 14px;
    }

    form button {
        padding: 10px 20px;
        font-size: 14px;
    }

    .login-button {
        padding: 10px 20px;
        font-size: 14px;
    }
}

/* Loading Spinner */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #007bff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #007bff, #0056b3);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #0056b3, #004085);
}