/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    background-color: #f4f6f8;
    color: #333;
}

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

/* Authentication forms */
.auth-form {
    max-width: 400px;
    margin: 40px auto;
    padding: 30px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.auth-form h2 {
    text-align: center;
    margin-bottom: 30px;
    color: #2c3e50;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #2c3e50;
}

.form-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.form-group input:focus {
    border-color: #3498db;
    outline: none;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s;
}

.btn-primary {
    background-color: #3498db;
    color: #fff;
    width: 100%;
}

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

/* Alert messages */
.alert {
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 5px;
    text-align: center;
}

.alert-danger {
    background-color: #fee;
    color: #e74c3c;
    border: 1px solid #e74c3c;
}

.alert-success {
    background-color: #eef7ee;
    color: #27ae60;
    border: 1px solid #27ae60;
}

/* Links */
.auth-links {
    text-align: center;
    margin-top: 20px;
}

.auth-links a {
    color: #3498db;
    text-decoration: none;
    margin: 0 10px;
}

.auth-links a:hover {
    text-decoration: underline;
}

/* Responsive design */
@media (max-width: 480px) {
    .auth-form {
        margin: 20px;
        padding: 20px;
    }

    .form-group input {
        padding: 10px;
        font-size: 14px;
    }

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

/* Dashboard styles */
.dashboard {
    padding: 20px;
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.stat-card h3 {
    color: #7f8c8d;
    margin-bottom: 10px;
}

.stat-card .value {
    font-size: 24px;
    font-weight: bold;
    color: #2c3e50;
}

/* Navigation */
.nav {
    background: #2c3e50;
    padding: 15px 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    color: #fff;
    font-size: 24px;
    text-decoration: none;
}

.nav-menu {
    display: flex;
    gap: 20px;
}

.nav-menu a {
    color: #fff;
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.nav-menu a:hover {
    background-color: rgba(255, 255, 255, 0.1);
}