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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-container h1 {
    text-align: center;
    color: white;
    margin-bottom: 30px;
    font-size: 2rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.login-box {
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.login-box h2 {
    text-align: center;
    color: #333;
    margin-bottom: 30px;
    font-size: 1.5rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 5px;
    color: #555;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.btn-login {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-login:active {
    transform: translateY(0);
}

.signup-link {
    text-align: center;
    margin-top: 20px;
    color: #666;
}

.signup-link a {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
}

.signup-link a:hover {
    text-decoration: underline;
}

.error-message {
    background: #fee;
    color: #c33;
    padding: 10px;
    border-radius: 5px;
    margin-bottom: 15px;
    border: 1px solid #fcc;
}

.success-message {
    background: #efe;
    color: #3c3;
    padding: 10px;
    border-radius: 5px;
    margin-bottom: 15px;
    border: 1px solid #cfc;
}

/* Dashboard styles */
.dashboard-container {
    width: 100%;
    max-width: 1200px;
    padding: 20px;
}

.dashboard-header {
    background: white;
    padding: 20px 30px;
    border-radius: 10px;
    margin-bottom: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.dashboard-header h1 {
    color: #333;
    font-size: 1.8rem;
}

.dashboard-header .user-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.dashboard-header .user-info span {
    color: #666;
}

.btn-logout {
    padding: 8px 20px;
    background: #f44336;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 500;
    transition: background 0.3s;
}

.btn-logout:hover {
    background: #d32f2f;
}

.dashboard-content {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.dashboard-content h2 {
    color: #333;
    margin-bottom: 20px;
}

.dashboard-content p {
    color: #666;
    line-height: 1.6;
}

/* Mobile responsive */
@media (max-width: 480px) {
    .login-box {
        padding: 20px;
    }
    
    .login-container h1 {
        font-size: 1.5rem;
    }
    
    .dashboard-header {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
}